Publications

2024:

[11] Jing Hao*, Irene Mutegi*, Madhubanti Mukherjee, Harikrishna Sahu, Ashish Khomane, Omer Yassin, Rampi Ramprasad, Gregory A. Sotzing, Yang Cao, “High-temperature high-k polyolefin by rational molecular design“, The Proceedings of the National Academy of Sciences (PNAS), accepted, Nov.4th, 2024.

[10] Kerry Davis-Amendola*, Mohamadreza Arab Baferani*, Tohid Shahsavarian, Chuanyang Li, Wesley Zhong, JoAnne Ronzello, Roger Walker, and Yang Cao, “Electrical Treeing at High Altitude: Effect of Pressure and Temperature”, IEEE Access, Vol.12, pp.137825-137835, 2024. DOI: 10.1109/ACCESS.2024.3457754

[9] Tohid Shahsavarian, Moritz Ploner, Kerry Davis-Amendola, Brian Chislea, John McKeen, Di Zhang, Andrea Cavallini, Yang Cao, “Unveiling Design and Encapsulation Challenges in Direct Copper Bond (DCB)-Based Power Converters with Partial Discharge and Modeling Insights for Aerospace Applications”, IEEE Access, Vol.12, pp.125735-125750, 2024. DOI: 10.1109/ACCESS.2024.3442016

[8] Jierui Zhou, Jiahao Mao, Wenqiang Gao, Zongze Li, Jindong Huo, Miko Cakmak, Yang Cao, “High field conduction in biaxially oriented polypropylene at elevated temperature“, High Voltage, accepted, July 25, 2024.

[7] Rishi Gurnani, Stuti Shukla, Deepak Kamal, Chao Wu, Jing Hao, Christopher Kuenneth, Pritish Aklujkar, Ashish Khomane, Robert Daniels, Ajinkya Deshmukh, Yang Cao, Gregory Sotzing, Rampi Ramprasad, “AI-Assisted Discovery of High-Temperature Dielectrics for Energy Storage”, Nature Communications, Vol.15, 6107, 2024. DOI: 10.1038/s41467-024-50413-x

[6] Wenqiang Gao, Luisa F. Posada, Vahid Shiravand, Shubhashish Shubhashish, Capri Price, Radislav A. Potyrailo, Karim Younsi, Shiyao Shan, Ibrahima Ndiaye, Jierui Zhou, Andres Laso, Nenad Uzelac, Wesley Zhong, Steven L. Suib, Yang Cao, “High-throughput compatibility screening of materials for SF6-alternative insulation”, Environmental Science & Technology, Vol.58, pp. 13296-13306, 2024. https://pubs.acs.org/doi/full/10.1021/acs.est.4c03190

Inside cover highlight

[5] Stuti Shukla‡, Chao Wu‡, Ankit Mishra, Junkun Pan, Aaron P. Charnay, Ashish Khomane, Ajinkya Deshmukh, Jierui Zhou, Madhubanti Mukherjee, Rishi Gurnani, Pragati Rout, Riccardo Casalini, Rampi Ramprasad, Michael D. Fayer, Priya Vashishta, Yang Cao*, Gregory Sotzing*, “Pendant group functionalization of cyclic olefin for high temperature and high-density energy storage”, Advanced Materials, Vol.36, 2402133, 2024. DOI: 10.1002/adma.202402133

[4] Jierui Zhou, Mohamadreza Arab Baferani, Tohid Shahsavarian, Patrick McGinnis, Steven Walker, Dehao Qin, Zheyu Zhang, Dong Dong, Di Zhang, Chuanyang Li, Yang Cao, “DC Flashover in Printed Circuit Boards at Low Gas Pressures: Mechanism and Mitigation Recommendations”, IEEE Access, Vol.12, pp.77347-77355, 2024. DOI: 10.1109/ACCESS.2024.3406429

[3] Ningzhen Wang, He Zhang, Xunlin Qiu, Reimund Gerhard, Jan van Turnhout, Jason Cressotti, Dong Zhao, Liang Tang, Yang Cao, “Recent Advances in Ferroelectret Fabrication, Performance Optimization and Applications”, Advanced Materials, Vol.36, 202400657, 2025. DOI: 10.1002/adma.202400657

[2] Wenqiang Gao, Luisa Posada, Shubhashish Shubhashish, Vahid Shiravand, Capri Price, Radislav Potyrailo, Karim Younsi, Shiyao Shan, Ibrahima Ndiaye, Jierui Zhou, Charlotte Cabrera, Wesley Zhong, Steven L. Suib, Yang Cao, “Mitigations of Aging Product Generation in C4F7N-Based SF6 Alternatives – A Holistic Approach”, ACS Sustainable Chemistry & Engineering, Vol.12, pp.6467-6472, 2024. DOI: 10.1021/acssuschemeng.4c01641

Insider cover highlight.

[1] Wenqiang Gao, Luisa Posada, Vahid Shiravand, Shubhashish Shubhashish, Capri Price, Boya Zhang, Radislav Potyrailo, Karim Younsi, Shiyao Shan, Ibrahima Ndiaye, Charlotte Cabrera, Jierui Zhou, Maxime Perret, Thomas Berteloot, Yannick Kieffel, Andres Laso, Nenad Uzelac, Steven L. Suib, Yang Cao, “Decomposition characteristics of C4F7N-based SF6-alternative gas mixtures”, Journal of Applied Physics, Vol.135, 063302, 2024. DOI: 10.1063/5.0188478

2023:

[15] Zongze Li+, Chao Wu+, Lihua Chen, Yifei Wang, Zeynep Mutulu, Hiroaki Uehara, Jierui Zhou, Miko Cakmak, Rampi Ramprasad & Yang Cao*, “Probing electronic band structures of polymer dielectrics via prebreakdown conduction”, Advanced Materials, Vol.36, 2310497, 2024. DOI: 10.1002/adma.202310497

[14] Ningzhen Wang, Mohamadreza Arab Baferani, Robert Daniels, Chao Wu, Jindong Huo, Jan van Turnhout, Gregory A. Sotzing, Reimund Gerhard, Yang Cao, “Macro-dipoles in soft/hard expanded-polytetrafluoroethylene + fluoroethylenepropylene (ePTFE+FEP) fluoropolymer-film systems for high-output piezoelectric ferroelectret-transducer applications”, Journal of Physics D: Applied Physics, Vol.57, 145502, 2024. DOI: 10.1088/1361-6463/ad1a84

[13] Arshiah Y. Mirza, Hiep H. Nguyen, Yang Cao, Ali M. Bazzi, “Prediction of Breakdown Time of Insulation Material for use in Medium-voltage Inverter-fed Marine Propulsion Motor Applications”, IEEE Transactions on Transportation Electrification, accepted, Dec. 10th, 2023.

[12] Jierui Zhou, Marina Dabaghian, Yifei Wang, Michael Sotzing, Anna Marie LaChance, Kuangyu Shen, Wenqiang Gao, Antigoni Konstantinou, Chao Wu, Jing Hao, Luyi Sun, Yang Cao, “High-Temperature Dielectric Energy Storage Films with Self-co-assembled Hot-electron Blocking Nanocoatings”, Nano Energy, Vol. 120, 109184, 2024. DOI: 10.1016/j.nanoen.2023.109184

[11] Ajinkya Deshmukh, Chao Wu*, Omer Yassin, Lihua Chen, Stuti Shukla, Jierui Zhou, Ashish Khomane, Rishi Gurnani, Ting Lei, Xidong Liang, Rampi Ramprasad, Yang Cao*, Gregory Sotzing*, “The Effect of Fluorine in Redesigning Energy Storage Properties of High-Temperature Dielectric Polymers”, ACS Applied Materials & Interfaces, Vol. 15, pp.46840-46848, 2023. DOI: 10.1021/acsami.3c08858

[10] Dehao Qin, Zheyu Zhang, Di Zhang, Yuntao Xu, Cheng Wan, Lakshmi Ravi, Tohid Shahsavarian, Dong Dong, Yang Cao, “Oscillation Issue and Solution for Solid-state Circuit Breaker Using High Power IGBT Module”, IEEE Transactions on Industry Applications, accepted, Aug.22, 2023. DOI: 10.1109/TIA.2023.3314015

[9] Ankit Mishra, Lihua Chen, ZongZe Li, Ken-ichi Nomura, Aravind Krishnamoorthy, Shogo Fukushima, Subodh C Tiwari, Rajiv K Kalia, Aiichiro Nakano, Rampi Ramprasad, Greg Sotzing, Yang Cao, Priya Vashishta, “Computational framework for polymer synthesis to study dielectric properties using polarizable reactive molecular dynamics”, Computational Materials Science, Vol.228, 112340, 2023. DOI: 10.1016/j.commatsci.2023.112340

[8] Sebastian M. Fica-Contreras, Zongze Li, Abdullah Alamri, Aaron P. Charnay, Junkun Pan, Chao Wu, Jeffrey R. Lockwood, Omer Yassin, Stuti Shukla, Gregory Sotzing*, Yang Cao*, Michael D. Fayer*, “Synthetically tunable polymers, free volume element size distributions, and dielectric breakdown field strengths”, Materials Today, Vol.67, July-August, pp.57-67, 2023. DOI: 10.1016/j.mattod.2023.05.010

[7] Chao Wu, Ajinkya A Deshmukh, Lihua Chen, Rampi Ramprasad, Gregory A Sotzing, Yang Cao, “Impact of Oxygen Containing Carbonyl and Ether Groups on Dielectric Properties of Poly (oxa) norbornene Cyclic Olefins”, Journal of Advanced Dielectrics, Vol.13, 2341005, 2023, DOI: 10.1142/S2010135X23410059

[6] Jindong Huo, Yifei Wang, Ningzhen Wang, Wenqiang Gao, Jierui Zhou, Yang Cao, “Data-driven design and optimization of ultra-tunable acoustic metamaterials“, Smart Materials and Structures, Vol.32, 05LT01, March 10th, 2023. DOI: 10.1088/1361-665X/acc36c

[5] Yifei Wang, Jierui Zhou, Antigoni Konstantinou, Mohamadreza Arab Baferani, Kerry Davis, Wenqiang Gao, Yang Cao, “Sandwiched polymer nanocomposites reinforced by two-dimensional interface nanocoating for ultrahigh energy storage performance at elevated temperatures“, Small, Vol.19, 2208105, 2023. DOI: 10.1002/smll.202208105

[4] Weikang Xian, Chung-Hao Liu, Behrad Kangarlou, Shing-Yun Chang, Chao Wu, Yang Cao, Luyi Sun, Anson W. K. Ma, Mu-Ping Nieh, Amitesh Maiti, Andrew P. Saab, and Ying Li, “Effect of Diphenyl Content on Viscoelasticity of Poly(dimethyl-co-diphenyl)siloxane Melt and Network”, ACS Appl. Polym. Mater., Vol.5, pp.1915-1925, 2023. DOI: 10.1021/acsapm.2c01979

[3] Mayank Jain, Zeynep Mutlu, Jiahao Mao, Jierui Zhou, Chao Wu, Yang Cao, Mukerrem Cakmak, “Effect of constrained annealing on the structural and dielectric properties of melt cast PVDF/PMMA films”, Journal of Polymer Science, Vol.61, pp.1132-1149, 2023. DOI: 10.1002/pol.20220758

[2] Yang Cao, US Patent # 11,855,501, “Nanostructured insulation for electric machines”, Dec. 26th, 2023.

[1] Yang Cao, US Patent # 11,569,701, “Nanostructured insulation for electric machines“, Jan. 31, 2023.

2022:

[24] Mayank Jain, Zeynep Mutlu, Jiahao Mao, Jierui Zhou, Peinan Zhou, Chao Wu, Tugba Isik, Yang Cao, Volkan Ortalan, Miko Cakmak, “Shear Amplification of Orientation in Nylon 11/Clay Nanocomposites during Melt Casting and Resulting Electrical Properties“, Polymer Engineering and Science, Vol.63, pp.863-879 , 2023. DOI: 10.1002/pen.26250

[23] Mayank Jain, Zeynep Mutlu, Jiahao Mao, Jierui Zhou, Peinan Zhou, Chao Wu, Yang Cao, Mukerrem Cakmak, “Effect of uniaxial stretching on the structural and dielectric properties of melt cast Nylon 11 films“, Polymer Engineering and Science, Vol.63, pp.387-401, 2023. https://doi.org/10.1002/pen.26214

[22] Chao Wu, L. A. Dissado, Yanfeng Gao, Qian Wang, Yingyan Liu, Yang Cao, and Xidong Liang, “Dielectric Response – A Nondestructive Approach to Probing the Micro-interface of Aluminum Hydroxide Filled Silicone Rubber Composites for Outdoor Insulation”, IET High Voltage, Vol.8, pp.810-818, 2023. DOI: 10.1049/hve2.12315

[21] Moritz Ploner+, Ningzhen Wang+, Chao Wu, Robert Daniels, Jindong Huo, Gregory A. Sotzing, Yang Cao, “Ultrathin, all-organic, fabric based ferroelectret loudspeaker for wearable electronics”, iScience, Vol.25, 105607, 2022. https://doi.org/10.1016/j.isci.2022.105607

 [20] Yifei Wang, Zongze Li, Thomas J. Moran, Chao Wu, Antigoni C. Konstantinou, Hiep Nguyen, Luis A. Ortiz, Jierui Zhou, Jindong Huo, Kerry Davis, Peinan Zhou, Bryan D. Huey, and Yang Cao, “Interfacial 2D Montmorillonite Nanocoatings Enable Sandwiched Polymer Nanocomposites to Exhibit Ultrahigh Capacitive Energy Storage Performance at Elevated Temperatures”, Advanced Science, 2204760, 2022. DOI: 10.1002/advs.202204760.

[19] Ningzhen Wang, Jan van Turnhout*, Robert Daniels, Chao Wu, Jindong Huo, Reimund Gerhard, Gregory A. Sotzing, Yang Cao*, “Ion-boosting the charge density and piezoelectric response of ferroelectrets to significantly high levels”, ACS Applied Materials & Interfaces, Vol.14, pp.42705-42712, 2022. https://doi.org/10.1021/acsami.2c12185

[18] Qian Wang*, Chao Wu*, Anna Marie LaChance, Jierui Zhou, Yanfeng Gao, Yunxiao Zhang, Luyi Sun, Yang Cao*, Xidong Liang*, “Interfacial Polarization Suppression of P(VDF-HFP) Film through 2D Montmorillonite Nanosheets Coating”, Progress in Organic Coatings, Vol. 172, 107119, , 2022. https://doi.org/10.1016/j.porgcoat.2022.107119

[17] Arshiah Mirza, Weiqiang Chen, Ali Bazzi, Hiep Nguyen, Yang Cao, Liwei Hao, “Modelling electrical aging of Polyimide Kapton HN for medium-voltage motor insulation under high-voltage high-frequency PWM waveforms”, IEEE Transactions on Dielectrics and Electrical Insulation, Vol.29, pp.2394-2401, 2022. 10.1109/TDEI.2022.3204075

[16] Mohamadreza Arab Baferani, Tohid Shahsavarian, Mattewos Teffari, Qin Chen, and Yang Cao, “Study of EPR-based Nanodielectrics under Operational Conditions for DC Cable Insulation“, Journal of Applied Physics, Vol.132, 084101,  2022. https://doi.org/10.1063/5.0091930

[15] Hiep Hoang Nguyen, Antigoni Konstantinou, Yifei Wang, JoAnne Ronzello, Kerry Davis, and Yang Cao, “Design of experiment study of hybrid epoxy composite insulation with high through-plane thermal conductivity and superior dielectric strength“, Materials Advances, Vol.3, pp.7132-7141, 2022. DOI: 10.1039/D2MA00592A

[14] Jindong Huo, Alex Rontey, Yifei Wang, Linda Jacobs, Qin Chen, Ningzhen Wang, Shilei Ma, Yang Cao, “Arc hopping dynamics induced by interfacial negative differential resistance”, PNAS Nexus, Volume 1, Issue 3, July 2022, pgac129 https://doi.org/10.1093/pnasnexus/pgac129

[13] Chao Wu, Ajinkya A. Deshmukh, Lihua Chen, Rampi Ramprasad, Gregory A. Sotzing, Yang Cao, “Rational design of all-organic flexible high-temperature polymer dielectrics”, Matter, Vol.5, pp.2615-2623, 2022. https://doi.org/10.1016/j.matt.2022.06.064

[12] Abdullah Alamri+, Chao Wu+, Ankit Mishra, Lihua Chen, Zongze Li, Ajinkya Deshmukh, Jierui Zhou, Rampi Ramprasad, Priya Vashishta, Yang Cao*, and Gregory Sotzing*, “Improving the Rotational Freedom of Polyetherimide: Enhancement of the Dielectric Properties of a Commodity High Temperature Polymer Using a Structural Defect”, Chemistry of Materials, Vol.34, pp. 6553-6558. https://doi.org/10.1021/acs.chemmater.2c01441

[11] Jierui Zhou, Michael Sotzing, Zongze Li, Chao Wu, Peinan Zhou, Yifei Wang, Yang Cao, “Temperature-dependent breakdown and pre-breakdown conduction of Polyethylene terephthalate“, Journal of Physics D: Applied Physics, Vol.55, 365302, 2022. https://doi.org/10.1088/1361-6463/ac789f

[10] Arshiah, Ali Bazzi, Hiep Nguyen, Yang Cao, “Motor Stator Insulation Stress Due to Multilevel Inverter Voltage Output Levels and Power Quality”, Energies, Vol.15, pp.4091, 2022. https://doi.org/10.3390/en15114091.

[9] Chao Wu, Anna Marie LaChance, Mohamadreza Arab Baferani, Kuangyu Shen, Zongze Li, Zaili Hou, Ningzhen Wang, Yifei Wang, Luyi Sun, Yang Cao, “Scalable self-assembly interfacial engineering for high temperature dielectric energy storage”, iScience, 25, 104601, 2022. https://doi.org/10.1016/j.isci.2022.104601

[8] Chuanyang Li, Yang Yang, Guoqiang Xu, Yao Zhou, Mengshuo Jia, Shaolong Zhong, Yu Gao, Chanyeop Park, Qiang Liu, Yalin Wang, Shakeel Akram, Xiaoliang Zeng, Yi Li, Fangwei Liang1, Bin Cui, Junpeng Fang, Lingling Tang, Yulin Zeng, Giovanni Mazzanti, Jinliang He, Jianxiao Wang, Davide Fabiani, Gilbert Teyssedre, Yang Cao, Feipeng Wang, Yunlong Zi, “Insulating materials for realizing Carbon Neutrality: opportunities, remaining issues and challenges”, IET High Voltage, publi, May 26, 2022. https://doi.org/10.1049/hve2.12232

[7] M. Ren†, Y. Wang†, J. Liu, C. Wu, Z. Hou, A. Konstantinou, J. Zhou, H. Nguyen, K. Davis, L. Sun* and Y. Cao*, “Enhancing Corona Resistance in Kapton with Self-Assembly Two-Dimensional Montmorillonite Nanocoatings”, Mater. Adv., Vol.3, pp.3853-3861, DOI: 10.1039/D2MA00205A. Back cover featured.

[6] Tohid Shahsavarian, Yang Cao, “An inventive multi-scale, Multiphysics modelling approach and comparative analysis of distinctive features of the planar ionization waves in the air: II. Positive streamers”, Journal of Physics D: Applied Physics, Vol.55, 245204 (16pp), 2022. DOI: 10.1088/1361-6463/ac59fe

[5] Tohid Shahsavarian, Yang Cao, “An inventive multi-scale, Multiphysics modelling approach and comparative analysis of distinctive features of the planar ionization waves in the air: I. Negative streamers”, Journal of Physics D: Applied Physics, Vol.55, 245203 (10pp), 2022. DOI: 10.1088/1361-6463/ac59fd

[4] Mohamadreza Arab Baferani, Chuanyang Li and Yang Cao, “Shallow trap mediated charge transport in polymer dielectrics for HVDC by incorporating 2D nanoclay”, Applied Physics A, Vol.128, 284, 2022. DOI: 10.1007/s00339-022-05450-y

[3] Yifei Wang, Zongze Li, Chao Wu, Peinan Zhou, Jierui Zhou, Jindong Huo, Kerry Davis, Antigoni Konstantinou, Hiep Nguyen, and Yang Cao, “High-performance polymer dielectric with montmorillonite nanosheets coating for high-temperature energy storage”, Chemical Engineering Journal, Vol. 437, 135430, 2022. DOI: 10.1016/j.cej.2022.135430

[2] Chuanyang Li, Jingjing Fu, Yunlong Zi and Yang Cao, “Insulator Surface Charge Behaviors: From Hazards to Functionality”, IEEE Electrical Insulation Magazine, Vol.38, pp.6-14, 2022. DOI: 10.1109/MEI.2022.9757853

[1] Ajinkya A. Deshmukh†, Chao Wu†, Omer Yassin, Ankit Mishra, Lihua Chen, Abdullah Alamri, Zongze Li, Jierui Zhou, Zeynep Mutlu, Michael Sotzing, Pankaj Rajak, Stuti Shukla, John Vellek, Mohamadreza Arab Baferani, Mukerrem Cakmak, Priya Vashishta, Rampi Ramprasad, Yang Cao*, Gregory Sotzing*, “Flexible polyolefin dielectric by strategic design of organic modules for harsh condition electrification“, Energy & Environmental Science, Vol.15, pp.1307-1314, 2022. DOI: 10.1039/D1EE02630E.

[1] Guest Editorial: Chuanyang Li, Yunlong Zi, Yang Cao, Giovanni Mazzanti, Davide Fabiani, Di Zhang, Yunqi Xing, Jinliang He, “Advanced insulating materials contributing to “carbon neutrality”: Opportunities, issues and challenges”, IET High Voltage, Vol.7, pp.607-609, 2022. DOI: 10.1049/hve2.12243

2021:

[20] Abdullah Alamri‡, Wu Chao‡, Shamima Nasreen, Omer Yassen,  Ryan Gentile,  Deepak Kamal, Rampi Ramprasard, Yang Cao *, and Gregory Sotzing *, “High Dielectric Constant and High Breakdown Strength Polyimide via Tin Complexation of the Polyamide Acid Precursor“, RSC Advances, Vol.12, pp.9095-9100, 2022. DOI:10.1039/D1RA06302B

[19] Mohamadreza Arab Baferani, Chao Wu, Yang Cao, “Charge Transport and Space Charge Dynamics in EPDM/2D-Nanoclay Composite Dielectrics”, Composites Science and Technology, published online, Vol. 219, 109241, 2022. DOI: 10.1016/j.compscitech.2021.109241

[18] Wenqiang Gao, Yang Cao*, Yifei Wang, Capri Price, JoAnne Ronzello, Nenad Uzelac, Andres Laso, Mattewos Tefferi, Kennedy Darko, “Materials Compatibility Study of  C4F7N/CO2 Gas Mixture for Medium-voltage Switchgear”, IEEE Transactions on Dielectrics and Electrical Insulation, Vol.29, pp.270-278, 2022. DOI: 10.1109/TDEI.2022.009898.

[17] Chuanyang Li, Tohid Shahsavarian, Mohamadreza Arab Baferani, Kerry Davis, Yang Cao*, and Di Zhang, “Understanding of DC Partial Discharge: Recent Progress, Challenges, and Outlooks”, CSEE Journal of Power and Energy Systems, Vol.8, pp.894-909, 2022. DOI: 10.17775/CSEEJPES.2021.04740.

[16]Thomas Linker†, Yifei Wang†, Ankit Mishra, Deepak Kamal, Yang Cao*, Rajiv K. Kalia, Aiichiro Nakano*, Rampi Ramprasad, Fuyuki Shimojo, Gregory Sotzing, and Priya Vashishta, “Deep Well Trapping of Hot Carriers in Hexagonal Boron Nitride Coating of Polymer Dielectrics”, ACS Applied Materials & Interfaces, Vol.13, pp.60393–60400, 2021. DOI: 10.1021/acsami.1c14587

[15] Sneh Sinha, Robert Daniels, Omer Yassin, Matthew Baczkowski, Mattewos Tefferi, Ajinkya Deshmukh, Yang Cao, Gregory Sotzing, “All Organic Textile Display from Robust, Open-air Fabrication Technique”, Advanced Materials Technologies, Vol.7, 2100548, 2022. DOI: 10.1002/admt.202100548

[14] Tohid Shahsavarian, Di Zhang, Patrick McGinnis, Steven Walker, Zheyu Zhang, Yang Cao, “Altitude Readiness of High Voltage IGBTs Subjected to the Partial Discharge at Harsh Environmental Conditions for Hybrid Electric Aircraft Propulsion“, IEEE Transactions on Power Electronics, Vol.37, pp.3733-3736, 2022. DOI: 10.1109/TPEL.2021.3123462

[13] Chao Wu , Ajinkya A. Deshmukh , Omer Yassin , Jierui Zhou , Abdullah Alamri , John Vellek , Stuti Shukla , Michael Sotzing , Riccardo Casalini , Gregory A. Sotzing , Yang Cao, “Flexible cyclic-olefin with enhanced dipolar relaxation for harsh condition electrification”, Proceedings of the National Academy of Sciences of the United States of America (PNAS), Vol. 118 (45), e211536711, 2021. DOI: 10.1073/pnas.2115367118

[12] Yifei Wang, Shamima Nasreen, Deepak Kamal, Zongze Li, Chao Wu, Jindong Huo, Lihua Chen, Rampi Ramprasad, Yang Cao, “Tuning Surface States of Metal/Polymer Contacts Toward Highly Insulating Polymer-Based Dielectrics“, ACS Applied Materials & Interfaces, Vol.13, pp.46142-46150, 2021. DOI: 10.1021/acsami.1c12854

[11] Mohamadreza Arab Baferani, Chuanyang Li, Mattewos Tefferi, Ningzhen Wang, Yang Cao, “Large Improvement in DC electrical properties of EPDM with 2D platelet nanoclay”, Journal of Physics D: Applied Physics, Vol. 54, 475304 (11pages), 2021. DOI: 10.1088/1361- 6463/ac2277

[10] Chao Wu†, Lihua Chen†, Ajinkya Deshmukh, Deepak Kamal, Zongze Li, Pranav  Shetty,  Jierui Zhou, Harikrishna Sahu,  Huan Tran, Gregory Sotzing, Ramp Ramprasad*, Yang Cao*, “Dielectric polymers tolerant to electric field and temperature extremes: Integration of phenomenology, informatics and experimental validation”, ACS Applied Materials & Interfaces, Vol.13 (45), pp.53416-53424, 2021. DOI: 10.1021/acsami.1c11885

[9] Chuanyang Li, Tohid Shahsavarian, Mohamadreza Arab Baferani, and Yang Cao, “Tailoring  insulation surface conductivity for surface partial discharge mitigation“, Applied Physics Letters, Vol. 119, 032903, 2021. Doi: 10.1063/5.0050456.

[8] Ningzhen Wang, Robert Daniels, Liam Connelly, Michael Sotzing, Chao Wu, Reimund Gerhard, Gregory A. Sotzing, Yang Cao, “All-organic flexible ferroelectret nanogenerator with fabric-based electrodes for self-powered body area networks”, Small, Vol. 17 (33), 2103161, 2021. DOI:10.1002/smll.202103161 Inside Front Cover

[7] Chao  Wu, Ajinkya A.  Deshmukh, Zongze  Li, Lihua  Chen, Abdullah  Alamri, Yifei  Wang, Jierui  Zhou, Omer  Yassin, Rampi  Ramprasad, Gregory A.  Sotzing, Yang  Cao, “Remarks on the Design of Flexible High-Temperature Polymer Dielectrics for Emerging Grand Electrification – Exemplified by Poly(oxa)norbornenes”, IEEE Transactions on Dielectrics and Electrical Insulation, Vol.28, pp.1468-1470, 2021. DOI: 10.1109/TDEI.2021.009620

[6] Boya Zhang†, Jingjing Liu†, Ming Ren†, Chao Wu†, Thomas J. Moran, Songshan Zeng, Sonia E. Chavez, Zaili Hou, Zongze Li, Anna Marie LaChance, T. Richard Jow, Bryan D. Huey, Yang Cao*, Luyi Sun*, “Reviving the ‘Schottky’ barrier for flexible polymer dielectrics with a superior 2D nano-assembly coating”, Advanced Materials, Vol.33,2101374, 2021. DOI: 10.1002/adma.202101374   Insider Front Cover Highlight

[5] T. Shahsavarian, Y. Pan, Z. Zhang, C. Pan, H. Naderiallaf, J. Guo, C. Li*, Y. Cao*, “A Review of Knowledge-based Defect Identification via PRPD patterns in High Voltage Apparatus“, IEEE ACCESS, Vol.9, pp.77705 – 77728, May 17, 2021. DOI: 10.1109/ACCESS.2021.3082858.

Knowledge-based PRPD pattern analysis for defect and fault predictions in high voltage apparatus.

[4] Tohid Shahsavarian, Xin Wu, Charles Lents, Di Zhang, Chuanyang Li, Yang Cao, “Temperature-dependent Partial Discharge Characteristics of High Temperature Materials at DC Voltage for Hybrid Propulsion Systems“, High Voltage, Vol. 6, pp.590-598, 2021. DOI: 10.1049/hve2.12110

[3] Deepak Kamal, Tran Huan, Chiho Kim, Yifei Wang, Lihua Chen, Yang Cao, V. Roshan Joseph, and Rampi Ramprasad , “Novel High-Voltage Polymer Insulators using Computational and Data-Driven Techniques“, Journal of Chemical Physics, Vol. 154, 174906, 2021. DOI: 10.1063/5.0044306

[2] Peinan Zhou†, Yifei Wang†, Shamima Nasreen†, Yang Cao, “Barrier heights of polymer-electrode interfaces measured via photo injection current method“, Surfaces and Interfaces, Vol.24, 101070, 2021. DOI: 10.1016/j.surfin.2021.101070.

[1] Gregory Allen Sotzing, Yang Cao, “Flexible fabric antenna system comprising conductive polymers and method of making same”, US Patent # 11043728, 6/22/2021.

[2] Guest Editorial: Chuanyang Li, Yang Cao, Qi Li, Uwe Reichert, David Fabiani, “Focus on Gas-Solid Interface Charging Physics”, Nanotechnology, https://iopscience.iop.org/journal/0957-4484/page/Focus-on-Gas-Solid-Interface-Charging-Physics.

[1] Guest Editorial: Cheng Pan, Yang Cao, Chuanyang Li, “Partial discharge at DC voltage”, High Voltage, Vol. 6, pp.563-564, 2021. DOI:10.1049/hve2.12134.

2020:

[15]Hiep Nguyen, Arshiah Mirza, Weiqiang Chen, Yiqi Liu, JoAnne Ronzello, Jack Chapman, Ali Bazzi and Yang Cao, “Investigation of 2D Nano-structured Winding Insulation for High Torque Density Medium-Voltage Motor“, IEEE ACCESS, Vol.9, pp.2274-2282, 2021. DOI: 10.1109/ACCESS.2020.3047103

A revolutionary 2D nanostructured insulation is developed in the manufacturing of large propulsion motors with game-changing torque density and payload efficiency for marine next-generation integrated power system.

[14] Jindong Huo, Yifei Wang, Yang Cao, “3D computational study of arc splitting during power interruption: the influence of metal vapor enhanced radiation on arc dynamics”, Journal of Physics D: Applied Physics, Vol.54, 085502 (18pp), https://doi.org/10.1088/1361-6463/abc64b, Oct.30, 2020.

[13] Chuanyang  Li, Tohid  Shahsavarian, Mohamadreza  Arab Baferani, Ningzhen  Wang, JoAnne  Ronzello, Yang  Cao, “High Temperature Insulation Materials for DC Cable Insulation-Part III: Degradation and Surface Breakdown”, IEEE Transactions on Dielectric and Electrical Insulation, Vol.28, pp.240-247, 2021.

[12] Tohid  Shahsavarian, Chuanyang  Li, Mohamadreza  Arab Baferani, JoAnne   Ronzello, Xin  Wu, Di  Zhang, Yang  Cao, “High Temperature Insulation Materials for DC Cable Insulation-Part II: Partial Discharge Behavior at Elevated Altitudes”,  IEEE Transactions on Dielectric and Electrical Insulation, Vol.28, pp.231-239, 2021.

[11] Mohamadreza  Arab Baferani, Chuanyang  Li, Tohid  Shahsavarian, JoAnne  Ronzello, Yang  Cao, “High Temperature Insulation Materials for DC Cable Insulation-Part I: Space Charge”, IEEE Transactions on Dielectric and Electrical Insulation, Vol.28, pp.223-230, 2021.

[10] Mattewos Tefferi, Mohamadreza Arab Baferani, Hiroaki Uehara, Yang Cao, “The Correlation and Balance of Material Properties for DC cable insulation at Design Field”, IEEE ACCESS, Vol.8, pp.187840-187847, Oct. 12, 2020. DOI: 10.1109/ACCESS.2020.3030005

[9] Zhousheng Zhang, Zheming Wang, Gilbert Teyssedre, Tohid Shahsavarian, Mohamadreza Arab Baferani, Geng Chen, Chuanjie Lin, Bo Zhang, Uwe Riechert, Zhipeng Lei, Yang Cao, Chuanyang Li, “Gas-solid Interface Charge Tailoring Techniques: What We Grasped and Where to Go”, Nanotechnology, Vol.32, 122001 (32pp), 2021. DOI: 10.1088/1361-6528/abccea

[8] Chao  Wu, Mohamadreza  Arab, JoAnne  Ronzello, Yang  Cao, “Charge Transport Dynamics and Space Charge Accumulation in XLPE Composites with 2D Platelet Fillers for HVDC Cable Insulation”, IEEE Transactions on Dielectric and Electrical Insulation, Vol.28, pp.3-10, 2021.

[7] Jindong Huo, JoAnne Ronzello, Alex Rontey, Yifei Wang, Linda Jacobs, Timothy Sommerer, Yang Cao, “Development of an arc root model for studying the electrode vaporization and its influence on arc dynamics”, AIP Advances, Vol.10, No.8, 085324, Aug. 31, 2020. DOI: 10.1063/5.0012159

[6] Deepak Kamal, Yifei Wang, Huan Tran, Lihua Chen, Zongze Li, Chao Wu, Shamima Nasreen, Yang Cao, Rampi Ramprasad, “Computable Bulk and Interfacial Electronic Structure Features as Proxies for Dielectric Breakdown of Polymers”, ACS Applied Materials & Interfaces, Vol.12, pp.37182-37187, 2020. DOI: 10.1021/acsami.0c09555.

[5] Yifei Wang, Zongze Li, Chao Wu, Yang Cao, “High-Temperature Dielectric Polymer Nanocomposites with Interposed Montmorillonite Nanosheets”, Chemical Engineering Journal, Vol.401, 126093, 2020. DOI: 10.1016/j.cej.2020.126093

[4] Tohid Shahsavarian, Yang Cao, Emmanouil Anagnostou, Roderick kalbfleisch, “Novel Modulated Equivalent Model of Point-to-Point LCC-based High Voltage AC/DC/AC System for Geomagnetic Storm-Induced Unbalanced Harmonic Studies”, International Journal of Electrical Power and Energy Systems, Vol.122, 106173, 2020. DOI: 10.1016/j.ijepes.2020.106173

[3] Lihua Chen, Chiho Kim, Rohit Batra, Jordan Lightstone, Chao Wu, Zongze Li, Ajinkya A. Deshmukh, Yifei Wang, Tran Huan, Priya Vashishta, Gregory Sotzing, Yang Cao, Rampi Ramprasad, “Frequency-dependent Dielectric Constant Prediction of Polymers using Machine Learning”, npj Computational Materials, vol.6, article 61, pp.1-9, 2020. DOI: 10.1038/s41524-020-0333-6

[2] Chao Wu, Ajinkya A. Deshmukh, Zongze Li, Lihua Chen, Abdullah Alamri, Yifei Wang, Rampi Ramprasad, Gregory A. Sotzing, Yang Cao, “Flexible temperature-invariant polymer dielectrics with large bandgap”, Advanced Materials, Vol.32, 2000499, 2020. Cover highlight. DOI: 10.1002/adma.202000499

[1] Zongze Li, Sneh K. Sinha, Gregory M. Treich, Yifei Wang, Qiuwei Yang, Ajinkya A. Deshmukh, Gregory A. Sotzing, Yang Cao, “All-Organic Flexible Fabric Antenna for Wearable Electronics”, Journal of Materials Chemistry C, Vol. 8, pp.5662-5667, 2020. Cover highlight. doi: 10.1039/DOTC00691B.

Graphical abstract: Inside front cover     Graphical abstract: All-organic flexible fabric antenna for wearable electronicsimage file: d0tc00691b-f3.tif

2019:

[5] Chao Wu, Zongze Li, Gregory M. Treich, Mattewos Tefferi, Riccardo Casalini, Rampi Ramprasad, Gregory A. Sotzing, Yang Cao, “The Dynamics of Dipolar Relaxation of the Modified Polythiourea with High Dielectric Constant”, Applied Physics Letters, Vol.115, pp.163901, 2019. doi: 10.1063/1.5123484.

[4] Jindong Huo , Svetlana Selezneva, Linda Jacobs, Yang Cao, “Study of Wall Ablation on Low-Voltage Arc Interruption: The effect of Stefan Flow”, Journal of Applied Physics, Vol.125, No.21, pp.213302(1-12), 2019. https://aip.scitation.org/doi/full/10.1063/1.5090867

[3] Zongze Li, Gregory M. Treich, Mattewos Tefferi, Chao Wu, Shamima Nasreen, Sydney K. Scheirey, Ramamurthy Ramprasad, Gregory A. Sotzing , Yang Cao, “High Energy Density and High Efficiency All-Organic Polymers with Enhanced Dipolar Polarization”, Journal of Materials Chemistry A, Vol.7, pp.15026-15030, 2019. Front cover highlight. https://doi.org/10.1039/C9TA03601F

Graphical abstract: Front cover       Graphical abstract: High energy density and high efficiency all-organic polymers with enhanced dipolar polarization

[2] Mattewos Tefferi, Zongze Li, Hiroaki Uehara, Qin Chen, Yang Cao, “Novel EPR Insulated DC Cables for Future Multi-terminal MVDC Integration”, IEEE Electrical Insulation Magazine, Vol.35, No.5, pp.20-27, 2019. Featured Article. DOI: 10.1109/MEI.2019.8804331

[1] Hiroaki Uehara, Shiya Iwata, Yasuo Sekii, Tatsuo Takada, Yang Cao ,  “Molecular Dynamics Simulation and Quantum Chemical Calculations of Surfactant Having Suppression Effect on Water Trees”, IEEJ Transactions on Fundamentals and Materials, Vol.139, pp.92-98, 2019. https://doi.org/10.1541/ieejfms.139.92

2018:

[7] S. Nasreen, M. Baczkowski, G. Treich,  M. Tefferi, C. Anastaia, R. Ramprasad,  Y. Cao, G. Sotzing,  “Sn‐Polyester/Polyimide Hybrid Flexible Free‐Standing Film as a Tunable Dielectric Material”, Macromolecular Rapid Communications, 1800679, Nov. 2018. DOI: 10.1002/marc.201800679

[6] L. Chen, R. Batra, R. Ranganathan, G. Sotzing, Y. Cao, R. Ramprasad, “Electronic Structure of Polymer Dielectrics: The Role of Chemical and Morphological Complexity”, Chemistry of Materials, Vol.30 (21), pp.7699-7706, 2018. DOI: 10.1021/acs.chemmater.8b02997

[5] Shamima Nasreen, Gregory M. Treich, Matthew L. Baczkowski, Arun K. Mannodi- Kanakkithodi, Aaron Baldwin, Sydney K. Scheirey, Yang  Cao, Ramamurthy Ramprasad, Gregory A. Sotzing,  “A Material Genome Approach towards Exploration of Zn- and Cd-Coordination Complex Polyester as Dielectrics: Design, Synthesis and Characterization”, Polymer, Elsevier, Vol.159, pp.95-105, 2018. DOI: 10.1016/j.polymer.2018.10.017

[4] Mattewos Tefferi, Mona   Ghassemi,  Christopher   Calebrese, Qin   Chen, Yang  Cao, “Characterizations of Solid-Liquid Interface in a Wet-Mate Subsea HVDC Connector”, Journal of Electrostatics, Elsevier, Vol.94, pp.51-59, 2018. DOI: 10.1016/j.elstat.2018.06.001

 Fig. 1Fig. 2

[3] Mattewos Tefferi, Mona   Ghassemi,  Christopher   Calebrese, Qin   Chen, Yang  Cao, “Correlation between current-voltage characteristics and DC field grading for dielectric liquid used in Wet-Mate DC Connector”, IEEE Transactions on Dielectric and Electrical Insulation, Vol.25, pp.1668 – 1678, 2018. DOI 10.1109/TDEI.2018.007015

[2] Boya  Zhang, Nenad  Uzelac, Yang  Cao, “Fluoronitrile/CO2 Mixture as an eco-friendly alternative to SF6 for medium voltage switchgears”, IEEE Transactions on Dielectric and Electrical Insulation, Vol.25, pp.1340 – 1350, 2018. DOI: 10.1109/TDEI.2018.007146

[1] M. Ghassemi, Y. Cao, Q. Chen, “A Thermo-Electrodynamic Electric Field Dependent Molecular Ionization Model to Design Electrical Insulation System of HVDC Wet-Mate Connectors under Transient Conditions”, IEEE Transactions on Dielectric and Electrical Insulation, Vol.25, pp.476-485, 2018. DOI: 10.1109/TDEI.2018.006691

2017:

[6] Shamima Nasreen, Gregory M. Treich, Matthew L. Baczkowski, Arun K. Mannodi-Kanakkithodi, Yang Cao, Ramamurthy Ramprasad, Gregory Sotzing, “Polymer Dielectrics for Capacitor Application”, Kirk-Othmer Encyclopedia of Chemical Technology, John Wiley & Sons, Inc., Published Online: 15 DEC 2017, DOI: 10.1002/0471238961.koe00036

[5] S. Gupta, I. Offenbach, J. Ronzello, Y. Cao, S. Boggs, R.A. Weiss and M. Cakmak, “Evaluation of Poly(4-methyl-1-pentene) as a Dielectric Capacitor Film for High Temperature Energy Storage Applications”, Journal of Polymer Science, Part B: Polymer Physics, Vol.55, pp. 1497-1515, 2017.

[4] Hiroaki Uehara, Zongze Li, Qin Chen, Gian Carlo Montanari,and Yang Cao, “Space Charge Behavior under Thermal Gradient in Cross-linked Polyethylene and Ethylene-propylene Rubber”, Sensors and Materials, Vol.29, No (8), pp.1199-1212, 2017.

[3] M. Ghassemi, Q. Chen, Y. Cao, “The Influence of Magnitude and Rise Time of Applied Voltage and the Type of Oil on Streamer Growth in a Wet-Mate DC Connector”, IEEE Transactions on Dielectric and Electrical Insulation, Vol. 24, Issue 3, pp. 1646-1656, June 2017.

[2] M. Ghassemi, M.B. Tefferi, Q. Chen, Y. Cao, “A Thermo-Electrodynamic Electric Field Dependent Molecular Ionization Model to Realize Positive Streamer Propagation in a Wet-Mate DC Connector”, IEEE Transactions on Dielectric and Electrical Insulation, Vol. 24, Issue 2, pp. 901-914, April 2017.

[1] Gregory M. Treich, Mattewos Tefferi, Shamima Nasreen, Arun Mannodi-Kanakkithodi, Zongze Li, Rampi Ramprasad, Gregory A. Sotzing and Yang Cao, “A Rational Co-Design Approach to the Creation of New Dielectric Polymers with High Energy Density”, IEEE Transactions on Dielectric and Electrical Insulation, Vol. 24, Issue 2, pp. 732-743, April 2017.

2016:

[8] Z.Z Li, C.C. Xu, H. Uehara, S.A. Boggs, Y. Cao, “Transient characterization of extreme field conduction in dielectrics”, AIP Advances, 6, 115025, 2016.

[7] Bogdan Neculaes, Antonio Caiafa, Yang Cao, Bruno De Man, Peter M. Edic, Kristopher Frutschy, Satish Gunturi, Lou Inzinna, Joseph Reynolds, Mark Vermilyea, David Wagner, Xi Zhang, Yun Zou, Norbert J. Pelc, and Brian Lounsberry, “Multisource inverse-geometry CT. Part II. X-ray source design and prototype” Medical Physics 43, 4617 (2016)

[6] Gregory Martin Treich, Shamima Nasreen, Arun Mannodi-Kanakkithodi, Rui Ma, Mattewos Tefferi, James Flynn, Yang Cao, Rampi Ramprasad, and Gregory Allen Sotzing, “Optimization of Organotin Polymers for Dielectric Applications” ACS Appl. Mater. Interfaces, DOI: 10.1021/acsami.6b04091

[5] P. Cox, R. Fleming, F. Krajick, S. Boggs, Y. Cao, “AC and Impulse Performance of Medium Voltage Ethylene Propylene– Rubber Cables With Over 25 Years of In-Service Aging in a Wet Underground Environment”, IEEE Electrical Insulation Magazine, Vol. 32, No.3, pp23-27,2016

[4] Mannodi-Kanakkithod , G.M. Treich, T.D. Huan, R. Ma, M. Tefferi, Y. Cao, G.A. Sotzing, R.Ramprasad, “Rational Co-Design of Polymer Dielectrics for Energy Storage”, Advanced Materials,  DOI: 10.1002/ adma.201600377, 2016

[3] G.A. Sotzing, Y. Cao, “Fabric sensor, method of making the fabric sensor, and applications thereof”, US Patent App. 15/135,895, 4/22/2016.

[2] US Patent 9,390,857, Issued on July 12, 2016, Film Capacitor

[1] US Patent 9,293,972, Issued on March 22, 2016, Apparatus for forming insulation for electrical components

2015:

[6] R. Ma,   V. Sharma,   A. F. Baldwin, M. Tefferi, I. Offenbach, M. Cakmak, R. Weiss, Y. Cao,   R. Ramprasad, G A. Sotzing “Rational Design and Synthesis of Polythioureas as Capacitor Dielectrics”, J. Mater. Chem. A, 2015 3 (28), 14845-14852, DOI: 10.1039/C5TA01252J

[5] A. F. Baldwin, T. D. Huan, R. Ma, A. M. Kanakkithodi, M. Tefferi, J. E. Marszalek, N. Katz, Y. Cao, R. Ramprasad, GA. Sotzing “Rational Design of Organotin Polyesters”, Macromolecules, 2015, 48 (8), pp 2422–2428

[4] A. F. Baldwin, R. Ma, A. M. Kanakkithodi, T. D. Huan, C. C. Wang, M. Tefferi, J. E. Marszalek, M. Cakmak, Y. Cao, R. Ramprasad, GA. Sotzing “Poly(dimethyltin glutarate) as a Prospective Material for Dielectric Applications”, Advanced Materials, 27, 347-351, 2015.

[3] Q.M. Zhang, M. Yu, Y. Cao, “Electrets and Related Phenomena”, IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 22, No. 3, pp.1335-1336, 2015.

[2] US Patent 8,928,441, Issued on January 6, 2015, Liquid cooled magnetic component with indirect cooling for high frequency and high power applications

[1] Sotzing, Y. Cao, “A FABRIC SENSOR, METHOD OF MAKING THE FABRIC SENSOR, AND APPLICATIONS THEREOF”, U.S. Provisional Application No. 62/151,623, April 23, 2015