面向新能源汽车、电力电子、航空航天和宽禁带半导体功率器件等领域对高温、高功率密度电容储能的迫切需求，课题组围绕聚合物电介质在高温高场下易发生漏导损耗增加、击穿强度下降和充放电效率衰减等关键问题，长期开展聚合物复合电介质高温储能材料与器件研究。研究依托“填料设计—界面工程—结构优化—电荷调控”的多尺度协同设计思路，重点解决介电常数、击穿场强和高温储能效率难以同步提升的瓶颈问题。课题组通过均一尺度高 k 铁电纳米填料设计，实现极化增强与局域电场畸变缓解；发展二维宽带隙纳米片、核壳包覆和多级异质界面工程，构筑高绝缘阻挡界面和深陷阱网络，抑制高温高场下载流子注入、迁移与击穿发展；进一步结合多层结构、填料定域分布和全有机分子半导体共混策略，调控空间电荷分布、界面极化和局域电场，实现高储能密度、高效率和高温稳定性的协同提升。相关研究建立了从微纳填料结构、界面电子结构、载流子输运行为到宏观储能性能之间的关联机制，为高温薄膜电容器、柔性储能器件和高可靠功率电子系统中的先进聚合物电介质国产化应用提供材料基础与理论支撑。
近年代表作:
1、Yang Liu, Zhenjun Shao, Jin Qian, Tiezhu Guo, Jian Bao, Diming Xu, Weichen Zhao, Zhentao Wang, Zilin Huang, Jiajia Ren, Jinnan Liu, Ziyang Liu, Jiwei Zhai*, Yao Zhou*, Zenghui Liu*, Tao Zhou*, Guiwei Yan, Jinzhan Su, Wenyuan Liu, Wenfeng Liu*, Jordi Jacas, Joan Ramon Morante Lleonart, Andreu Cabot, and Di Zhou,* Multilevel Heterointerface Engineering Breaks the Trap-Barrier Trade-Off in High-Energy-Density Polymer Dielectrics, Advanced Materials, 2026, 38[16], e17624.
2、Tao Liu, Yang Liu, Jin Qian, Jiwei Zhai,* Tao Zhou, Yao Zhou, Di-Ming Xu, Wenfeng Liu, and Di Zhou*, Enhanced Energy Storage Performance Through Electron-Hole Pair Formation in Polymer Matrices Doped with P-Type Molecular Semiconductor, Advanced Functional Materials, 2026, 36[6], e16202.
3、Yan Guo, Weichen Zhao, Da Li, Jinnan Liu, Jin Qian, Lixia Pang,* Tao Zhou, Wenfeng Liu,* Zhaobo Liu, Houbing Huang,* Jiwei Zhai, and Di Zhou,* Ultra-high Capacitive Energy Storage Density at 150 °C Achieved in Polyetherimide Composite Films by Filler and Structure Design, Advanced Materials, 2025, 37 [6], 2415652.
4、Ying Han, Xiao Li*, Yang Liu, Jin Qian, Jianjun Liu, Diming Xu, Weichen Zhao, Haowei Zhou, Jiwei Zhai*, Tao Zhou*, Yao Zhou, Wenfeng Liu*, Di Zhou*, Superior dielectric energy storage performance at elevated temperatures enabled by precisely tailored MgO NPLs distribution in tri-layer polymer composites, Nano Energy, 2026, 147, 111587.
5、Tao Liu, Jianjun Liu, Yang Liu, Jin Qian, Jiwei Zhai, Yao Zhou*, Tao Zhou, Gui-Wei Yan, Di-Ming Xu, Kar Ban Tan*, Wenfeng Liu, Di Zhou,*Interlayer-directed multilevel trap engineering for enhanced energy storage in PET dielectric films, Nano Energy, 2026, 147, 111613.