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ZHANG Hengkai 張恒愷

ZHANG Hengkai / Research Assistant Professor

PHONE: (852) 3943 6392

OFFICE: Room 216A, 2/F, Science Centre North Block

ORCID: 0000-0003-0812-9493


  • PhD, The Hong Kong Polytechnic University, 2021
  • Msc, The Chinese University of Hong Kong, 2014
  • BSc, Shandong University of Architecture and Engineering, 2013


  • 2024-now, Research Assistant Professor, Department of Physics, The Chinese University of Hong Kong
  • 2021-2024, Postdoctoral Fellow, Department of Applied Physical Sciences, The University of North Carolina at Chapel Hill, USA

Research Interests

  • Perovskite optoelectronics

Honours and Awards

  • Grand Prize in the Innovation Category and the First Prize at the 7th Hong Kong University Student Innovation and Entrepreneurship Competition

Selected Recent Publications

  • Zhang, H., Ren, Z., Liu, K., Qin, M., Wu, Z., Shen, D., … & Li, G. (2022). Controllable Heterogenous Seeding‐Induced Crystallization for High‐Efficiency FAPbI3‐Based Perovskite Solar Cells Over 24%. Advanced Materials, 34(36), 2204366.
  • Zhang, H., Yu, W., Guo, J., Xu, C., Ren, Z., Liu, K., … & Li, G. (2022). Excess PbI2 Management via Multimode Supramolecular Complex Engineering Enables High‐Performance Perovskite Solar Cells. Advanced Energy Materials, 2201663.
  • Zhang, H., Qin, M., Chen, Z., Yu, W., Ren, Z., Liu, K., … & Li, G. (2021). Bottom‐Up Quasi‐Epitaxial Growth of Hybrid Perovskite from Solution Process—Achieving High‐Efficiency Solar Cells via Template‐Guided Crystallization. Advanced Materials, 2100009.
  • Zhang, H., Chen, Z., Qin, M., Ren, Z., Liu, K., Huang, J., … & Li, G. (2021). Multifunctional crosslinking‐enabled strain‐regulating crystallization for stable, efficient α‐FAPbI3‐based perovskite solar cells. Advanced Materials, 33(29), 2008487.