LecturerTel：
Email：letian.dai@foxmail.com
IntroductionDr. Letian Dai is a Lecturer at the Center for Two-Dimensional Quantum Materials, School of Materials and Chemical Engineering, Hubei University of Technology. He received his Ph.D. in Optoelectronic Materials from Université Paris-Saclay, France, under the supervision of Prof. Pere Roca i Cabarrocas. He subsequently conducted postdoctoral research at Université Paris-Saclay and the Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology.
His research focuses on perovskite photovoltaic materials and devices, perovskite/silicon tandem solar cells, lead-free tin-based perovskites, indoor photovoltaics, self-powered IoT systems, and two-dimensional optoelectronic materials and devices. His work integrates fundamental materials research, device engineering, scalable fabrication, and technology translation. He has published research articles in journals including ACS Energy Letters, Chemical Engineering Journal, Small, and Journal of Materials Chemistry A, and holds several patents in photovoltaic and optoelectronic technologies. He has also received multiple awards in national and provincial innovation and entrepreneurship competitions.
Education ExperienceSep. 2016 – Dec. 2019: Ph.D. in Optoelectronic Materials, Université Paris-Saclay, France (Supervisor: Prof. Pere Roca i Cabarrocas)
Sep. 2014 – Jun. 2016: M.Sc. in Nanoscience, Université Paris-Saclay, France (Supervisor: Prof. Thierry Gacoin)
Sep. 2012 – Jun. 2014: B.Sc. in Physics, Université Claude Bernard Lyon 1, France
Sep. 2010 – Jun. 2014: B.Sc. in Physics, Wuhan University, China (2+2 Sino-French dual-degree international cooperation program)
Work ExperienceAug. 2026 – Present: Lecturer, Center for Two-Dimensional Quantum Materials, School of Materials and Chemical Engineering, Hubei University of Technology
Jul. 2021 – Jul. 2026: Postdoctoral Researcher, Assistant Researcher, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology (Supervisor: Prof. Mingkui Wang)
Jan. 2020 – Apr. 2021: Postdoctoral Fellow, Université Paris-Saclay, France (Supervisor: Prof. Jean-Paul Kleider)
Solid Mechanics
Condensed Matter Physics
Introduction to Solar Cells
Perovskite solar cells and modules, including defect passivation, stability enhancement, laser scribing, scalable fabrication, and their applications in indoor photovoltaics and self-powered IoT devices.
论文：
[1] 论文标题：Dipole-moment–guided ionic liquid passivation for efficient and stable CsSnI3 perovskite solar cells. 刊物名/卷（期）号：Chemical Engineering Journal, vol. 13，issue 6，p. 4167-4175. 发表日期：2026.02. 论文作者：Letian Dai, Zhiguo Zhang, Xiongjie Li, Haixuan Yu, Junyi Huang, Zhirong Liu, Yan Shen, Mingkui Wang*. 本人排名：第一作者. 影响因子：13.2. 中科院分区：一区(TOP).
[2] 论文标题：Moisture-resistant perovskite solar cells: the role of 1,1’-methylenebispyridinium dichloride in enhancing stability and performance. 刊物名/卷（期）号：Journal of Materials Chemistry A, vol. 13，issue 6，p. 4167-4175. 发表日期：2025.01. 论文作者：Yong Hu, Letian Dai*, Tianyu Sun, Haodan Shi, Ying Xu, Junyi Huang, Xiongjie Li, Yan Shen, Mingkui Wang*. 本人排名：第一共同通讯作者. 影响因子：9.5. 中科院分区：二区.
[3] 论文标题： Over 12% efficient CsSnI3 perovskite solar cells enabled by surface post-treatment with bi-functional polar molecules. 刊物名/卷（期）号：Chemical Engineering Journal, vol. 490，p.151561. 发表日期：2024.06. 论文作者：Zhiguo Zhang, Haixuan Yu, Junyi Huang, Zhirong Liu, Qiang Sun, Xiongjie Li, Letian Dai*, Yan Shen, Mingkui Wang*. 本人排名：第一共同通讯作者. 影响因子：13.2. 中科院分区：一区(TOP)， ESI 高被引.
[4] 论文标题：Three-terminal monolithic Perovskite/silicon tandem solar cell exceeding 29% power conversion efficiency. 刊物名/卷（期）号：ACS Energy Letters, vol. 8，issue 9，p. 3839-3842. 发表日期：2023.08. 论文作者：Letian Dai, Shangjing Li, Yong Hu, Junyi Huang, Zhirong Liu, Haodan Shi, Gaofei Guan, Yan Shen, Bin Hu*, Pere Roca i Cabarrocas, Mingkui Wang*. 本人排名：第一作者. 影响因子：19.3. 中科院分区：一区(TOP).
[5] 论文标题：Surface Modification in CsPb0.5Sn0.5I2Br Inorganic Perovskite Solar Cells: Effects of Bifunctional Dipolar Molecules on Photovoltaic Performance. 刊物名/卷（期）号：ACS Applied Materials & Interfaces, vol. 15，issue 30，p. 36594-36601. 发表日期：2023.07. 论文作者：Zhiguo Zhang, Letian Dai, Miaomiao Zhang, Huaxia Ban, Zhirong Liu, Haixuan Yu, Anjie Gu, Xiao-Li Zhang, Shuangyin Chen, Yin Wang, Yan Shen, Mingkui Wang*. 本人排名：共同第一作者. 影响因子：8.2. 中科院分区：二区.
[6] 论文标题：Single‐crystal nanowire cesium tin triiodide perovskite solar cell. 刊物名/卷（期）号：Small, vol. 19，issue 22，p. 2208062. 发表日期：2023.06. 论文作者：Letian Dai, Pere Roca i Cabarrocas, Huaxia Ban, Zhiguo Zhang, Qiang Sun, Xiongjie Li, Anjie Gu, Wanpeng Yang, Haixuan Yu, Yan Shen, Mingkui Wang*. 本人排名：第一作者. 影响因子：13. 中科院分区：二区（TOP）.
[7] 论文标题：Fabrication of High‐Quality CsPbI3 Perovskite Films with Phosphorus Pentachloride Additive for Highly Stable Solar Cells. 刊物名/卷（期）号：ChemSusChem, vol. 16，issue 3，p. e202202061. 发表日期：2023.02. 论文作者：Wanpeng Yang, Haixuan Yu, Letian Dai*, Zhiguo Zhang, Anjie Gu, Huaxia Ban, Qiang Sun, Shuangyin Chen, Yan Shen, Mingkui Wang*. 本人排名：第一共同通讯作者. 影响因子：7.8. 中科院分区：二区.
1. Outstanding Postdoctoral Award, Hubei Postdoctoral Innovation and Entrepreneurship Competition (January 2023； Hubei Provincial Department of Human Resources and Social Security)
2. Second Prize, Finals of the 3rd Wuhan "Hero Cup" Innovation and Entrepreneurship Competition (Project Leader, July 2024； Wuhan Municipal Bureau of Human Resources and Social Security)
3. Silver Award, Finals of the 11th China Youth "Create Youth" Innovation and Entrepreneurship Competition (Project Leader, October 2024； National Organizing Committee of "Create Youth" Competition of the Communist Youth League Central
Committee)
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