Recently, Yao Wang, Yanming Wang and Yixin Zhao of the Future Photovoltaics Research Center, GIFT, Shanghai Jiaotong University, published a breakthrough study “A Soft Nonpolar-Soluble Two-Dimensional Perovskite for General Construction of Mixed-Dimensional Heterojunctions” in Advanced Materials, one of the leading international journals in materials science. For the first time, this study reports a soft 2D lead iodide perovskite (TPA₂PbI₄) based on tetraphenyl-ammonium iodide (TPAI) and demonstrates its unique potential for application in perovskite photovoltaics. They found that this material can efficiently construct mixed-dimensional perovskite heterojunctions with controllable thicknesses, thereby suppressing non-radiative composites and facilitating charge carrier transport on all FA-, MA-, and CsPbI3 perovskite solar cells. The strategy is also applicable to scale-up fabrication and has been validated in 30 cm × 30 cm FAPbI₃ perovskite submodules with certified efficiencies up to 22.06%.
The paper proposes a universal and controllable mixed-dimensional heterostructure building strategy by designing nonpolar soluble TPA₂PbI₄. This heterostructure solves the difficulties of solvent destruction and uncontrollable reaction in the traditional method. Not only did the material significantly improve the photovoltaic performance and stability of a variety of perovskite systems, but it is also successfully applied to large-area module fabrication, which provides a new idea for the commercialization of perovskite photovoltaics.
In the future, the research team will further optimize the molecular engineering of TPA₂PbI₄, explore its application potential in flexible devices and laminated cells, and promote the widespread application of green solvent systems in industrialization to help the sustainable development of perovskite photovoltaics。
Introducation of Future Photovoltaics Research Center
GIFT Future Photovoltaics Research Center is dedicated to solving the fundamental problems in the research of perovskite photovoltaic. We strive to achieve high efficiency, high stability, and high reproducibility of perovskite solar cells, which we promote to become a future clean energy technology with wide applicability. Starting from the fundamental scientific principles that underpin the stability and reliability of perovskite, we develop and apply cutting-edge characterization means, advanced simulation theories, artificial intelligence models and cutting-edge manufacturing processes. Our goal is to propose new ideas, methods and processes that lead to creation of highly efficient and stable perovskite solar cells, achieving a breakthrough in the multi-dimensional aspects, including mechanisms, materials, and devices. We warmly welcome talents from home and abroad to work together and promote the innovation and development of future photovoltaics technology.
Personage introduction
Yao Wang is an assistant researcher at the Future Photovoltaics Research Center, GIFT, Shanghai Jiao Tong University. He received his Ph.D. degree from the Institute of Functional Nano and Soft Material of Soochow University (FUNSOM), and conducted his postdoctoral research at the School of Environmental Science and Engineering, Shanghai Jiao Tong University, focusing on the development and application of high-performance chalcogenide solar cells. He has published more than 30 papers in top international journals such as Nature, Joule, Adv. Mater. and JACS.
Yanming Wang is an Associate Professor and Executive Director of Future Photovoltaic Research Center at GIFT, Shanghai Jiao Tong University. He received his Ph.D. from Stanford University and was a postdoctoral fellow at the Massachusetts Institute of Technology. His research focuses on multi-scale simulation and artificial intelligence technology for advanced energy materials. Wang has published more than 60 papers in Science, Nature Communications, Science Advances and other international top journals, and served as an editorial board member of Journal of Energy Chemistry and other academic positions.
Yixin Zhao is a Distinguished Professor and the Director of the Future Photovoltaic Research Center of GIFT, Shanghai Jiao Tong University. He received his B.S. and M.S. degrees from Shanghai Jiao Tong University in 2002 and 2005, respectively, and his Ph.D. degree from Case Western Reserve University in 2010. Zhao conducted postdoctoral research at Penn State University and National Renewable Energy Laboratory from 2010-2013 and joined Shanghai Jiao Tong University in 2013. He has been awarded the National Young Distinguished Expert, the Ministry of Education's Fok Ying Tung Education Foundation, the Shanghai Shuguang Scholar, the Shanghai Outstanding Young Academic Leader, and the National Outstanding Youth Science Foundation. He has published more than 200 papers in renowned journals such as Science, Nat Sustain, Sci Adv, Nat Commun, JACS, Angew Chem, Chem Soc Rev, Joule, EES, ES&T, etc., with more than 18,000 citations in Web of Science, and has been selected as a Highly Cited Researcher for six consecutive years since 2018.He also serves as the associate editor of Journal of Energy Chemistry and editorial board member of several journals, including Acta Chimica Sinica and The Journal of Physical Chemistry Letters.
