Translator Disclaimer
1 March 2019 Environmentally friendly approach via solvent-free processed perovskite solar cells
Author Affiliations +
Proceedings Volume 10919, Oxide-based Materials and Devices X; 109191K (2019)
Event: SPIE OPTO, 2019, San Francisco, California, United States
Perovskite solar cells have been rapidly developed owning to their simple fabrication procedures, low cost and high efficiency. Currently, record efficiency of perovskite solar cells on rigid substrates exceeds 20%. In general, solution process is used to synthesis the perovskite layer, i.e. MAPbI3. Although solution process is direct and simple, significant usage of organic solvent like chlorobenzene, which is used as anti-solvent during one-step solution process, is not environmentally friendly. In addition, solution processing at low temperatures results in small average grain sizes and poor crystallinity. Furthermore, the film morphology and properties are strongly dependent on fabrication conditions, and the presence of solvent vapor in the glovebox can significantly affect the repeatability and the reproducibility of the perovskite film properties, and consequently the solar cell performance. Thus, it is desirable to develop solvent-free process for the preparation of the perovskite film, different from vapour-deposition processes which would increase perovskite fabrication cost. Such a solvent-free processed perovskite film may lead to not only better efficiency with better film quality, but also more reproducible and greener fabrication process. Approaches of using solid state reaction between PbI2 and MAI will be focused to fabricate MAPbI3 films. After optimization of the solvent-free fabrication process, solar devices for both solvent-free and solution processed were fabricated for efficiency comparison.
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ho Won Tam, Fangzhou Liu, Tik Lun Leung, Alan M. C. Ng, Aleksandra B. Djurišić, and W. K. Chan "Environmentally friendly approach via solvent-free processed perovskite solar cells ", Proc. SPIE 10919, Oxide-based Materials and Devices X, 109191K (1 March 2019); doi: 10.1117/12.2508209;


Indium oxide-based perovskite solar cells
Proceedings of SPIE (February 26 2016)
Effect of buffer layers on the performance of P3HT PCBM...
Proceedings of SPIE (November 16 2010)

Back to Top