Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV18)
DOI: https://doi.org/10.29363/nanoge.hopv.2018.128
Publication date: 21st February 2018
Halide Perovskite has excited the solar cell community by the quick rise of photoconversion efficiency to certified values close to 23%. Such outstanding behavior is based on, among other, in a low non-radiative recombination, making this family of materials attractive not just for photovoltaic devices but for other optolectronic devices as LEDs and lasers. Since the seminal works of Pérez-Prieto and Kovalenko, and coworkers, it can be observed even a further enhancement of the optical properties of this materials with photoluminescence quantum yields (PLQY) close to 100%, with nanoparticles prepared with easy procedures and without any core/shell structure. In thi presentation I will shown the recent results of my group on the preparation, study and characterization of halide perovskite nanoparticles with partial substitution of Pb by Sn, where Sn2+ cation is stabilized obtaining stable nanoparticles with outstanding optical properties. I will show the use of these halide perovskite nanocrystals in solar cells and LED devices, studying the contact effect on cell performance. Nanocrystals have been also electrochemically analyzed opening also a field for their use in alternative applications.