塗布型ペロブスカイト薄膜の熱電特性

抄録

The discovery of hybrid perovskite can lead to the net-generation energy conversion platforms due to ultra-low thermal conductivity and large Seebeck coefficient. However, optimization of enhanced electrical conductivity is still challenging. In this work, we study growth parameters and thermoelectric properties of a coated CsSnI₃ perovskite thin film. We investigated the effects of mixing time, heating temperature and heating time on the properties of a perovskite film. We measured thermoelectric properties near room temperature and found that growth parameters influence the crystal grain size further the value of figure of merit. Our results shows that the best ZT about 0.086 at room temperature for sample with solvent mixing time about 5 h, heating temperature about 100°C and heating time is 10 min. These result and analysis are preliminary. In future, our plan is to optimize the growth parameters such as spin coating conditions, heating temperature and time to enhance the value of ZT.