[23p-22C-1~12] 12.5 Organic and hybrid solar cells

3:00 PM - 3:15 PM JST(6:00 AM - 6:15 AM UTC)

[23p-22C-8] Transport and Extraction of Photoexcited Charge Carriers in Tin-Based Perovskites

〇Dong Liu¹, Yusheng Li¹, Dandan Wang¹, Liang Wang¹, Jiaqi Liu¹, Shuzi Hayase¹, Qing Shen¹ (1.Univ. of Electro-commun.)

Keywords:

Tin perovskite,Cairrer Dynamics,Carrier Diffusion Length

This study fabricated two types of tin perovskite(Sn-PVK) bilayer structures, Sn-PVK/ICBA, and Sn-PVK/C60, and investigated the transport and extraction of photoexcited charge carriers in Sn-PVK. Based on the simulations of results of Photoluminescence decays, the extraction velocity for ICBA and C60 and electron diffusion length of Sn-PVK were estimated. It was found that the electron diffusion length is greater than the thickness of the Sn-PVK thin film. Therefore, for the improvement of Sn-PVK solar cells, the optimization of charge carrier extraction is very important.