[9p-E201-1~16] 12.5 Organic, Perovskite, and hybrid solar cells

4:00 PM - 4:15 PM JST(7:00 AM - 7:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[9p-E201-10] Catechin-Modified ZnO Electron Transport Layers for Suppressing Active-Layer Degradation and Enhancing the Performance of Inverted Organic Photovoltaics

〇Hirochika Tanaka^1,2, Yutaro Ono^1,2, Yoichi Yamada¹, Kouki Akaike² (1.Univ. of Tsukuba, 2.AIST)

Keywords:

ZnO,Catechin,OPV

Zinc oxide (ZnO) is widely used as an electron transport layer in inverted organic photovoltaics; however, it generates reactive oxygen species under ultraviolet irradiation, which promotes the degradation of non-fullerene acceptors (NFAs). In this study, the ZnO surface was modified with catechin, and the suppression of degradation of BTP-eC9, an NFA, was confirmed. In addition, the short-circuit current density and power conversion efficiency were improved, and the improvement in charge collection efficiency is considered to be the cause of these improvements.