Enhanced Stability of Organic Photovoltaics by Additional ZnO Layers on Rippled ZnO Electron-collecting Layer using Atomic Layer Deposition

Bulletin of the Korean chemical society

Dong Chan Lim¹  Myung-Geun Jeong¹  Hyun Ook Seo¹  Jae-Hong Lim¹  Youngsup Song¹  Shinuk Cho¹  Bo Yeol Seo¹  Young Dok Kim¹  Joo Yul Lee¹  Kwang-Dae Kim¹ 

关键词: Organic photovoltaic;    ZnO;    Surface defect;    Stability;    Atomic layer deposition;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

We fabricated organic photovoltaic (OPV) based on ZnO ripple structure on indium tin oxide as electroncollecting layers and PTB7-F20 as donor polymer. In addition, atomic layer deposition (ALD) was used for preparing additional ZnO layers on rippled ZnO. Addition of 2 nm-thick ALD-ZnO resulted in enhanced initial OPV performance and stability. Based on photoluminescence results, we suggest that ALD-ZnO layers reduced number of surface defect sites on ZnO, which can act as electron-hole recombination center of OPV, and increased resistance of ZnO towards surface defect formation.

【 授权许可】

Unknown