Investigation of bulk hybrid heterojunction solar cells based on Cu(In,Ga)Se2 nanocrystals

Yu-Ting Yen; Yi-Kai Lin; Shu-Hao Chang; Hwen-Fen Hong; Hsing-Yu Tuan; Yu-Lun Chueh

doi:10.1186/1556-276X-8-329

Investigation of bulk hybrid heterojunction solar cells based on Cu(In,Ga)Se2 nanocrystals

Nanoscale Res Lett. 2013 Jul 19;8(1):329. doi: 10.1186/1556-276X-8-329.

Authors

Yu-Ting Yen¹, Yi-Kai Lin, Shu-Hao Chang, Hwen-Fen Hong, Hsing-Yu Tuan, Yu-Lun Chueh

Affiliation

¹ Department of Materials Science & Engineering, National Tsing Hua University, No, 101, Sec, 2, Kuang-Fu Rd,, Hsinchu 30013, Taiwan. hytuan@che.nthu.edu.tw.

Abstract

This work presents the systematic studies of bulk hybrid heterojunction solar cells based on Cu(In, Ga)Se2 (CIGS) nanocrystals (NCs) embedded in poly(3-hexylthiophene) matrix. The CIGS NCs of approximately 17 nm in diameter were homogeneously blended with P3HT layer to form an active layer of a photovoltaic device. The blend ratios of CIGS NCs to P3HT, solvent effects on thin film morphologies, interface between P3HT/CIGS NCs and post-production annealing of devices were investigated, and the best performance of photovoltaic devices was measured under AM 1.5 simulated solar illumination (100 mW/cm2).