title: Combination of indene-C60 bis-adduct and cross-linked fullerene interlayer leading to highly efficient inverted polymer solar cells.
abstract: A poly(3-hexylthiophene) (P3HT)-based inverted solar cell using indene-C60 bis-adduct (ICBA) as the acceptor achieved a high open-circuit voltage of 0.82 V due to ICBA's higher-lying lowest unoccupied molecular orbital level, leading to an exceptional power-conversion efficiency (PCE) of 4.8%. By incorporating a cross-linked fullerene interlayer, C-PCBSD, to further modulate the interface characteristics, the ICBA:P3HT-based inverted device exhibited an improved short-circuit current and fill factor, yielding a record high PCE of 6.2%.
authors.affiliation: Department of Applied Chemistry, National Chiao Tung University, 1001 Ta Hseuh Road, Hsin-Chu, 30010 Taiwan. yjcheng@mail.nctu.edu.tw
authors.forename: Yen-Ju
authors.initials: YJ
authors.lastname: Cheng
authors.forename: Chao-Hsiang
authors.initials: CH
authors.lastname: Hsieh
authors.forename: Youjun
authors.initials: Y
authors.lastname: He
authors.forename: Chain-Shu
authors.initials: CS
authors.lastname: Hsu
authors.forename: Yongfang
authors.initials: Y
authors.lastname: Li