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Updated: Jun 6, 2026

Morphology Control for Fully Printable Organic–Inorganic Bulk-heterojunction Solar Cells Based on a Ti-alkoxide and Semiconducting Polymer
Published on: January 10, 2017
Combination of indene-C60 bis-adduct and cross-linked fullerene interlayer leading to highly efficient inverted
Yen-Ju Cheng1, Chao-Hsiang Hsieh, Youjun He
1Department of Applied Chemistry, National Chiao Tung University, 1001 Ta Hseuh Road, Hsin-Chu, 30010 Taiwan. yjcheng@mail.nctu.edu.tw
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%.
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