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Updated: Apr 14, 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
Small-bandgap polymer solar cells with unprecedented short-circuit current density and high fill factor
Hyosung Choi1, Seo-Jin Ko2, Taehyo Kim2
1Department of Chemistry, College of Natural Sciences, Hanyang University, Seoul, 133-791, South Korea.
Abstract:
Small-bandgap polymer solar cells (PSCs) with a thick bulk heterojunction film of 340 nm exhibit high power conversion efficiencies of 9.40% resulting from high short-circuit current density (JSC ) of 20.07 mA cm(-2) and fill factor of 0.70. This remarkable efficiency is attributed to maximized light absorption by the thick active layer and minimized recombination by the optimized lateral and vertical morphology through the processing additive.
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