Integrated molecular, interfacial, and device engineering towards high-performance non-fullerene based organic solar cells.

Zang, Yue; Li, Chang-Zhi; Chueh, Chu-Chen; Williams, Spencer T; Jiang, Wei; Wang, Zhao-Hui; Yu, Jun-Sheng; Jen, Alex K-Y · Adv Mater · 2014

basic_science · Level V

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Abstract

High-performance non-fullerene OSCs with PCEs of up to ca. 6.0% are demonstrated based on PBDTT-F-TT polymer and a molecular di-PBI acceptor through comprehensive molecular, interfacial, and device engineering. Impressive PCEs can also be retained in devices with relatively thick BHJ layer and processed through non-halogenated solvents, indicating these high-performance non-fullerene OSCs are promising for large-area printing applications.