Dithienopicenocarbazole-Based Acceptors for Efficient Organic Solar Cells with Optoelectronic Response Over 1000 nm and an Extremely Low Energy Loss

作者：Yao, Zhaoyang; Liao, Xunfan; Gao, Ke; Lin, Francis; Xu, Xiaobao; Shi, Xueliang; Zuo, Lijian; Liu, Feng^*; Chen, Yiwang^*; Jen, Alex K-Y.^*

来源：Journal of the American Chemical Society, 2018, 140(6): 2054-2057.

DOI：10.1021/jacs.7b13239

• NON-FULLERENE ACCEPTOR
• NARROW-BAND-GAP
• HIGH-PERFORMANCE
• NONFULLERENE ACCEPTOR
• ELECTRON-ACCEPTORS
• POLYMER
• PHOTOVOLTAICS
• SEPARATION
• ADDITIVES
• DENSITY

Two cheliforrn non-fullerene acceptors, DTPC-IC and DTPC-DFIC, based on a highly electron-rich core, dithienopicenocarbazole (DTPC), are synthesized, showing ultra-narrow bandgaps (as low as 1.21 eV). The two-dimensional nitrogen-containing conjugated DTPC possesses strong electron-donating Capability, which induces intense intramolecular charge transfer and intermolecular pi-pi stacking hi derived acceptors. The solar cell based on DTPC-DFIC and a spectrally complementary polymer donor, PTB7-Th, showed a high power conversion efficiency of 10.21% and an extremely low energy loss of 045 eV, which is the lowest among reported efficient OSCs.

• 出版日期2018-2-14
• 单位南昌大学; 上海交通大学