E-viri
Recenzirano
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Yao, Zhaoyang; Liao, Xunfan; Gao, Ke; Lin, Francis; Xu, Xiaobao; Shi, Xueliang; Zuo, Lijian; Liu, Feng; Chen, Yiwang; Jen, Alex K.-Y
Journal of the American Chemical Society, 02/2018, Letnik: 140, Številka: 6Journal Article
Two cheliform 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 π–π stacking in 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 0.45 eV, which is the lowest among reported efficient OSCs.
