Dopant-free 3,3′-bithiophene derivatives as hole transport materials for perovskite solar cells
Dopant-free 3,3′-bithiophene derivatives as hole transport materials for perovskite solar cells
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DOI：
10.1039/c6ta00032k
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发表时间：
2016-01-01
影响因子：
11.9
通讯作者：
Tu, Guoli
中科院分区：
文献类型：
--
作者：
Gong, Genfei;Zhao, Ning;Tu, Guoli
Three 3,3'-bithiophene derivatives (DHPT-SC, DOPT-SC and DEPT-SC) have been efficiently synthesized by a Stille reaction. X-ray diffraction analysis revealed unique swivel-cruciform configurations and weak intermolecular pi-pi stacking in these materials. Perovskite solar cells using these pristine hole transport materials without dopants have achieved power conversion efficiencies of 8.35%, 8.69%, and 9.73% with good air stability. This present finding develops dopant-free hole transport materials for perovskite solar cells.
