期刊
NANO ENERGY
卷 41, 期 -, 页码 469-475出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nanoen.2017.09.035
关键词
Stability; Thiophene; Hole transporting materials; Perovskite solar cell
类别
资金
- National Key R & D Program of China [2016YFB0401303]
- National Natural Science Foundation of China [21676188]
- Key Projects in Natural Science Foundation of Tianjin [16JCZDJC37100]
- China Scholarship Council
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- King Abdulaziz City for Science and Technology (KACST)
- Swiss National Science Foundation under Scientific & Technological Cooperation Program Switzerland-Russia [IZLRZ2_164061, 687008]
- Swiss National Science Foundation under NRP 70 Energy Turnaround, the European Union's Horizon programme through a FET Open research and innovation action [IZLRZ2_164061, 687008]
- Swiss National Science Foundation (SNF) [IZLRZ2_164061] Funding Source: Swiss National Science Foundation (SNF)
The exploration of alternative low-cost molecular hole-transporting materials (HTMs) for both highly efficient and stable perovskite solar cells (PSCs) is a relatively new research area. Two novel HTMs using the thiophene core were designed and synthesized (Z25 and Z26). The perovskite solar cells based on Z26 exhibited a remarkable overall power conversion efficiency (PCE) of 20.1%, which is comparable to 20.6% obtained with spiroOMeTAD. Importantly, the devices based-on Z26 show better stability compared to devices based on Z25 and spiroOMeTAD when aged under ambient air of 30% or 85% relative humidity in the dark and under continuous full sun illumination at maximum power point tracking respectively. The presented results demonstrate a simple strategy by introducing double bonds to design hole-transporting materials for highly efficient and stable perovskite solar cells with low cost, which is important for commercial application.
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