非阻塞I/O
光伏
钙钛矿(结构)
材料科学
纳米技术
能量转换效率
光伏系统
工程物理
光电子学
工程类
化学
电气工程
化学工程
催化作用
生物化学
作者
Diego Di Girolamo,Francesco Di Giacomo,Fabio Matteocci,Andrea Giacomo Marrani,Danilo Dini,Antonio Abate
出处
期刊:Chemical Science
[The Royal Society of Chemistry]
日期:2020-01-01
卷期号:11 (30): 7746-7759
被引量:122
摘要
The power conversion efficiency (PCE) of NiO based perovskite solar cells has recently hit a record 22.1% with a hybrid organic-inorganic perovskite composition and a PCE above 15% in a fully inorganic configuration was achieved. Moreover, NiO processing is a mature technology, with different industrially attractive processes demonstrated in the last few years. These considerations, along with the excellent stabilities reported, clearly point towards NiO as the most efficient inorganic hole selective layer for lead halide perovskite photovoltaics, which is the topic of this review. NiO optoelectronics is discussed by analysing the different doping mechanisms, with a focus on the case of alkaline and transition metal cation dopants. Doping allows tuning the conductivity and the energy levels of NiO, improving the overall performance and adapting the material to a variety of perovskite compositions. Furthermore, we summarise the main investigations on the NiO/perovskite interface stability. In fact, the surface of NiO is commonly oxidised and reactive with perovskite, also under the effect of light, thermal and electrical stress. Interface engineering strategies should be considered aiming at long term stability and the highest efficiency. Finally, we present the main achievements in flexible, fully printed and lead-free perovskite photovoltaics which employ NiO as a layer and provide our perspective to accelerate the improvement of these technologies. Overall, we show that adequately doped and passivated NiO might be an ideal hole selective layer in every possible application of perovskite solar cells.
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