High Efficient Hole Extraction and Stable All‐Bromide Inorganic Perovskite Solar Cells via Derivative‐Phase Gradient Bandgap Architecture

Solar RRL ◽  
2019 ◽  
Vol 3 (5) ◽  
pp. 1900030 ◽  
Author(s):  
Guoqing Tong ◽  
Taotao Chen ◽  
Huan Li ◽  
Wentao Song ◽  
Yajing Chang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Phase Gradient ◽  
Inorganic Perovskite ◽  
High Efficient

scholarly journals Ba-induced phase segregation and band gap reduction in mixed-halide inorganic perovskite solar cells

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Wanchun Xiang ◽  
Zaiwei Wang ◽  
Dominik J. Kubicki ◽  
Xueting Wang ◽  
Wolfgang Tress ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Perovskite Phase ◽  
Perovskite Solar Cells ◽  
Phase Segregation ◽  
Band Gap Energy ◽  
Open Circuit ◽  
High Power Conversion Efficiency ◽  
Inorganic Perovskite ◽  
High Efficient

Abstract All-inorganic metal halide perovskites are showing promising development towards efficient long-term stable materials and solar cells. Element doping, especially on the lead site, has been proved to be a useful strategy to obtain the desired film quality and material phase for high efficient and stable inorganic perovskite solar cells. Here we demonstrate a function by adding barium in CsPbI2Br. We find that barium is not incorporated into the perovskite lattice but induces phase segregation, resulting in a change in the iodide/bromide ratio compared with the precursor stoichiometry and consequently a reduction in the band gap energy of the perovskite phase. The device with 20 mol% barium shows a high power conversion efficiency of 14.0% and a great suppression of non-radiative recombination within the inorganic perovskite, yielding a high open-circuit voltage of 1.33 V and an external quantum efficiency of electroluminescence of 10−4.

A thiourea additive-based quadruple cation lead halide perovskite with an ultra-large grain size for efficient perovskite solar cells

Nanoscale ◽  
2019 ◽  
Vol 11 (45) ◽  
pp. 21824-21833 ◽  
Author(s):  
Jyoti V. Patil ◽  
Sawanta S. Mali ◽  
Chang Kook Hong
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Inorganic Perovskite ◽  
Halide Perovskite ◽  
Lead Halide

Controlling the grain size of the organic–inorganic perovskite thin films using thiourea additives now crossing 2 μm size with >20% power conversion efficiency.

scholarly journals Implementing Dopant-Free Hole-Transporting Layers and Metal-Incorporated CsPbI2Br for Stable All-Inorganic Perovskite Solar Cells

2021 ◽  
Vol 6 (2) ◽  
pp. 778-788
Author(s):  
Sawanta S. Mali ◽  
Jyoti V. Patil ◽  
Julian A. Steele ◽  
Sachin R. Rondiya ◽  
Nelson Y. Dzade ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Free Hole ◽  
Inorganic Perovskite ◽  
Hole Transporting

Control over Light Soaking Effect in All‐Inorganic Perovskite Solar Cells

2021 ◽  
pp. 2101287
Author(s):  
Xiao Wu ◽  
Junjie Ma ◽  
Minchao Qin ◽  
Xinlu Guo ◽  
Yuhao Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Inorganic Perovskite

Lead acetate precursors for preparing CsPbI3 light harvester layers of inorganic perovskite solar cells

Solar Energy ◽  
2021 ◽  
Vol 222 ◽  
pp. 212-218
Author(s):  
Honggang Xie ◽  
Jiannan Xu ◽  
Can Gao ◽  
Jiejing Zhang ◽  
Chunxiao Gao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Lead Acetate ◽  
Perovskite Solar Cells ◽  
Inorganic Perovskite
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