Synergistic effects of thiocyanate additive and cesium cations on improving the performance and initial illumination stability of efficient perovskite solar cells

2018 ◽  
Vol 2 (11) ◽  
pp. 2435-2441 ◽  
Author(s):  
Changlei Wang ◽  
Zhaoning Song ◽  
Yue Yu ◽  
Dewei Zhao ◽  
Rasha A. Awni ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Output ◽  
High Performance ◽  
Synergistic Effects ◽  
Perovskite Solar Cells ◽  
High Quality

The combination of Pb(SCN)2 and CsPbI3 results in high quality perovskite films, leading to high performance PVSCs with a stable power output.

scholarly journals Ambient Air Temperature Assisted Crystallization for Inorganic CsPbI2Br Perovskite Solar Cells

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3398
Author(s):  
Yi Long ◽  
Kun Liu ◽  
Yongli Zhang ◽  
Wenzhe Li
Keyword(s):  
Solar Cells ◽  
Air Temperature ◽  
High Performance ◽  
Defect Density ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Dark Phase ◽  
High Quality ◽  
Ambient Air Temperature ◽  
Air Atmosphere

Inorganic cesium lead halide perovskites, as alternative light absorbers for organic–inorganic hybrid perovskite solar cells, have attracted more and more attention due to their superb thermal stability for photovoltaic applications. However, the humid air instability of CsPbI2Br perovskite solar cells (PSCs) hinders their further development. The optoelectronic properties of CsPbI2Br films are closely related to the quality of films, so preparing high-quality perovskite films is crucial for fabricating high-performance PSCs. For the first time, we demonstrate that the regulation of ambient temperature of the dry air in the glovebox is able to control the growth of CsPbI2Br crystals and further optimize the morphology of CsPbI2Br film. Through controlling the ambient air temperature assisted crystallization, high-quality CsPbI2Br films are obtained, with advantages such as larger crystalline grains, negligible crystal boundaries, absence of pinholes, lower defect density, and faster carrier mobility. Accordingly, the PSCs based on as-prepared CsPbI2Br film achieve a power conversion efficiency of 15.5% (the maximum stabilized power output of 15.02%). Moreover, the optimized CsPbI2Br films show excellent robustness against moisture and oxygen and maintain the photovoltaic dark phase after 3 h aging in an air atmosphere at room temperature and 35% relative humidity (R.H.). In comparison, the pristine films are completely converted to the yellow phase in 1.5 h.

Suppressing intrinsic self-doping of CsPbIBr2 films for high-performance all-inorganic, carbon-based perovskite solar cells

2020 ◽  
Vol 4 (9) ◽  
pp. 4506-4515
Author(s):  
Zeyang Zhang ◽  
Fengqin He ◽  
Weidong Zhu ◽  
Dandan Chen ◽  
Wenming Chai ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Doping Level ◽  
High Performance ◽  
Inorganic Carbon ◽  
Perovskite Solar Cells ◽  
High Quality ◽  
Carbon Based

High-quality CsPbIBr2 films with a much lower self-doping level are obtained by the use of a CsI-rich precursor, which enables the fabrication of an all-inorganic, carbon-based solar cell with a superior efficiency of 10.48%.

A review: crystal growth for high-performance all-inorganic perovskite solar cells

2020 ◽  
Vol 13 (7) ◽  
pp. 1971-1996 ◽  
Author(s):  
Weijie Chen ◽  
Xinqi Li ◽  
Yaowen Li ◽  
Yongfang Li
Keyword(s):  
Solar Cells ◽  
Crystal Growth ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Key Factors ◽  
High Quality ◽  
Inorganic Perovskite ◽  
Perovskite Crystal

The key factors for high-quality all-inorganic perovskite crystal growth.

Reply to the ‘Comment on “Tremendously enhanced photocurrent enabled by triplet–triplet annihilation up-conversion for high-performance perovskite solar cells”’ by L. Nienhaus and T. W. Schmidt, Energy Environ. Sci., 2021, 14, 10.1039/D1EE01446C

2021 ◽  
Author(s):  
Wangping Sheng ◽  
Jia Yang ◽  
Xiang Li ◽  
Shuqin Xiao ◽  
Licheng Tan ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Synergistic Effects ◽  
Perovskite Solar Cells ◽  
Defect Passivation ◽  
Energy Environ ◽  
Triplet Triplet Annihilation

The photocurrent improvement of perovskite solar cells is mainly attributed to the synergistic effects including triplet–triplet annihilation up-conversion and rubrene-assisted defect passivation.

High performance low-bandgap perovskite solar cells based on a high-quality mixed Sn–Pb perovskite film prepared by vacuum-assisted thermal annealing

2018 ◽  
Vol 6 (34) ◽  
pp. 16347-16354 ◽  
Author(s):  
Meiyue Liu ◽  
Ziming Chen ◽  
Qifan Xue ◽  
Sin Hang Cheung ◽  
Shu Kong So ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Thermal Annealing ◽  
High Performance ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Perovskite Solar Cell ◽  
Film Morphology ◽  
High Quality ◽  
Low Bandgap

Vacuum-assisted thermal annealing not only could improve film morphology and crystallinity, but also could accelerate the sublimation of undesired MACl. With the help of this process, we obtain a highly efficient low-bandgap CH3NH3Sn0.5Pb0.5IxCl3−x perovskite solar cell with a power conversion efficiency of 12.3%.

Effects of cation size and concentration of cationic chlorides on the properties of formamidinium lead iodide based perovskite solar cells

2020 ◽  
Vol 4 (7) ◽  
pp. 3753-3763
Author(s):  
Minjin Kim ◽  
Tae Kyung Lee ◽  
In Woo Choi ◽  
Hye Won Choi ◽  
Yimhyun Jo ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Lead Iodide ◽  
High Quality ◽  
Cation Size

The effect of cationic chlorides has been studied to achieve high quality perovskite films, for high performance perovskite solar cells.

scholarly journals Acetone Complexes for High-Performance Perovskite Photovoltaics with Reduced Nonradiative Recombination

2022 ◽  
Author(s):  
Zhen Wang ◽  
Chenguang Yang ◽  
Yuying Cui ◽  
Li Xie ◽  
Feng Hao
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Nonradiative Recombination ◽  
High Quality ◽  
Solvent Engineering ◽  
Halide Perovskite

Solvent engineering has been widely employed in the preparation of high-quality perovskite films for emerging halide perovskite solar cells (PSCs). However, the heavy use of toxic solvents (such as N-methyl-2-pyrrolidone...

Thiosemicarbazide-complexed SnO2 electron transport layer for high-efficiency MAPbI3 perovskite solar cells

2021 ◽  
Author(s):  
Lei Zhang ◽  
Xiaoyu Ge ◽  
Bingquan Han ◽  
Lingbo Xu ◽  
Xiaoping Wu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
High Performance ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
High Quality ◽  
Crucial Component

High-quality electron transport layers (ETLs) are a crucial component for high-performance perovskite solar cells (PSCs) with n-i-p configuration. Herein, a facile and effective way to improve the properties of SnO2...

High‐Quality Ruddlesden–Popper Perovskite Film Formation for High‐Performance Perovskite Solar Cells

2021 ◽  
pp. 2002582
Author(s):  
Pengyun Liu ◽  
Ning Han ◽  
Wei Wang ◽  
Ran Ran ◽  
Wei Zhou ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Film Formation ◽  
Perovskite Solar Cells ◽  
High Quality
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