The Energy‐Alignment Engineering in Polytriphenylamines‐Based Hole Transport Polymers Realizes Low Energy Loss and High Efficiency for All‐Inorganic Perovskite Solar Cells

Solar RRL ◽  
2019 ◽  
Vol 3 (9) ◽  
pp. 1900265 ◽  
Author(s):  
Bin Zhang ◽  
Yingzhi Zhou ◽  
Qifan Xue ◽  
Jingjing Tian ◽  
Qin Yao ◽  
...  
Nanomaterials ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 2321
Author(s):  
Yizhou He ◽  
Liyifei Xu ◽  
Cheng Yang ◽  
Xiaowei Guo ◽  
Shaorong Li

In the last decade, perovskite solar cells have made a quantum leap in performance with the efficiency increasing from 3.8% to 25%. However, commercial perovskite solar cells have faced a major impediment due to toxicity and stability issues. Therefore, lead-free inorganic perovskites have been investigated in order to find substitute perovskites which can provide a high efficiency similar to lead-based perovskites. In recent studies, as a kind of lead-free inorganic perovskite material, Cs4CuSb2Cl12 has been demonstrated to possess impressive photoelectric properties and excellent environmental stability. Moreover, Cs4CuSb2Cl12 nanocrystals have smaller effective photo-generated carrier masses than bulk Cs4CuSb2Cl12, which provides excellent carrier mobility. To date, there have been no reports about Cs4CuSb2Cl12 nanocrystals used for making solar cells. To explore the potential of Cs4CuSb2Cl12 nanocrystal solar cells, we propose a lead-free perovskite solar cell with the configuration of FTO/ETL/Cs4CuSb2Cl12 nanocrystals/HTL/Au using a solar cell capacitance simulator. Moreover, we numerically investigate the factors that affect the performance of the Cs4CuSb2Cl12 nanocrystal solar cell with the aim of enhancing its performance. By selecting the appropriate hole transport material, electron transport material, thickness of the absorber layer, doping densities, defect density in the absorber, interface defect densities, and working temperature point, we predict that the Cs4CuSb2Cl12 nanocrystal solar cell with the FTO/TiO2/Cs4CuSb2Cl12 nanocrystals/Cu2O/Au structure can attain a power conversion efficiency of 23.07% at 300 K. Our analysis indicates that Cs4CuSb2Cl12 nanocrystals have great potential as an absorbing layer towards highly efficient lead-free all-inorganic perovskite solar cells.


2021 ◽  
Vol 42 (5) ◽  
pp. 050203
Author(s):  
Bingcheng Yu ◽  
Chuantian Zuo ◽  
Jiangjian Shi ◽  
Qingbo Meng ◽  
Liming Ding

iScience ◽  
2021 ◽  
pp. 103365
Author(s):  
Zeyang Zhang ◽  
Yanshuang Ba ◽  
Dandan Chen ◽  
Junxiao Ma ◽  
Weidong Zhu ◽  
...  

Author(s):  
F. Bonnín-Ripoll ◽  
Ya. B. Martynov ◽  
R. G. Nazmitdinov ◽  
G. Cardona ◽  
R. Pujol-Nadal

A thorough optical + electrical + Lambertian scattering analysis determines the optimal thickness of a perovskite thin-film solar cell revealing its high efficiency with inorganic HTMs.


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