Two-step growth of CsPbI3−xBrx films employing dynamic CsBr treatment: toward all-inorganic perovskite photovoltaics with enhanced stability

2019 ◽  
Vol 7 (31) ◽  
pp. 18488-18498 ◽  
Author(s):  
Bhaskar Parida ◽  
Jun Ryu ◽  
Saemon Yoon ◽  
Seojun Lee ◽  
Yejin Seo ◽  
...  

The dynamic CsBr treatment on α-CsPbI3 significantly improves the power conversion efficiency, reproducibility, and stability of all-inorganic CsPbI3−xBrx perovskite solar cells.

Nanoscale ◽  
2019 ◽  
Vol 11 (45) ◽  
pp. 21824-21833 ◽  
Author(s):  
Jyoti V. Patil ◽  
Sawanta S. Mali ◽  
Chang Kook Hong

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


2019 ◽  
Vol 7 (26) ◽  
pp. 15880-15886 ◽  
Author(s):  
Changwen Liu ◽  
Weiguang Kong ◽  
Wang Li ◽  
Hong Chen ◽  
Dedi Li ◽  
...  

Precursor engineering toward enhanced Voc and stability of inverted perovskite solar cells with a champion power conversion efficiency of 20.7%.


2020 ◽  
Vol 4 (5) ◽  
pp. 2134-2148
Author(s):  
Lulu Wang ◽  
Bingbing Fan ◽  
Bing Zheng ◽  
Zhibing Yang ◽  
Penggang Yin ◽  
...  

Although the power conversion efficiency (PCE) of organic–inorganic hybrid perovskite solar cells (PSCs) is comparable to those of commercial solar cells, a challenging problem of instability hampers their further commercialization.


2019 ◽  
Vol 7 (37) ◽  
pp. 21036-21068 ◽  
Author(s):  
Jialong Duan ◽  
Hongzhe Xu ◽  
W. E. I. Sha ◽  
Yuanyuan Zhao ◽  
Yudi Wang ◽  
...  

Perovskite solar cells (PSCs) have attracted tremendous interest because of their rapid improvement in power conversion efficiency (PCE) from the initial PCE of 3.8% for the first prototype to the certified PCE of 25.2% in 2019.


2021 ◽  
Author(s):  
Stav Rahmany ◽  
Lioz Etgar

Much effort has been made to push the power conversion efficiency of perovskite solar cells (PSCs) towards the theoretical limit. Recent studies have shown that post deposition treatment of barrier...


2019 ◽  
Vol 7 (10) ◽  
pp. 5635-5642 ◽  
Author(s):  
Lin Yang ◽  
Yohan Dall'Agnese ◽  
Kanit Hantanasirisakul ◽  
Christopher E. Shuck ◽  
Kathleen Maleski ◽  
...  

Addition of the Ti3C2 into SnO2 enhanced the power conversion efficiency due to the good conductivity of Ti3C2 nanosheets.


Author(s):  
Wenbin Guo ◽  
Guanhua Ren ◽  
Wenbin Han ◽  
Yanyu Deng ◽  
Wei Wu ◽  
...  

Organic-inorganic hybrid perovskite solar cells (PSCs) have made unprecedented progress in the past ten years, the power conversion efficiency of which increased from 3.8% in 2009 to 25.5% in 2019....


Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 329
Author(s):  
Wen Huang ◽  
Rui Zhang ◽  
Xuwen Xia ◽  
Parker Steichen ◽  
Nanjing Liu ◽  
...  

Zinc Oxide (ZnO) has been regarded as a promising electron transport layer (ETL) in perovskite solar cells (PSCs) owing to its high electron mobility. However, the acid-nonresistance of ZnO could destroy organic-inorganic hybrid halide perovskite such as methylammonium lead triiodide (MAPbI3) in PSCs, resulting in poor power conversion efficiency (PCE). It is demonstrated in this work that Nb2O5/ZnO films were deposited at room temperature with RF magnetron sputtering and were successfully used as double electron transport layers (DETL) in PSCs due to the energy band matching between Nb2O5 and MAPbI3 as well as ZnO. In addition, the insertion of Nb2O5 between ZnO and MAPbI3 facilitated the stability of the perovskite film. A systematic investigation of the ZnO deposition time on the PCE has been carried out. A deposition time of five minutes achieved a ZnO layer in the PSCs with the highest power conversion efficiency of up to 13.8%. This excellent photovoltaic property was caused by the excellent light absorption property of the high-quality perovskite film and a fast electron extraction at the perovskite/DETL interface.


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