The impact of highly excessive PbI2 on the correlation of MAPbI3 perovskite morphology and carrier lifetimes

2020 ◽  
Vol 8 (41) ◽  
pp. 14481-14489
Author(s):  
Van Hoang Nguyen ◽  
Tuan K. A. Hoang ◽  
Yasuyoshi Kurokawa ◽  
Noritaka Usami

The morphology of methylammonium lead iodide MAPbI3, formed by a two-step method with non-stoichiometric, excessive PbI2 concentration for a high carrier lifetime is reported.

2018 ◽  
Author(s):  
Nga Phung ◽  
Antonio Abate ◽  
Daniele Meggiolaro ◽  
Filippo De Angelis ◽  
Roberto Felix Duarte ◽  
...  

2016 ◽  
Vol 28 (44) ◽  
pp. 9839-9845 ◽  
Author(s):  
Daniel Pérez-del-Rey ◽  
Dávid Forgács ◽  
Eline M. Hutter ◽  
Tom J. Savenije ◽  
Dennis Nordlund ◽  
...  

2022 ◽  
Author(s):  
Bo-Han Li ◽  
Huang Li ◽  
Zhipeng Xuan ◽  
Wen Zeng ◽  
Jia-Cheng Wang ◽  
...  

Abstract Understanding the nature of photogenerated carriers and their subsequent dynamics in perovskites is important for the development of related materials and devices. Most ultrafast dynamic measurements on the perovskite materials were conducted under high carrier densities, which likely obscures the genuine dynamics at low carrier densities under solar illumination conditions. In this study, we presented a detailed experimental study of the carrier density-dependent dynamics in hybrid lead iodide perovskites using a highly sensitive transient absorption spectrometer. We found that the carrier lifetime was about a hundred nanosecond in the linear response range, representing sunlight excitation, which was much longer than under high carrier densities. We also elucidated that the fast carrier decay (<1 ps) and the medium decay processes (tens of ps) occurred via the defect state trapping, and we determined its effects on the utilization percentage of photogenerated carriers through quantitative analysis. Furthermore, we obtained the Shockley-Queisser limit that took into account the carrier trapping effect, which directly reflected the material performance.


2016 ◽  
Vol 7 (5) ◽  
pp. 923-928 ◽  
Author(s):  
Yu Bi ◽  
Eline M. Hutter ◽  
Yanjun Fang ◽  
Qingfeng Dong ◽  
Jinsong Huang ◽  
...  

2017 ◽  
Vol 58 (8) ◽  
Author(s):  
E. S. Yudanova ◽  
◽  
T. A. Duda ◽  
O. E. Tereshchenko ◽  
O. I. Semenova ◽  
...  

Author(s):  
Holger Röhm ◽  
Tobias Leonhard ◽  
Michael J. Hoffmann ◽  
Alexander Colsmann

2018 ◽  
Author(s):  
Gustavo de Miguel ◽  
Alexander Davis Jodlowski ◽  
Cristina Roldán-Carmona ◽  
Luis Camacho Delgado ◽  
Mohammad Khaja Nazeeruddin

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