Retarding the crystallization of PbI2for highly reproducible planar-structured perovskite solar cells via sequential deposition

2014 ◽  
Vol 7 (9) ◽  
pp. 2934-2938 ◽  
Author(s):  
Yongzhen Wu ◽  
Ashraful Islam ◽  
Xudong Yang ◽  
Chuanjiang Qin ◽  
Jian Liu ◽  
...  

A universally useful idea for preparing high quality perovskite films is proposed by retarding the crystallization of PbI2, which make possible highly reproducible planar structured perovskite solar cells.

2017 ◽  
Vol 5 (25) ◽  
pp. 13032-13038 ◽  
Author(s):  
Jiajie Mo ◽  
Chunfu Zhang ◽  
Jingjing Chang ◽  
Haifeng Yang ◽  
He Xi ◽  
...  

We present a facile way towards the use of the polar solvent additive in the inter-diffusion two-step sequential deposition method for a high quality perovskite film.


Author(s):  
Ping Hou ◽  
Wenxiang Yang ◽  
Ning Wan ◽  
Zhi Fang ◽  
Jinju Zheng ◽  
...  

We report a facile BiBr3(DMSO)2 adduct process to produce high-quality Cs2AgBiBr6 films with large grains for the first time, which leads to an enhancement of over 40% on the PCE of Cs2AgBiBr6-based solar cells compared to that of the control sample.


2021 ◽  
Vol 112 ◽  
pp. 110794
Author(s):  
Mohanad D. Humadi ◽  
Haitham T. Hussein ◽  
Mayada S. Mohamed ◽  
Mustafa K.A. Mohammed ◽  
Ersin Kayahan

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3398
Author(s):  
Yi Long ◽  
Kun Liu ◽  
Yongli Zhang ◽  
Wenzhe Li

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.


Author(s):  
Youhei Numata ◽  
Naoyuki Shibayama ◽  
Tsutomu Miyasaka

Perovskite solar cells (PSC) capable of open-circuit voltage (VOC) over 1.5 V was fabricated based on a formamidinium lead-bromide (FAPbBr3) perovskite absorber film prepared by sequential deposition procedure using dimethylsulfoxide...


2017 ◽  
Vol 61 (1) ◽  
pp. 73-79 ◽  
Author(s):  
Xihong Ding ◽  
Yingke Ren ◽  
Yahan Wu ◽  
Yafeng Xu ◽  
Jun Zhu ◽  
...  

2022 ◽  
Vol 520 ◽  
pp. 230783
Author(s):  
Dae Woo Kim ◽  
Eui Dae Jung ◽  
Chung Hyeon Jang ◽  
Ji A. Hong ◽  
Hye Seung Kim ◽  
...  

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