scholarly journals Suppressing defects through the synergistic effect of a Lewis base and a Lewis acid for highly efficient and stable perovskite solar cells

2018 ◽  
Vol 11 (12) ◽  
pp. 3480-3490 ◽  
Author(s):  
Fei Zhang ◽  
Dongqin Bi ◽  
Norman Pellet ◽  
Chuanxiao Xiao ◽  
Zhen Li ◽  
...  

The synergistic combination of a Lewis base and a Lewis acid enables perovskite solar cells with high efficiency and stability.

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Alexander D. Taylor ◽  
Qing Sun ◽  
Katelyn P. Goetz ◽  
Qingzhi An ◽  
Tim Schramm ◽  
...  

AbstractDeposition of perovskite films by antisolvent engineering is a highly common method employed in perovskite photovoltaics research. Herein, we report on a general method that allows for the fabrication of highly efficient perovskite solar cells by any antisolvent via manipulation of the antisolvent application rate. Through detailed structural, compositional, and microstructural characterization of perovskite layers fabricated by 14 different antisolvents, we identify two key factors that influence the quality of the perovskite layer: the solubility of the organic precursors in the antisolvent and its miscibility with the host solvent(s) of the perovskite precursor solution, which combine to produce rate-dependent behavior during the antisolvent application step. Leveraging this, we produce devices with power conversion efficiencies (PCEs) that exceed 21% using a wide range of antisolvents. Moreover, we demonstrate that employing the optimal antisolvent application procedure allows for highly efficient solar cells to be fabricated from a broad range of precursor stoichiometries.


2018 ◽  
Vol 11 (8) ◽  
pp. 2035-2045 ◽  
Author(s):  
Junsheng Luo ◽  
Jianxing Xia ◽  
Hua Yang ◽  
Lingling Chen ◽  
Zhongquan Wan ◽  
...  

A fluorine-containing hydrophobic Lewis acid is employed as an effective dopant for PTAA to replace state-of-the-art Li-TFSI/t-BP in PSCs.


Solar RRL ◽  
2020 ◽  
pp. 2000606
Author(s):  
Muhammad. Abdel-Shakour ◽  
Towhid H. Chowdhury ◽  
Kiyoto Matsuishi ◽  
Idriss Bedja ◽  
Yutaka Moritomo ◽  
...  

RSC Advances ◽  
2020 ◽  
Vol 10 (48) ◽  
pp. 29010-29017 ◽  
Author(s):  
Muhammad Adnan ◽  
Zobia Irshad ◽  
Jae Kwan Lee

Sequential all-dip-coating processed perovskite materials was conducted in an aqueous non-halide lead precursor solution, which was followed by that in a mixed halide solution for high-efficiency perovskite solar cells.


2016 ◽  
Vol 49 (2) ◽  
pp. 311-319 ◽  
Author(s):  
Jin-Wook Lee ◽  
Hui-Seon Kim ◽  
Nam-Gyu Park

2019 ◽  
Vol 7 (23) ◽  
pp. 14027-14032 ◽  
Author(s):  
Shuoxun Tian ◽  
Jiehuan Chen ◽  
Xiaomei Lian ◽  
Yaqin Wang ◽  
Yingzhu Zhang ◽  
...  

High efficiency (12.78%) 2D perovskite solar cells are realized by engineering the substrate to manipulate the growth of 2D perovskites.


2019 ◽  
Vol 7 (48) ◽  
pp. 27267-27277 ◽  
Author(s):  
Ahra Yi ◽  
Sangmin Chae ◽  
Hanbin Lee ◽  
Hyo Jung Kim

We propose co-solvent vapor annealing (SVA) as an effective post-treatment process to improve the quality of crystals and grains for high-efficiency perovskite solar cells.


2016 ◽  
Vol 9 (7) ◽  
pp. 2326-2333 ◽  
Author(s):  
Guan-Woo Kim ◽  
Gyeongho Kang ◽  
Jinseck Kim ◽  
Gang-Young Lee ◽  
Hong Il Kim ◽  
...  

A dopant–free polymeric hole transport material (HTM), RCP, based on benzo[1,2-b:4,5:b′]dithiophene and 2,1,3-benzothiadiazole exhibited a high efficiency of 17.3% in a perovskite solar cell and maintained its initial efficiency for over 1400 hours.


2016 ◽  
Vol 4 (20) ◽  
pp. 7903-7913 ◽  
Author(s):  
Chih-Yu Chang ◽  
Yu-Chia Chang ◽  
Wen-Kuan Huang ◽  
Wen-Chi Liao ◽  
Hung Wang ◽  
...  

A promising approach towards highly efficient and stable large-area ITO-free perovskite solar cells is demonstrated by employing thiol-functionalized self-assembled monolayers as interfacial modification layers.


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