Integration of a functionalized graphene nano-network into a planar perovskite absorber for high-efficiency large-area solar cells

2018 ◽  
Vol 5 (5) ◽  
pp. 868-873 ◽  
Author(s):  
Yong Wang ◽  
Yuanyuan Zhou ◽  
Taiyang Zhang ◽  
Ming-Gang Ju ◽  
Lin Zhang ◽  
...  

The concept of introducing a charge-collection nano-network into a perovskite layer points to a new direction towards up-scaling of high-efficiency PSCs.

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.


Coatings ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 591
Author(s):  
Keke Song ◽  
Xiaoping Zou ◽  
Huiyin Zhang ◽  
Chunqian Zhang ◽  
Jin Cheng ◽  
...  

The electron transport layer (ETL) is critical to carrier extraction for perovskite solar cells (PSCs). Moreover, the morphology and surface condition of the ETL could influence the topography of the perovskite layer. ZnO, TiO2, and SnO2 were widely investigated as ETL materials. However, TiO2 requires a sintering process under high temperature and ZnO has the trouble of chemical instability. SnO2 possesses the advantages of low-temperature fabrication and high conductivity, which is critical to the performance of PSCs prepared under low temperature. Here, we optimized the morphology and property of SnO2 by modulating the concentration of a SnO2 colloidal dispersion solution. When adjusting the concentration of SnO2 colloidal dispersion solution to 5 wt.% (in water), SnO2 film indicated better performance and the perovskite film has a large grain size and smooth surface. Based on high efficiency (16.82%), the device keeps a low hysteresis index (0.23).


2021 ◽  
pp. 2109968
Author(s):  
Xiaojia Xu ◽  
Xiaoyu Ji ◽  
Rui Chen ◽  
Fangyuan Ye ◽  
Shuaijun Liu ◽  
...  

2019 ◽  
Vol 191 ◽  
pp. 389-398 ◽  
Author(s):  
Shaoyang Ma ◽  
Tao Ye ◽  
Tingting Wu ◽  
Zhe Wang ◽  
Zhixun Wang ◽  
...  

2011 ◽  
Vol 99 (17) ◽  
pp. 173305 ◽  
Author(s):  
Assaf Manor ◽  
Eugene A. Katz ◽  
Ronn Andriessen ◽  
Yulia Galagan

Author(s):  
S. Yoshida ◽  
K. Mitsui ◽  
T. Oda ◽  
Y. Yukimoto ◽  
K. Shirahata

2020 ◽  
Vol 32 (51) ◽  
pp. 2002202 ◽  
Author(s):  
Sang‐Won Lee ◽  
Soohyun Bae ◽  
Donghwan Kim ◽  
Hae‐Seok Lee

1977 ◽  
Vol 24 (4) ◽  
pp. 473-475 ◽  
Author(s):  
G.S. Kamath ◽  
J. Ewan ◽  
R.C. Knechtli

2017 ◽  
Vol 2 (9) ◽  
pp. 1978-1984 ◽  
Author(s):  
Jincheol Kim ◽  
Jae Sung Yun ◽  
Yongyoon Cho ◽  
Da Seul Lee ◽  
Benjamin Wilkinson ◽  
...  

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