scholarly journals Environment-friendly High Efficiency CH3NH3PbI3 Perovskite Solar Cells Fabricated by Green Antisolvent Method

2021 ◽  
Author(s):  
bowen gao ◽  
JING MENG
Keyword(s):  
Solar Cells ◽  
Propylene Glycol ◽  
Methyl Ether ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Propyl Acetate ◽  
Heterogeneous Nucleation Site ◽  
Environment Friendly ◽  
Perovskite Crystal ◽  
Glycol Methyl Ether

Abstract Green antisolvents propyl acetate and isooctane can promote the nucleation of PbI2 particles and provide the heterogeneous nucleation site of perovskite crystal, so as to promote the rapid growth of perovskite crystal. The films treated with propyl acetate and propylene glycol methyl ether have larger grains and lower root-mean-square value (RMS) than those treated with chlorobenzene. The full coverage perovskite films with uniform grain size which is closer to the exciton diffusion length of perovskite can be obtained. Compared with the CH3NH3PbI3 perovskite solar cells treated with chlorobenzene (power conversion efficiency (PCE) is 17.86%), the best efficiency of the devices treated with propylene glycol methyl ether is 21.60%, which is improved by 21%, which has certain reference value and guiding significance for researchers to obtain environment-friendly high-quality perovskite solar cells in the future.

Polymer strategies for high-efficiency and stable perovskite solar cells

Nano Energy ◽  
2021 ◽  
Vol 82 ◽  
pp. 105712
Author(s):  
Sisi Wang ◽  
Zhipeng Zhang ◽  
Zikang Tang ◽  
Chenliang Su ◽  
Wei Huang ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells

scholarly journals Dual Passivation of Perovskite and SnO 2 for High‐Efficiency MAPbI 3 Perovskite Solar Cells

2021 ◽  
pp. 2001466
Author(s):  
Yali Chen ◽  
Xuejiao Zuo ◽  
Yiyang He ◽  
Fang Qian ◽  
Shengnan Zuo ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells

scholarly journals The Main Progress of Perovskite Solar Cells in 2020–2021

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Tianhao Wu ◽  
Zhenzhen Qin ◽  
Yanbo Wang ◽  
Yongzhen Wu ◽  
Wei Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Lead Free ◽  
Manufacturing Cost ◽  
Practical Application ◽  
The World ◽  
Photovoltaic Technology

AbstractPerovskite solar cells (PSCs) emerging as a promising photovoltaic technology with high efficiency and low manufacturing cost have attracted the attention from all over the world. Both the efficiency and stability of PSCs have increased steadily in recent years, and the research on reducing lead leakage and developing eco-friendly lead-free perovskites pushes forward the commercialization of PSCs step by step. This review summarizes the main progress of PSCs in 2020 and 2021 from the aspects of efficiency, stability, perovskite-based tandem devices, and lead-free PSCs. Moreover, a brief discussion on the development of PSC modules and its challenges toward practical application is provided.

scholarly journals Iodine reduction for reproducible and high-performance perovskite solar cells and modules

2021 ◽  
Vol 7 (10) ◽  
pp. eabe8130
Author(s):  
Shangshang Chen ◽  
Xun Xiao ◽  
Hangyu Gu ◽  
Jinsong Huang
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
High Efficiency ◽  
Electronic Materials ◽  
Substantial Reduction ◽  
Perovskite Solar Cells ◽  
High Yield ◽  
Operation Conditions ◽  
Record Value ◽  
Precursor Powders

Perovskite-based electronic materials and devices such as perovskite solar cells (PSCs) have notoriously bad reproducibility, which greatly impedes both fundamental understanding of their intrinsic properties and real-world applications. Here, we report that organic iodide perovskite precursors can be oxidized to I2 even for carefully sealed precursor powders or solutions, which markedly deteriorates the performance and reproducibility of PSCs. Adding benzylhydrazine hydrochloride (BHC) as a reductant into degraded precursor solutions can effectively reduce the detrimental I2 back to I−, accompanied by a substantial reduction of I3−-induced charge traps in the films. BHC residuals in perovskite films further stabilize the PSCs under operation conditions. BHC improves the stabilized efficiency of the blade-coated p-i-n structure PSCs to a record value of 23.2% (22.62 ± 0.40% certified by National Renewable Energy Laboratory), and the high-efficiency devices have a very high yield. A stabilized aperture efficiency of 18.2% is also achieved on a 35.8-cm2 mini-module.

On the role of solution-processed bathocuproine in high-efficiency inverted perovskite solar cells

Solar Energy ◽  
2021 ◽  
Vol 218 ◽  
pp. 142-149
Author(s):  
Shou-En Chiang ◽  
Anjali Chandel ◽  
Diksha Thakur ◽  
Yan-Ta Chen ◽  
Pei-Chen Lin ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Solution Processed
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