Dual functions of interface passivation and n-doping using 2,6-dimethoxypyridine for enhanced reproducibility and performance of planar perovskite solar cells

2017 ◽  
Vol 5 (33) ◽  
pp. 17632-17639 ◽  
Author(s):  
Youyu Jiang ◽  
Jing Li ◽  
Sixing Xiong ◽  
Fangyuan Jiang ◽  
Tiefeng Liu ◽  
...  

2,6-Dimethoxypyridine serves dual functions as a Lewis base for surface passivation and as a dopant for PC61BM in the fabrication of highly reproducible and high-efficiency planar perovskite solar cells.

2021 ◽  
Author(s):  
Ran Zhao ◽  
Kai Zhang ◽  
Jiahao Zhu ◽  
Shuang Xiao ◽  
Wei Xiong ◽  
...  

Interface passivation is of the pivot to achieve high-efficiency organic metal halide perovskite solar cells (PSCs). Atomic layer deposition (ALD) of wide band gap oxides has recently shown great potential...


2019 ◽  
Vol 30 (7) ◽  
pp. 1907962 ◽  
Author(s):  
Md Arafat Mahmud ◽  
The Duong ◽  
Yanting Yin ◽  
Huyen T. Pham ◽  
Daniel Walter ◽  
...  

Solar RRL ◽  
2019 ◽  
Vol 3 (10) ◽  
pp. 1900134 ◽  
Author(s):  
Pingli Qin ◽  
Tong Wu ◽  
Zhengchun Wang ◽  
Xiaolu Zheng ◽  
Xueli Yu ◽  
...  

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

2020 ◽  
Vol 30 (12) ◽  
pp. 1908408 ◽  
Author(s):  
Pingli Qin ◽  
Tong Wu ◽  
Zhengchun Wang ◽  
Lan Xiao ◽  
Liang Ma ◽  
...  

2021 ◽  
Vol 42 (11) ◽  
pp. 112201
Author(s):  
Xiao Zhang ◽  
Sai Ma ◽  
Jingbi You ◽  
Yang Bai ◽  
Qi Chen

Abstract Interfacial engineering has made an outstanding contribution to the development of high-efficiency perovskite solar cells (PSCs). Here, we introduce an effective interface passivation strategy via methoxysilane molecules with different terminal groups. The power conversion efficiency (PCE) has increased from 20.97% to 21.97% after introducing a 3-isocyanatopropyltrimethoxy silane (IPTMS) molecule with carbonyl group, while a trimethoxy[3-(phenylamino)propyl] silane (PAPMS) molecule containing aniline group deteriorates the photovoltaic performance as a consequence of decreased open circuit voltage. The improved performance after IPTMS treatment is ascribed to the suppression of non-radiative recombination and enhancement of carrier transportation. In addition, the devices with carbonyl group modification exhibit outstanding thermal stability, which maintain 90% of its initial PCE after 1500 h exposure. This work provides a guideline for the design of passivation molecules aiming to deliver the efficiency and thermal stability simultaneously.


2017 ◽  
Vol 9 (44) ◽  
pp. 38467-38476 ◽  
Author(s):  
Weihai Zhang ◽  
Juan Xiong ◽  
Li Jiang ◽  
Jianying Wang ◽  
Tao Mei ◽  
...  

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Qingshun Dong ◽  
Chao Zhu ◽  
Min Chen ◽  
Chen Jiang ◽  
Jingya Guo ◽  
...  

AbstractThe perovskite solar cell has emerged rapidly in the field of photovoltaics as it combines the merits of low cost, high efficiency, and excellent mechanical flexibility for versatile applications. However, there are significant concerns regarding its operational stability and mechanical robustness. Most of the previously reported approaches to address these concerns entail separate engineering of perovskite and charge-transporting layers. Herein we present a holistic design of perovskite and charge-transporting layers by synthesizing an interpenetrating perovskite/electron-transporting-layer interface. This interface is reaction-formed between a tin dioxide layer containing excess organic halide and a perovskite layer containing excess lead halide. Perovskite solar cells with such interfaces deliver efficiencies up to 22.2% and 20.1% for rigid and flexible versions, respectively. Long-term (1000 h) operational stability is demonstrated and the flexible devices show high endurance against mechanical-bending (2500 cycles) fatigue. Mechanistic insights into the relationship between the interpenetrating interface structure and performance enhancement are provided based on comprehensive, advanced, microscopic characterizations. This study highlights interface integrity as an important factor for designing efficient, operationally-stable, and mechanically-robust solar cells.


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