Interfacial gradient energy band alignment modulation via ion exchange reaction toward efficient and stable methylammonium-free Dion-Jacobson quasi-2D perovskite solar cells

2021 ◽  
Vol 506 ◽  
pp. 230213
Author(s):  
Pengyu Su ◽  
Le Bai ◽  
Huan Bi ◽  
Baibai Liu ◽  
Shi Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Ion Exchange ◽  
Exchange Reaction ◽  
Energy Band ◽  
Perovskite Solar Cells ◽  
Band Alignment ◽  
Ion Exchange Reaction ◽  
Gradient Energy

Toward Efficient and Stable Perovskite Solar Cells by 2D Interface Energy Band Alignment

2020 ◽  
pp. 2001683
Author(s):  
Weiwei Wang ◽  
Zhenhuang Su ◽  
Bo Sun ◽  
Lei Tao ◽  
Hao Gu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Band ◽  
Perovskite Solar Cells ◽  
Interface Energy ◽  
Band Alignment

Interface‐Modification‐Induced Gradient Energy Band for Highly Efficient CsPbIBr 2 Perovskite Solar Cells

2019 ◽  
Vol 9 (21) ◽  
pp. 1803785 ◽  
Author(s):  
Waqas Siddique Subhani ◽  
Kai Wang ◽  
Minyong Du ◽  
Xiuli Wang ◽  
Shengzhong (Frank) Liu
Keyword(s):  
Solar Cells ◽  
Energy Band ◽  
Perovskite Solar Cells ◽  
Interface Modification ◽  
Highly Efficient ◽  
Gradient Energy

Preparation of CoS2 nanoflake arrays through ion exchange reaction of Co(OH)2 and their application as counter electrodes for dye-sensitized solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (6) ◽  
pp. 4328-4333 ◽  
Author(s):  
Jung-Che Tsai ◽  
Min-Hsiung Hon ◽  
Ing-Chi Leu
Keyword(s):  
Solar Cells ◽  
Ion Exchange ◽  
Exchange Reaction ◽  
Counter Electrode ◽  
Dye Sensitized Solar Cells ◽  
Counter Electrodes ◽  
Dye Sensitized ◽  
Ion Exchange Reaction ◽  
Sensitized Solar Cells

CoS2 nanoflake arrays prepared on TCO were used as the counter electrode in DSSC application.

Extrinsic Movable Ions in MAPbI3 Modulate Energy Band Alignment in Perovskite Solar Cells

2017 ◽  
Vol 8 (5) ◽  
pp. 1701981 ◽  
Author(s):  
Jing Zhang ◽  
Renjie Chen ◽  
Yongzhen Wu ◽  
Minghui Shang ◽  
Zhaobing Zeng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Band ◽  
Perovskite Solar Cells ◽  
Band Alignment

Bulky Cations Improve Band Alignment and Efficiency in Sn-Based Perovskite Solar Cells

2020 ◽  
Author(s):  
Deepak Thrithamarassery Gangadharan ◽  
David A. Valverde-Chávez ◽  
Andres-Felipe Castro-Mendez ◽  
Vivek Prakash ◽  
Ricardo Izquierdo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Band Alignment

Photoassisted Production of O2-• and H2 in Aqueous Medium Stimulated by Polythiophene in ZSM-5 Zeolite Channels

1999 ◽  
Vol 64 (1) ◽  
pp. 149-156 ◽  
Author(s):  
Gabriel Čík ◽  
František Šeršeň ◽  
Alena Bumbálová
Keyword(s):  
Reactive Oxygen Species ◽  
Ion Exchange ◽  
Visible Light ◽  
Aqueous Medium ◽  
Exchange Reaction ◽  
Epr Spectroscopy ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Water Reduction ◽  
Ion Exchange Reaction

The formation of reactive oxygen species due to irradiation by a visible light of the polythiophene deposited in ZSM-5 zeolite channels in aqueous medium has been studied. Polymerization of thiophene was carried out in zeolite channels after the ion-exchange reaction of Na+ for Fe3+. By means of EPR spectroscopy, the temporarily generated 1O2 in irradiated aqueous medium was proved. The formation of O2-• was confirmed by the reduction of Fe3+-cytochrome c. Irradiation led to the water reduction to hydrogen.

scholarly journals Effects of CsSnxPb1−xI3 Quantum Dots as Interfacial Layer on Photovoltaic Performance of Carbon-Based Perovskite Solar Cells

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Chi Zhang ◽  
Zhiyuan He ◽  
Xuanhui Luo ◽  
Rangwei Meng ◽  
Mengwei Chen ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Photogenerated Electron ◽  
Depletion Region ◽  
Band Alignment ◽  
Back Surface ◽  
The One ◽  
Carbon Based

AbstractIn this work, inorganic tin-doped perovskite quantum dots (PQDs) are incorporated into carbon-based perovskite solar cells (PSCs) to improve their photovoltaic performance. On the one hand, by controlling the content of Sn2+ doping, the energy level of the tin-doped PQDs can be adjusted, to realize optimized band alignment and enhanced separation of photogenerated electron–hole pairs. On the other hand, the incorporation of tin-doped PQDs provided with a relatively high acceptor concentration due to the self-p-type doping effect is able to reduce the width of the depletion region near the back surface of the perovskite, thereby enhancing the hole extraction. Particularly, after the addition of CsSn0.2Pb0.8I3 quantum dots (QDs), improvement of the power conversion efficiency (PCE) from 12.80 to 14.22% can be obtained, in comparison with the pristine device. Moreover, the experimental results are analyzed through the simulation of the one-dimensional perovskite/tin-doped PQDs heterojunction.

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