MXene-Based Tailoring of Carrier Dynamics, Defect Passivation, and Interfacial Band Alignment for Efficient Planar p–i–n Perovskite Solar Cells

2021 ◽  
Author(s):  
Venkata S. N. Chava ◽  
P. S. Chandrasekhar ◽  
Ashley Gomez ◽  
Luis Echegoyen ◽  
Sreeprasad T. Sreenivasan
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Carrier Dynamics ◽  
Band Alignment ◽  
Defect Passivation

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

Multifunctional Chemical Bridge and Defect Passivation for Highly Efficient Inverted Perovskite Solar Cells

2021 ◽  
pp. 1596-1606
Author(s):  
Qisen Zhou ◽  
Junming Qiu ◽  
Yunfei Wang ◽  
Mei Yu ◽  
Jianhua Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Highly Efficient ◽  
Defect Passivation

Efficient Defect Passivation with Niacin for High-Performance and Stable Perovskite Solar Cells

2021 ◽  
Author(s):  
Jing Ren ◽  
Shurong Wang ◽  
Jianxing Xia ◽  
Chengbo Li ◽  
Lisha Xie ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Carrier ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Trap States ◽  
Carrier Recombination ◽  
Defect Passivation ◽  
Recombination Centers ◽  
Charge Carrier Recombination ◽  
Halide Perovskite

Defects, inevitably produced in the solution-processed halide perovskite films, can act as charge carrier recombination centers to induce severe energy loss in perovskite solar cells (PSCs). Suppressing these trap states...

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.

Defect passivation grain boundaries using 3-aminopropyltrimethoxysilane for highly efficient and stable perovskite solar cells

Solar Energy ◽  
2021 ◽  
Vol 224 ◽  
pp. 472-479
Author(s):  
Ronghong Zheng ◽  
Shuangshuang Zhao ◽  
Hua Zhang ◽  
Haoyue Li ◽  
Jia Zhuang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Grain Boundaries ◽  
Perovskite Solar Cells ◽  
Highly Efficient ◽  
Defect Passivation
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