Performance Improvement of Hole-Transport Material-Free Mesoporous Perovskite Solar Cells with Carbon Electrodes Using a Solid–Gas Reaction

2021 ◽  
Author(s):  
Byol Kim ◽  
Kwon-Il Ryu ◽  
Song-Guk Ko ◽  
Kyong-Su Sonu ◽  
Jin-Hyok Ri ◽  
...  
Keyword(s):  
Solar Cells ◽  
Performance Improvement ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Carbon Electrodes

scholarly journals Unraveling Passivation Mechanism of Imidazolium-Based Ionic Liquids on Inorganic Perovskite to Achieve Near-Record-Efficiency CsPbI2Br Solar Cells

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Jie Xu ◽  
Jian Cui ◽  
Shaomin Yang ◽  
Yu Han ◽  
Xi Guo ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Solar Cells ◽  
Performance Improvement ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Light Illumination ◽  
Ionic Bonds ◽  
The Stability

AbstractThe application of ionic liquids in perovskite has attracted wide-spread attention for its astounding performance improvement of perovskite solar cells (PSCs). However, the detailed mechanisms behind the improvement remain mysterious. Herein, a series of imidazolium-based ionic liquids (IILs) with different cations and anions is systematically investigated to elucidate the passivation mechanism of IILs on inorganic perovskites. It is found that IILs display the following advantages: (1) They form ionic bonds with Cs+ and Pb2+ cations on the surface and at the grain boundaries of perovskite films, which could effectively heal/reduce the Cs+/I− vacancies and Pb-related defects; (2) They serve as a bridge between the perovskite and the hole-transport-layer for effective charge extraction and transfer; and (3) They increase the hydrophobicity of the perovskite surface to further improve the stability of the CsPbI2Br PSCs. The combination of the above effects results in suppressed non-radiative recombination loss in CsPbI2Br PSCs and an impressive power conversion efficiency of 17.02%. Additionally, the CsPbI2Br PSCs with IILs surface modification exhibited improved ambient and light illumination stability. Our results provide guidance for an in-depth understanding of the passivation mechanism of IILs in inorganic perovskites."Image missing"

Performance Improvement in Low-Temperature-Processed Perovskite Solar Cells by Molecular Engineering of Porphyrin-Based Hole Transport Materials

2018 ◽  
Vol 10 (41) ◽  
pp. 35404-35410 ◽  
Author(s):  
Randi Azmi ◽  
Un-Hak Lee ◽  
Febrian Tri Adhi Wibowo ◽  
Seung Hun Eom ◽  
Sung Cheol Yoon ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
Performance Improvement ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Molecular Engineering

Hole transport free flexible perovskite solar cells with cost-effective carbon electrodes

2020 ◽  
Vol 32 (10) ◽  
pp. 105205
Author(s):  
Haixia Xie ◽  
Xingtian Yin ◽  
Yuxiao Guo ◽  
Dan Liu ◽  
Tong Liang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Cost Effective ◽  
Hole Transport ◽  
Carbon Electrodes

Performance improvement of perovskite solar cells using electron and hole transport layers

Solar Energy ◽  
2018 ◽  
Vol 174 ◽  
pp. 897-900 ◽  
Author(s):  
Guan-Syun Chen ◽  
Yi-Ching Chen ◽  
Ching-Ting Lee ◽  
Hsin-Ying Lee
Keyword(s):  
Solar Cells ◽  
Performance Improvement ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Hole Transport Layers

Alcohol based vapor annealing of a poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) layer for performance improvement of inverted perovskite solar cells

Nanoscale ◽  
2018 ◽  
Vol 10 (23) ◽  
pp. 11043-11051 ◽  
Author(s):  
Guanchen Liu ◽  
Xiaoyin Xie ◽  
Zhihai Liu ◽  
Guanjian Cheng ◽  
Eun-Cheol Lee
Keyword(s):  
Solar Cells ◽  
Performance Improvement ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Vapor Annealing

We introduced alcohol based vapor annealing of the hole transport layer for fabricating high-performance inverted perovskite solar cells.

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