Influence of the MACl additive on grain boundaries, trap-state properties, and charge dynamics in perovskite solar cells

2021 ◽  
Vol 23 (10) ◽  
pp. 6162-6170
Author(s):  
Yanru Guo ◽  
Shuai Yuan ◽  
Dongping Zhu ◽  
Man Yu ◽  
Hao-Yi Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Grain Boundaries ◽  
Deep Level ◽  
Perovskite Solar Cells ◽  
Transient Dynamics ◽  
Trap State ◽  
Charge Dynamics

A large-grained perovskite induced by MACl with effectively passivated deep-level traps at grain boundaries is systematically studied via transient dynamics measurements.

scholarly journals The influence of the electron transport layer on charge dynamics and trap-state properties in planar perovskite solar cells

RSC Advances ◽  
2020 ◽  
Vol 10 (21) ◽  
pp. 12347-12353 ◽  
Author(s):  
Man Yu ◽  
Yanru Guo ◽  
Shuai Yuan ◽  
Jia-Shang Zhao ◽  
Yujun Qin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Significant Influence ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Trap State ◽  
Charge Dynamics ◽  
Work Mechanism

The underlying work mechanism of electron transport layers and their significant influence on photovoltaic performance are systematically studied.

scholarly journals Plasmon-induced trap filling at grain boundaries in perovskite solar cells

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Kai Yao ◽  
Siqi Li ◽  
Zhiliang Liu ◽  
Yiran Ying ◽  
Petr Dvořák ◽  
...  
Keyword(s):  
Solar Cells ◽  
Grain Boundaries ◽  
Density Functional ◽  
Deep Level ◽  
Photophysical Properties ◽  
Perovskite Solar Cells ◽  
Density Functional Theory Calculations ◽  
Transient Absorption Spectroscopy ◽  
Plasmonic Nanostructures ◽  
Trap States

AbstractThe deep-level traps induced by charged defects at the grain boundaries (GBs) of polycrystalline organic–inorganic halide perovskite (OIHP) films serve as major recombination centres, which limit the device performance. Herein, we incorporate specially designed poly(3-aminothiophenol)-coated gold (Au@PAT) nanoparticles into the perovskite absorber, in order to examine the influence of plasmonic resonance on carrier dynamics in perovskite solar cells. Local changes in the photophysical properties of the OIHP films reveal that plasmon excitation could fill trap sites at the GB region through photo-brightening, whereas transient absorption spectroscopy and density functional theory calculations correlate this photo-brightening of trap states with plasmon-induced interfacial processes. As a result, the device achieved the best efficiency of 22.0% with robust operational stability. Our work provides unambiguous evidence for plasmon-induced trap occupation in OIHP and reveals that plasmonic nanostructures may be one type of efficient additives to overcome the recombination losses in perovskite solar cells and thin-film solar cells in general.

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

Ionic Additive Engineering Toward High-Efficiency Perovskite Solar Cells with Reduced Grain Boundaries and Trap Density

2018 ◽  
Vol 28 (34) ◽  
pp. 1801985 ◽  
Author(s):  
Feilong Cai ◽  
Yu Yan ◽  
Jiaxu Yao ◽  
Pang Wang ◽  
Hui Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Grain Boundaries ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Trap Density ◽  
Ionic Additive

Heat mitigation in perovskite solar cells: The role of grain boundaries

2021 ◽  
Vol 220 ◽  
pp. 110837 ◽  
Author(s):  
Hooman Mehdizadeh-Rad ◽  
Farhad Mehdizadeh-Rad ◽  
Furong Zhu ◽  
Jai Singh
Keyword(s):  
Solar Cells ◽  
Grain Boundaries ◽  
Perovskite Solar Cells

scholarly journals Nanoscale control of grain boundary potential barrier, dopant density and filled trap state density for higher efficiency perovskite solar cells

InfoMat ◽  
2019 ◽  
Vol 2 (2) ◽  
pp. 409-423 ◽  
Author(s):  
Behzad Bahrami ◽  
Sally Mabrouk ◽  
Nirmal Adhikari ◽  
Hytham Elbohy ◽  
Ashim Gurung ◽  
...  
Keyword(s):  
Solar Cells ◽  
Grain Boundary ◽  
Potential Barrier ◽  
Perovskite Solar Cells ◽  
State Density ◽  
Trap State ◽  
Boundary Potential

scholarly journals Suppressing Vacancy Defects and Grain Boundaries via Ostwald Ripening for High‐Performance and Stable Perovskite Solar Cells

2019 ◽  
Vol 32 (7) ◽  
pp. 1904347 ◽  
Author(s):  
Yuqian Yang ◽  
Jihuai Wu ◽  
Xiaobing Wang ◽  
Qiyao Guo ◽  
Xuping Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Grain Boundaries ◽  
High Performance ◽  
Ostwald Ripening ◽  
Perovskite Solar Cells ◽  
Vacancy Defects

Microscopic Investigation of Grain Boundaries in Organolead Halide Perovskite Solar Cells

2015 ◽  
Vol 7 (51) ◽  
pp. 28518-28523 ◽  
Author(s):  
Jiang-Jun Li ◽  
Jing-Yuan Ma ◽  
Qian-Qing Ge ◽  
Jin-Song Hu ◽  
Dong Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Grain Boundaries ◽  
Perovskite Solar Cells ◽  
Microscopic Investigation ◽  
Halide Perovskite ◽  
Organolead Halide

Self-assembled propylammonium cations at grain boundaries and the film surface to improve the efficiency and stability of perovskite solar cells

2019 ◽  
Vol 7 (41) ◽  
pp. 23739-23746 ◽  
Author(s):  
Chengbin Fei ◽  
Meng Zhou ◽  
Jonathan Ogle ◽  
Detlef-M. Smilgies ◽  
Luisa Whittaker-Brooks ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Grain Boundary ◽  
Grain Boundaries ◽  
Perovskite Solar Cells ◽  
Film Surface ◽  
Solar Cell Efficiency ◽  
Cell Efficiency ◽  
Large Size ◽  
Moisture Stability

Large size cation (PA) was introduced into the grain boundary and film surface of the 3D perovskite to improve the solar cell efficiency and moisture stability.

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