scholarly journals Surface Passivation Using N-Type Organic Semiconductor by One-Step Method in Two-Dimensional Perovskite Solar Cells

Crystals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 933
Author(s):  
Helong Wang ◽  
Guanchen Liu ◽  
Chongyang Xu ◽  
Fanming Zeng ◽  
Xiaoyin Xie ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Surface Passivation ◽  
Perovskite Solar Cells ◽  
Charge Recombination ◽  
Transport Layer ◽  
Environmental Stability ◽  
Electron Transport Layer ◽  
Two Dimensional ◽  
One Step

Surface passivation, which has been intensively studied recently, is essential for the perovskite solar cells (PSCs), due to the intrinsic defects in perovskite crystal. A series of chemical or physical methods have been published for passivating the defects of perovskites, which effectively suppressed the charge recombination and enhanced the photovoltaic performance. In this study, the n-type semiconductor of [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) is dissolved in chlorobenzene (CB) for the surface passivation during the spin-coating process for depositing the two-dimensional (2D) perovskite film. This approach simplifies the fabrication process of 2D PSCs and benefits the film quality. As a result, the defects of perovskite film are effectively passivated by this method. A better perovskite/PCBM heterojunction is generated, exhibiting an increased film coverage and improved film morphology of PCBM. It is found that this technology results in an improved electron transporting performance as well as suppressed charge recombination for electron transport layer. As a result, PSCs based on the one-step formed perovskite/PCBM heterojunctions exhibit the optimized power conversion efficiency of 15.69% which is about 37% higher than that of regular perovskite devices. The device environmental stability is also enhanced due to the quality improved electron transport layer.

scholarly journals Surface passivation using n-type organic semiconductor in two-dimensional perovskite solar cells

2021 ◽  
Author(s):  
Xiaoyin Xie ◽  
Fanming Zeng ◽  
Helong Wang ◽  
guanchen Liu ◽  
Chongyang Xu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Surface Passivation ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Charge Recombination ◽  
Transport Layer ◽  
Environmental Stability ◽  
Electron Transport Layer ◽  
Two Dimensional

Surface passivation, which has been intensively studied recently, is essential for the perovskite solar cells (PSCs), due to the intrinsic defects in perovskite crystal. A series of chemical or physical methods have been published for passivating the defects of perovskite, which effectively suppressed the charge recombination and enhanced the photovoltaic performance. In this study, the n-type semiconductor of [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) is dissolved in chlorobenzene (CB) for the surface passivation during the spin-coating process for depositing the two-dimensional (2D) perovskite film. This approach simplifies the fabrication process of 2D PSCs and benefits the film quality. As a result, the defects of perovskite film are effectively passivated by this method. A better perovskite/PCBM heterojunction is generated, exhibiting an increased film coverage and improved film morphology of PCBM. It is found that this technology results in an improved electron transporting performance as well as suppressed charge recombination for electron transport layer. As a result, PSCs based on the one-step formed perovskite/PCBM heterojunctions exhibit the optimized power conversion efficiency of 15.69% which is about 37% higher than that of regular perovskite devices. The device environmental stability is also enhanced due to the quality-improved electron transport layer.

Electron-transport-layer-free two-dimensional perovskite solar cells based on a flexible poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) cathode

2021 ◽  
Author(s):  
Zhihai Liu ◽  
Lei Wang ◽  
Chongyang Xu ◽  
Xiaoyin Xie
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Two Dimensional ◽  
High Power Conversion Efficiency ◽  
Long Term Stability

Recently, Ruddlesden–Popper two-dimensional (2D) perovskite solar cells (PSCs) have been intensively studied, owing to their high power conversion efficiency (PCE) and excellent long-term stability. In this work, we fabricated electron-transport-layer-free...

Low-temperature and facile solution-processed two-dimensional TiS2 as an effective electron transport layer for UV-stable planar perovskite solar cells

2018 ◽  
Vol 6 (19) ◽  
pp. 9132-9138 ◽  
Author(s):  
Guannan Yin ◽  
Huan Zhao ◽  
Jiangshan Feng ◽  
Jie Sun ◽  
Junqing Yan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Low Temperature ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Two Dimensional ◽  
Solution Processed ◽  
Effective Electron ◽  
First Time

In this paper, it is demonstrated that two-dimensional TiS2 nanosheets can be applied as an effective ETL in planar PSCs for the first time.

An Er-doped TiO2 phase junction as an electron transport layer for efficient perovskite solar cells fabricated in air

2018 ◽  
Vol 6 (31) ◽  
pp. 15348-15358 ◽  
Author(s):  
Ziqiu Ren ◽  
Jinde Wu ◽  
Na Wang ◽  
Xin Li
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Nano Crystalline ◽  
One Step ◽  
Er Doped ◽  
First Time ◽  
Tio2 Phase

Herein, for the first time, we report the Er-doped nano-crystalline mixed-phase TiO2 synthesized through one-step hydrothermal method as electron transport layer for PSCs.

Suppressing Interfacial Charge Recombination in Electron‐Transport‐Layer‐Free Perovskite Solar Cells to Give an Efficiency Exceeding 21 %

2020 ◽  
Vol 132 (47) ◽  
pp. 21166-21173
Author(s):  
Wu‐Qiang Wu ◽  
Jin‐Feng Liao ◽  
Jun‐Xing Zhong ◽  
Yang‐Fan Xu ◽  
Lianzhou Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Perovskite Solar Cells ◽  
Charge Recombination ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Interfacial Charge

Efficient perovskite solar cells employing a simply-processed CdS electron transport layer

2017 ◽  
Vol 5 (38) ◽  
pp. 10023-10028 ◽  
Author(s):  
Jia Dong ◽  
Jihuai Wu ◽  
Jinbiao Jia ◽  
Leqing Fan ◽  
Yu Lin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Cds Nanoparticles ◽  
Solvothermal Reaction ◽  
Organometal Halide Perovskite ◽  
One Step ◽  
Halide Perovskite

In this report, redispersable CdS nanoparticles are synthesized via a specific one-step solvothermal reaction and are employed as electron-selective materials for organometal halide perovskite solar cells.

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