A DMSO/MOE mixed solvent system for improving the morphology and efficiency of kesterite solar cell

Zhao, Yuqing; Xu, Chaoling; Yu, Na; Zhou, Zhineng; Chen, Yufei; Hu, Xinghuan; Zhang, Ying; Wang, Shurong

doi:10.1016/j.solener.2023.04.044

Cited by 5 publications

(4 citation statements)

References 32 publications

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“…When the volume ratio of DMSO to MOE was 1 : 1, the CZTSSe absorption layer had better contact with the Mo back electrode, the grain size of the absorption layer increased, and the FF and efficiency of the device were improved. 105 3.5 MOE 3.5.1 Properties of MOE solvent. MOE (C 3 H 8 O 2 ) is a colorless, transparent liquid that is miscible with water.…”

Section: Dmsomentioning

confidence: 99%

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A critical review of solution-process engineering for kesterite thin-film solar cells: current strategies and prospects

Fu,

Yang,

Dong

et al. 2024

J. Mater. Chem. A

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Section: Dmsomentioning

confidence: 99%

Section: Present Status Of Solution-processing Routes For High-effici...mentioning

confidence: 99%

A critical review of solution-process engineering for kesterite thin-film solar cells: current strategies and prospects

Fu,

Yang,

Dong

et al. 2024

J. Mater. Chem. A

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“…In 2022, Sun et al prepared CZTSSe thin film solar cells using DMSO/DMF mixed solvents to improve the carrier recombination, resulting in a PCE of 12.9% . In 2023, Zhao et al used DMSO/MOE mixed solvents to improve the grain quality of CZTSSe absorbers, resulting in devices with a PCE of 10.99% . Besides, Xu et al mentioned in 2021 that Sn–TGA coordination can induce large metal organic molecular clusters and play a crucial role in the formation of mesoscopic carbon layers.…”

Section: Introductionmentioning

confidence: 99%

“…23 In 2023, Zhao et al used DMSO/MOE mixed solvents to improve the grain quality of CZTSSe absorbers, resulting in devices with a PCE of 10.99%. 24 Besides, Xu et al mentioned in 2021 that Sn−TGA coordination can induce large metal organic molecular clusters and play a crucial role in the formation of mesoscopic carbon layers. Instead of adding a buffer layer between Mo and CZTSSe that would cause defects, it is better to have the CZTSSe itself create a buffer layer.…”

Section: ■ Introductionmentioning

confidence: 99%

Construction of a Low-Resistivity Carbon Layer To Improve Performance in Dimethyl Sulfoxide-Based Kesterite Solar Cells

Wang,

Yang,

Liu

et al. 2024

ACS Appl. Mater. Interfaces

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Morphology of the absorber plays a decisive role in photoelectric conversion efficiency (PCE) of kersterite solar cells. Cu 2 ZnSn(S,Se) 4 (CZTSSe) grain prepared from dimethyl sulfoxide (DMSO)-based solution easily grows into large grains, which can lead to the formation of some holes at the back of the absorber. These holes cause the recombination of photocarriers and greatly weaken the performance of CZTSSe devices. Here, trace amounts of thioglycolic acid (TGA) are introduced to the DMSO-based solution, and a combination of TGA and metal is formed in the absorber, leading to the formation of fine grains in the CZTSSe absorber. Next, post-annealing (PA) in a N 2 atmosphere is performed to promote Na diffusion, helping the transition from a fine-grain layer to a low-resistivity carbon layer at the interface between CZTSSe and Mo and avoiding the drawbacks of the DMSO-based system. Finally, the champion PCE of the CZTSSe device can be improved to 10.05% from 8.06%. The conclusions demonstrate that the construction of a carbon layer can boost the performance of CZTSSe devices.

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Regulating Air‐Annealing Time for Boosting the Performance of Cu₂ZnSn(S, Se)₄ Solar Cells

Cui,

Zhao,

Yang

et al. 2023

Solar RRL

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Excellent morphology and low harmful defect states of the absorber layer are essential to fabricate the high‐performance Cu2ZnSn(S, Se)4 (CZTSSe) devices. Herein, the annealing time of precursor films in air is proved to have much impact on the quality of absorber layer and the performance of devices. Appropriately extending the air‐annealing time can promote the diffusion of Na into films and O absorption on the surface of precursor films, boost the growth of crystal grain, and lessen the harmful defect density and band‐tailing states of absorber. The appropriate extension of air‐annealing time also regulates the electrical properties of the absorber. The efficiency of CZTSSe devices is enhanced from 6.92% (1 min) to 10.1% (7 min), with the decreased VOC, Def. These enhanced properties demonstrate that regulating the air‐annealing time of precursor films can be a simple and direct way for improving the performance of CZTSSe devices.

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A DMSO/MOE mixed solvent system for improving the morphology and efficiency of kesterite solar cell

Cited by 5 publications

References 32 publications

A critical review of solution-process engineering for kesterite thin-film solar cells: current strategies and prospects

A critical review of solution-process engineering for kesterite thin-film solar cells: current strategies and prospects

Construction of a Low-Resistivity Carbon Layer To Improve Performance in Dimethyl Sulfoxide-Based Kesterite Solar Cells

Regulating Air‐Annealing Time for Boosting the Performance of Cu₂ZnSn(S, Se)₄ Solar Cells

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A DMSO/MOE mixed solvent system for improving the morphology and efficiency of kesterite solar cell

Cited by 5 publications

References 32 publications

A critical review of solution-process engineering for kesterite thin-film solar cells: current strategies and prospects

A critical review of solution-process engineering for kesterite thin-film solar cells: current strategies and prospects

Construction of a Low-Resistivity Carbon Layer To Improve Performance in Dimethyl Sulfoxide-Based Kesterite Solar Cells

Regulating Air‐Annealing Time for Boosting the Performance of Cu2ZnSn(S, Se)4 Solar Cells

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Resources

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Regulating Air‐Annealing Time for Boosting the Performance of Cu₂ZnSn(S, Se)₄ Solar Cells