Volume 6, Issue 7 2200204
Research Article

Ultrafast Random-Pyramid Texturing for Efficient Monocrystalline Silicon Solar Cells

Lei Zhu

Lei Zhu

School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou, 215006 China

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Shuai Zou

Corresponding Author

Shuai Zou

School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou, 215006 China

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Mengfei Ni

Mengfei Ni

School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou, 215006 China

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Jianming Ding

Jianming Ding

School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou, 215006 China

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Chengkun Wu

Chengkun Wu

School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou, 215006 China

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Zheng Lu

Zheng Lu

School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou, 215006 China

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Yulian Zeng

Yulian Zeng

School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou, 215006 China

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Xiaoya Ye

Xiaoya Ye

Research & Development Department, Canadian Solar Inc., Suzhou, 215129 China

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Xusheng Wang

Xusheng Wang

Research & Development Department, Canadian Solar Inc., Suzhou, 215129 China

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Ronglei Fan

Ronglei Fan

School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou, 215006 China

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Hua Sun

Hua Sun

School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou, 215006 China

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Baochen Liao

Baochen Liao

School of Information Science and Technology, Nantong University, Nantong, 226019 China

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Yadong Xu

Yadong Xu

School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou, 215006 China

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Mingrong Shen

Mingrong Shen

School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou, 215006 China

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Xiaodong Su

Corresponding Author

Xiaodong Su

School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou, 215006 China

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First published: 23 March 2022
Citations: 6

Abstract

Herein, an ultrafast random-pyramid texturing process is proposed for monocrystalline silicon (mono-Si) solar cells by combining metal-catalyzed chemical etching (MCCE) and the standard alkaline texturing process. Namely, large numbers of artificial defects are introduced on the wafer surface in 3 min by MCCE; therefore, the process duration of alkaline texturing is largely shortened from 420 s for the as-cut wafer to 180 s for the wafer with artificial defects due to its high surface reactivity. Moreover, those tiny artificial defects are apt to form small pyramids, resulting in a better light-trapping performance. As a demonstration, the passivated emitter rear contact solar cell with ultrafast random pyramid texture achieves a power conversion efficiency of 23.02%. Therefore, such a cost-effective ultrafast texturing strategy can open a promising new route toward the mass production of high-efficiency industrial mono-Si solar cells.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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