Chain pyramid texturization for better light trapping and efficiency of silicon solar cells

Zongheng Sun; Wei Chen; Xiaohu Zhang; Miao Xu; Guoguang Xing; Xingqian Chen; Bowen Feng; Haozhen Li; Jiehua Ma; Yan Wang; Xiaolong Du; Yaoping Liu

doi:10.1016/j.solmat.2022.112137

Chain pyramid texturization for better light trapping and efficiency of silicon solar cells

Zongheng Sun, Wei Chen, Xiaohu Zhang, Miao Xu, Guoguang Xing, Xingqian Chen, Bowen Feng, Haozhen Li, Jiehua Ma, Yan Wang, Xiaolong Du, Yaoping Liu

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

To find a more effective light trapping structure for silicon solar cells, a chain pyramid structure was obtained by using texturing additives under alkaline condition. Compared with the conventional random pyramid's reflectivity of 9.78%, the reflectivity of the chain pyramid is reduced to 8.54%, and the structure is more uniform. Optical simulation of chain pyramid shows that as the degree of overlap between the pyramids increases, the proportion of secondary reflection gradually decreases, transforming into higher order reflections. Compared with the PERC solar cells prepared with random pyramid, the J_sc of the cells prepared with the chain pyramid is increased by 0.25 mA/cm², and the efficiency is increased by 0.15%. Subsequent EQE and reflectivity tests show that after the deposition of SiN_x layer, the reflectivity advantage of the chain pyramid is mainly manifested in the short-wave range.

Original language	English
Article number	112137
Journal	Solar Energy Materials and Solar Cells
Volume	251
DOIs	https://doi.org/10.1016/j.solmat.2022.112137
State	Published - Mar 2023
Externally published	Yes

Keywords

Alkaline texturing
Chain pyramid
Light trapping structure
Ray tracing method
Silicon solar cells

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.solmat.2022.112137

Cite this

@article{b7e09ad1d6b548ab9e4604c7eddc66fc,

title = "Chain pyramid texturization for better light trapping and efficiency of silicon solar cells",

abstract = "To find a more effective light trapping structure for silicon solar cells, a chain pyramid structure was obtained by using texturing additives under alkaline condition. Compared with the conventional random pyramid's reflectivity of 9.78%, the reflectivity of the chain pyramid is reduced to 8.54%, and the structure is more uniform. Optical simulation of chain pyramid shows that as the degree of overlap between the pyramids increases, the proportion of secondary reflection gradually decreases, transforming into higher order reflections. Compared with the PERC solar cells prepared with random pyramid, the Jsc of the cells prepared with the chain pyramid is increased by 0.25 mA/cm2, and the efficiency is increased by 0.15%. Subsequent EQE and reflectivity tests show that after the deposition of SiNx layer, the reflectivity advantage of the chain pyramid is mainly manifested in the short-wave range.",

keywords = "Alkaline texturing, Chain pyramid, Light trapping structure, Ray tracing method, Silicon solar cells",

author = "Zongheng Sun and Wei Chen and Xiaohu Zhang and Miao Xu and Guoguang Xing and Xingqian Chen and Bowen Feng and Haozhen Li and Jiehua Ma and Yan Wang and Xiaolong Du and Yaoping Liu",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2023",

month = mar,

doi = "10.1016/j.solmat.2022.112137",

language = "English",

volume = "251",

journal = "Solar Energy Materials and Solar Cells",

issn = "0927-0248",

publisher = "Elsevier",

}

TY - JOUR

T1 - Chain pyramid texturization for better light trapping and efficiency of silicon solar cells

AU - Sun, Zongheng

AU - Chen, Wei

AU - Zhang, Xiaohu

AU - Xu, Miao

AU - Xing, Guoguang

AU - Chen, Xingqian

AU - Feng, Bowen

AU - Li, Haozhen

AU - Ma, Jiehua

AU - Wang, Yan

AU - Du, Xiaolong

AU - Liu, Yaoping

PY - 2023/3

Y1 - 2023/3

N2 - To find a more effective light trapping structure for silicon solar cells, a chain pyramid structure was obtained by using texturing additives under alkaline condition. Compared with the conventional random pyramid's reflectivity of 9.78%, the reflectivity of the chain pyramid is reduced to 8.54%, and the structure is more uniform. Optical simulation of chain pyramid shows that as the degree of overlap between the pyramids increases, the proportion of secondary reflection gradually decreases, transforming into higher order reflections. Compared with the PERC solar cells prepared with random pyramid, the Jsc of the cells prepared with the chain pyramid is increased by 0.25 mA/cm2, and the efficiency is increased by 0.15%. Subsequent EQE and reflectivity tests show that after the deposition of SiNx layer, the reflectivity advantage of the chain pyramid is mainly manifested in the short-wave range.

AB - To find a more effective light trapping structure for silicon solar cells, a chain pyramid structure was obtained by using texturing additives under alkaline condition. Compared with the conventional random pyramid's reflectivity of 9.78%, the reflectivity of the chain pyramid is reduced to 8.54%, and the structure is more uniform. Optical simulation of chain pyramid shows that as the degree of overlap between the pyramids increases, the proportion of secondary reflection gradually decreases, transforming into higher order reflections. Compared with the PERC solar cells prepared with random pyramid, the Jsc of the cells prepared with the chain pyramid is increased by 0.25 mA/cm2, and the efficiency is increased by 0.15%. Subsequent EQE and reflectivity tests show that after the deposition of SiNx layer, the reflectivity advantage of the chain pyramid is mainly manifested in the short-wave range.

KW - Alkaline texturing

KW - Chain pyramid

KW - Light trapping structure

KW - Ray tracing method

KW - Silicon solar cells

UR - http://www.scopus.com/inward/record.url?scp=85142711830&partnerID=8YFLogxK

U2 - 10.1016/j.solmat.2022.112137

DO - 10.1016/j.solmat.2022.112137

M3 - Article

AN - SCOPUS:85142711830

SN - 0927-0248

VL - 251

JO - Solar Energy Materials and Solar Cells

JF - Solar Energy Materials and Solar Cells

M1 - 112137

ER -

Chain pyramid texturization for better light trapping and efficiency of silicon solar cells

Abstract

Keywords

UN SDGs

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