Research on Minimizing Output Degradation in HJT Cell Separation Using IR Laser Scribing

Eunbi Lee; Sungmin Youn; Minseob Kim; Jinho Shin; Yu Jin Kim; Jeonghun Kim; Min-Joon Park; Chaehwan Jeong

doi:10.21218/CPR.2024.12.2.037

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Research on Minimizing Output Degradation in HJT Cell Separation Using IR Laser Scribing IR 레이저 스크라이빙에 의한 HJT 셀 분할 시 출력 감소율 최소화에 대한 연구

30 June 2024. pp. 37-40

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Abstract

One of the current innovation trends in the solar industry is the increase in the size of silicon wafers. As the wafer size increases, the series resistance of the module rises, highlighting the need for research on methods for cutting and bonding solar cells. Among these, the Infrared (IR) laser scribing technique has been extensively researched. However, there is still insufficient optimization research regarding the thermal damage caused by lasers on the Transparent Conductive Oxide (TCO) layer of Heterojunction (HJT) solar cells. Therefore, in this study, we systematically varied conditions such as IR laser scribing speed, frequency, power, and the number of scribes to investigate their impact on the performance of cut cells under each condition. Additionally, we conducted a comparative analysis of thermal damage effects on the TCO layer based on varying scribing depths.

Keywords

Cell separation process

Infrared laser

Heterojunction solar cells

Transparent Conductive Oxide

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Information

Publisher :Korea Photovoltaic Society
Publisher(Ko) :한국태양광발전학회
Journal Title :Current Photovoltaic Research
Volume : 12
No :2
Pages :37-40
Received Date : 2024-04-16
Revised Date : 2024-06-14
Accepted Date : 2024-06-17
DOI :https://doi.org/10.21218/CPR.2024.12.2.037

Current Photovoltaic Research ISSN:2288-3274(Print) 2508-125X(Online)

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