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Innovating Process in Heterojunction Back Contact Silicon Solar Cells Using Shadow Metal Masks
- Authors
- Lee, Youngseok; Oh, Donghyun; Park, Hyeong Gi; Yi, Junsin
- Issue Date
- 30-Apr-2024
- Publisher
- Korean Institute of Electrical and Electronic Material Engineers
- Keywords
- Back contact; Carrier transport; Fill factor; Heterojunction; Silicon solar cells
- Citation
- Transactions on Electrical and Electronic Materials
- Indexed
- SCOPUS
ESCI
KCI
- Journal Title
- Transactions on Electrical and Electronic Materials
- ISSN
- 1229-7607
2092-7592
- Abstract
- We present a very simple process to fabricate silicon heterojunction back contact (HBC) solar cell. This process can easily form a backside structure using in situ masks without particular patterning process. Based on our silicon heterojunction (SHJ) solar cell process conditions, we optimize the process for HBC solar cell. The intrinsic a-Si: H layer and p-type a-Si: H layer process conditions were adjusted to improve to FF and efficiency. Applying these adjust, we obtained 18.1% efficiency of the HBC solar cell with VOC of 684 mV, JSC of 38.3 mA/cm2, FF of 69.1%. The key factors affecting FF and performance of the HBC solar cell are also discussed. © The Korean Institute of Electrical and Electronic Material Engineers 2024.
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Related Researcher
- YI, JUN SIN
- Information and Communication Engineering (Electronic and Electrical Engineering)