[논문/Transactions on Electrical and Electronic Materials] Innovating Process in Heterojunction Back Contact Silicon Solar Cells Using Shadow Metal Masks
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2024-05-02 15:02조회수
52KIURI 박형기 참여연구원 논문
Transactions on Electrical and Electronic Materials. 2024 Apr. doi: https://doi.org/10.1007/s42341-024-00540-5
Innovating Process in Heterojunction Back Contact Silicon Solar Cells Using Shadow Metal Masks
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.
