- 글번호
- 82557
- 작성일
- 2022.10.19
- 수정일
- 2022.10.19
- 작성자 최경희
- 조회수
- 214
세미나 개최 안내 (2022.11.03 18시_오프라인)
태양전지 전문가를 모시고 아래와 같이 세미나를 개최할 예정이오니 많은 참여 바랍니다.
◆ 세미나 제목 : Flexible ultra-thin crystalline Si solar cells
◆ 일시 : 2022. 11. 3 (목) 18:00 ~ 19:00
◆ 장소 : 60주년 107호
◆ 연사 : 김인호 책임연구원 (KIST 차세대반도체연구소/인공뇌융합연구단)
◆ 초록: Ultra-thin (UT) crystalline-Si wafers (< 50um) have advantages such as mechanical flexibility and light weight compared to conventional solar-grade Si wafers with a thickness of 200 μm. UT crystalline-Si solar cells offer many features that conventional Si solar cells cannot, but technical challenges, from wafering and texturing to cell processing, have hampered industrial adoption. In this talk, UT-Si wafer compatible cell technologies such as kerfless wafering, nanotexturing, and laser cell processing will be introduced. Proton-induced ablation is one of the promising kerfless techniques due to the simplicity of the implantation and cleaving process. However, for application to high-efficiency solar cells, it is necessary to deal with several problems, such as removal of implantation damage and texturing of (111) oriented wafers. We have developed an effective damage removal process and successfully demonstrated a high-efficiency solar cell based on a kerf-free thin Si wafer less than 50 μm thickness produced by a MeV implanter. The fabrication of silicon (Si) nanostructures has received great attention due to its great potential for advanced optical and electrical advantages that distinguish it from bulk Si materials. We have developed a variety of nanotexturing techniques that are particularly suitable for UT-Si wafers. When it comes to cell processing, we introduce a new laser firing cell technology to overcome limiting factors such as thin wafer warpage and laser-induced damage. To avoid unnecessary heat energy transfer to the Si wafer, a three-step laser process is proposed and its application for UT-Si solar cells is demonstrated. Finally, we describe the application of UT-Si wafers as bottom cells for metal halide perovskite tandem solar cells.
◆ 문의 : 함형철 교수, 032-860-7467, ham.hyungchul@inha.ac.kr
* COVID-19로 인해 마스크 착용 필수 입니다.
* 학부 및 대학원생 특강 인정 됩니다.
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