한국신재생에너지학회:학술대회논문집
- 2009.11a
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- Pages.364-364
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- 2009
Laser texturing on the surface for improvement of multi-crystalline solar cells
다결정 태양 전지 효율 향상 위한 Laser 표면 texturing
- Kim, Tae-Hoon ;
- Kim, Sun-Young ;
- Ko, Ji-Soo ;
- Park, Hyun-Ho ;
- Kim, Kwang-Ryul ;
- Jo, Chang-Hyun ;
- Shin, Sung-Wook ;
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Choi, Byoung-Deog
- 김태훈 (성균관대학교 정보통신공학부) ;
- 김선용 (성균관대학교 정보통신공학부) ;
- 고지수 (성균관대학교 정보통신공학부) ;
- 박현호 (성균관대학교 정보통신공학부) ;
- 김광열 (성균관대학교 정보통신공학부) ;
- 조창현 ((주) HPK) ;
- 신성욱 ((주) LTS) ;
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최병덕
(성균관대학교 정보통신공학부)
- Published : 2009.11.25
Abstract
The solar cell is in the spotlight as a future green energy source. In the solar cells based on silicon wafer, the improvement of efficiency is one of crucial issues. One of techniques for high efficiency is texturing on the surface of solar cells. We studied the laser texturing on the surface of multi-crystalline silicon solar cells. The laser texturing followed by chemical etching is adequate for the multi-crystalline structure which have random crystallographic directions. We used the fiber laser for texturing and the SiNx as a masking layer for etching process. We investigated the shapes of holes for texturing in the various laser power conditions and analyzed the holes after removal of thermal damages caused by laser ablation through a 3D profiler.