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다이아몬드 와이어에 의해 절단된 다결정 실리콘 태양전지의 나노텍스쳐링 및 후속 식각 연구

Title
다이아몬드 와이어에 의해 절단된 다결정 실리콘 태양전지의 나노텍스쳐링 및 후속 식각 연구
Other Titles
Nanotexturing and Post-Etching for Diamond Wire Sawn Multicrystalline Silicon Solar Cell
Author
유봉영
Keywords
Diamond wire sawn multicrystalline silicon; Solar cell; Nanotexturing; Post-etching
Issue Date
2016-11
Publisher
한국표면공학회
Citation
한국표면공학회지, v. 49, No. 3, Page. 301-306
Abstract
The effects of nanotexturing and post-etching on the reflection and quantum efficiency properties of diamond wire sawn (DWS) multicrystalline silicon (mc-Si) solar cell have been investigated. The chemical solutions, which are acidic etching solution (HF-HNO3), metal assisted chemical etching (MAC etch) solutions (AgNO3- HF-DI, HF-H2O2-DI) and post-etching solution (diluted KOH at 80oC), were used for micro- and nano-texturing at the surface of diamond wire sawn (DWS) mc-Si wafer. Experiments were performed with various postetching time conditions in order to determine the optimized etching condition for solar cell. The reflectance of mc-Si wafer texturing with acidic etching solution showed a very high reflectance value of about 30% (w/o anti-reflection coating), which indicates the insufficient light absorption for solar cell. The formation of nano-texture on the surface of mc-Si contributed to the enhancement of light absorption. Also, post-etching time condition of 240 s was found adequate to the nano-texturing of mc-Si due to its high external quantum efficiency of about 30% at short wavelengths and high short circuit current density (Jsc) of 35.4 mA/cm2.
URI
http://www.dbpia.co.kr/Journal/ArticleDetail/NODE06703383https://repository.hanyang.ac.kr/handle/20.500.11754/102970
ISSN
1225-8024
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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