결정질 실리콘 태양전지의 효율개선을 위한 실리콘 역 피라미드 구조체 최적화
- Title
- 결정질 실리콘 태양전지의 효율개선을 위한 실리콘 역 피라미드 구조체 최적화
- Other Titles
- Fabrication of Si Inverted Pyramid Structures by Cu-Assisted Chemical Etching for Solar Cell Application
- Author
- 유봉영
- Keywords
- Solar cell; Inverted pyramid; Maskless; Low reflectance; MaCE
- Issue Date
- 2017-10
- Publisher
- 한국표면공학회
- Citation
- 한국표면공학회지, v. 50, No. 5, Page. 315-321
- Abstract
- Antireflective pyramid arrays can be readily obtained via anisotropic etching in alkaline solution (KOH, NaOH), which is widely used in crystalline-Si (c-Si) solar cells. The periodic inverted pyramid arrays show even lower light reflectivity because of their superior light-trapping characteristics. Since this inverted pyramidal structures are mostly achieved using very complex techniques such as photolithograpy and laser processes requiring extra costs, here, we demonstrate the Cu-nanoparticle assisted chemical etching processes to make the inverted pyramidal arrays without the need of photolithography. We have mainly controlled the concentration of Cu(NO3)2, HF, H2O2 and temperature as well as time factors that affecting the reaction. Optimal inverted pyramid structure was obtained through reaction parameters control. The reflectance of inverted pyramid arrays showed ˂ 10% over 400 to 1100 nm wavelength range while showing 15~20% in random pyramid arrays.
- URI
- http://www.dbpia.co.kr/Journal/ArticleDetail/NODE07257648https://repository.hanyang.ac.kr/handle/20.500.11754/103692
- ISSN
- 1225-8024
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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