SiNx layers on nanostructured Si solar cells: Effective for optical absorption and carrier collection
- 등재 SCIE, SCOPUS
- 발행기관 American Institute of Physics Inc.
- 발행년도 2015
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000119882
- 본문언어 영어
- Published As http://dx.doi.org/10.1063/1.4933202
- 저작권 이화여자대학교 논문은 저작권에 의해 보호받습니다.
초록/요약
We compared nanopatterned Si solar cells with and without SiNx layers. The SiNx layer coating significantly improved the internal quantum efficiency of the nanopatterned cells at long wavelengths as well as short wavelengths, whereas the surface passivation helped carrier collection of flat cells mainly at short wavelengths. The surface nanostructured array enhanced the optical absorption and also concentrated incoming light near the surface in broad wavelength range. Resulting high density of the photo-excited carriers near the surface could lead to significant recombination loss and the SiNx layer played a crucial role in the improved carrier collection of the nanostructured solar cells. © 2015 AIP Publishing LLC.
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