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학술지 Cell Performance of a-Si:H Translucent Solar Cells with Various Buffers Utilizing Light Reflected by a Backside Mirror
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저자
임정욱, 이다정, 이성현, 윤선진
발행일
201410
출처
Materials Research Bulletin, v.58, pp.153-156
ISSN
0025-5408
출판사
Elsevier
DOI
https://dx.doi.org/10.1016/j.materresbull.2014.03.016
협약과제
13MB2100, 유연성 철강소재기판상에서 효율13%를 갖는 Si/SiGe 탠덤 박막태양전지개발, 윤선진
초록
a-Si:H translucent solar cells with various n/i- buffer layers were fabricated. We employed single buffer and double buffers with different thickness in the fabrication of translucent cells. Compared to the cell without n/i- buffers, cell efficiency increases from 5.7% to 6.5% when double buffer layers were used. For further increase of cell efficiency for translucent cells, a backside mirror that reflects the transmitted light was installed and re-absorption of the reflected light was feasible. Interestingly, it was revealed that the thin double buffered cell was the most effective configuration, acquiring approximately 21% higher efficiency. Proper design of optical thickness and arrangement of buffer layers is required to effectively utilize incident and reflected light. © 2014 Elsevier Ltd. All rights reserved.
키워드
A. Amorphous materials, A. Thin films, B. Optical properties, B. Plasma deposition, D. Electrical properties
KSP 제안 키워드
Buffer layer, Cell Efficiency, Different thicknesses, Double buffer, Effective configuration, Higher efficiency, Optical thickness, Re-absorption, Reflected light, Solar Cells, Transmitted light