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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.
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