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학술지 Promising Efficiency Enhancement in Cobalt Redox Couple-based Backilluminated Dye-sensitized Solar Cells with Titanium Foil Substrate
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저자
김명, 윤호경, 장이운, 전대우, 강만구, 윤정훈, 김주미, 박종혁, 이인환, 김점종
발행일
201503
출처
Journal of Power Sources, v.278, pp.32-37
ISSN
0378-7753
출판사
Elsevier
DOI
https://dx.doi.org/10.1016/j.jpowsour.2014.12.057
협약과제
14PB5300, 400㎠의 면적에서 효율 7% 이상을 갖는 유기 태양전지 서브 모듈 및 이를 위한 소재, 장비, 생산 공정 기술 개발, 윤호경
초록
We demonstrate that a [Co(bpy)3]2+/3+ (PF6)2/3 redox couple is an effective strategy for cost-effective and highly efficient dye-sensitized solar cells (DSSCs). Their high transmittance and large complex size make cobalt redox couples advantageous in back-illuminated devices. Furthermore, the use of thin TiO2 films, together with the naturally formed blocking layer at the outermost surface of Ti substrate, effectively alleviate the drawbacks of cobalt electrolyte. By virtue of these simultaneous effects, we achieve a highly promising power conversion efficiency of 7.12%.
키워드
Back illumination, Cobalt electrolyte, Dye-sensitized solar cells (DSSCs), Metal foil, Organic dye
KSP 제안 키워드
Cobalt electrolyte, Complex size, Conversion efficiency(C.E.), Dye-sensitized solar cells(DSCs), High transmittance, Metal foil, Organic dye, Simultaneous effects, Ti substrate, Titanium foil, back illumination