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학술지 Effect of Increased Surface Area of Stainless Steel Substrates on the Efficiency of Dye-sensitized solar Cells
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저자
윤호경, 전용석, 김종대, 배병수, 강만구
발행일
200810
출처
Applied Physics Letters, v.93 no.13, pp.1-3
ISSN
0003-6951
출판사
American Institute of Physics (AIP)
DOI
https://dx.doi.org/10.1063/1.2996017
협약과제
08MB1800, 유비쿼터스 단말용 부품 모듈, 김종대
초록
In order to increase the electrical contact area between Ti O2 particles and stainless steel (StSt) substrates of the dye-sensitized solar cells (DSSCs), StSt foil was roughened electrochemically using sulfuric acid with some additives. Compared with the DSSC with nontreated StSt substrate, DSSC with this roughened StSt substrate showed a 33% increase in light-to-electricity conversion efficiency with negligible effect on open circuit voltage (Voc) and fill factor. Electrochemical impedance spectroscopy clearly confirmed that the increased performance was due to a decreased electrical resistance at the Ti O2 /StSt interface. © 2008 American Institute of Physics.
KSP 제안 키워드
Contact area, Conversion efficiency(C.E.), Dye-sensitized solar cells(DSCs), Electrical Resistance, Impedance spectroscopy(IS), Light-to-electricity conversion efficiency, Open circuit voltage(VOC), Stainless steel(SUS316), Stainless steel substrate, Sulfuric acid(SA), Surface Area