Effect of increased surface area of stainless steel substrates on the efficiency of dye-sensitized solar cells

Ho Gyeong Yun; Yongseok Jun; Jongdae Kim; Byeong Soo Bae; Man Gu Kang

doi:10.1063/1.2996017

Effect of increased surface area of stainless steel substrates on the efficiency of dye-sensitized solar cells

Ho Gyeong Yun, Yongseok Jun, Jongdae Kim, Byeong Soo Bae, Man Gu Kang

Research output: Contribution to journal › Article › peer-review

63 Citations (Scopus)

Abstract

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.

Original language	English
Article number	133311
Journal	Applied Physics Letters
Volume	93
Issue number	13
DOIs	https://doi.org/10.1063/1.2996017
Publication status	Published - 2008
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Effect of increased surface area of stainless steel substrates on the efficiency of dye-sensitized solar cells",

abstract = "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.",

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AU - Yun, Ho Gyeong

AU - Jun, Yongseok

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AU - Bae, Byeong Soo

AU - Kang, Man Gu

PY - 2008

Y1 - 2008

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AB - 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.

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Effect of increased surface area of stainless steel substrates on the efficiency of dye-sensitized solar cells

Abstract

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