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 journalArticle

59 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 languageEnglish
Article number133311
JournalApplied Physics Letters
Volume93
Issue number13
DOIs
Publication statusPublished - 2008
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Effect of increased surface area of stainless steel substrates on the efficiency of dye-sensitized solar cells'. Together they form a unique fingerprint.

Cite this