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(주)코리아스칼라
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- 2016.04.02
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- 2009.01
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서지정보
ㆍ발행기관 : 한국재료학회
ㆍ수록지정보 : 한국재료학회지 / 19권 / 1호
ㆍ저자명 : 김금채, 이수경, 김상효, 황숙현, 전민현
영어 초록
Multi-walled carbon nanotubes (MWNTs) were synthesized on different substrates (bare Si and SiO2/Si substrate) to investigate dye-sensitized solar cell (DSSC) applications as counter electrode materials. The synthesis of MWNTs samples used identical conditions of a Fe catalyst created by thermal chemical vapor deposition at 900˚C. It was found that the diameter of the MWNTs on the Si substrate sample is approximately 5~10nm larger than that of a SiO2/Si substrate sample. Moreover, MWNTs on a Si substrate sample were well-crystallized in terms of their Raman spectrum. In addition, the MWNTs on Si substrate sample show an enhanced redox reaction, as observed through a smaller interface resistance and faster reaction rates in the EIS spectrum. The results show that DSSCs with a MWNT counter electrode on a bare Si substrate sample demonstrate energy conversion efficiency in excess of 1.4 %.
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