| 학회 |
한국고분자학회 |
| 학술대회 |
2011년 가을 (10/06 ~ 10/07, 김대중 컨벤션센터) |
| 권호 |
36권 2호 |
| 발표분야 |
유기전자소자용 소재 및 소자(분자전자소재 부문위원회) |
| 제목 |
CNT-PPy composite Counter Electrodes in Dye-Sensitized Solar Cells |
| 초록 |
Modified multiwalled carbon nanotubes (CNTs) and polypyrrole(PPy) composite (CNT-PPy films) deposited by electrochemical polymerization were used as a counter electrode(CE) for dye-sensitized solar cells (DSSCs). The electrochemical polymerization technique of modified CNT-polypyrrole composites were easy to control electro conductivity. CNTs were grafted with poly(styrene sulfonate)(PSSNa) to enhance the dispersion in water. PSS- anion also contribute to the electrochemical polymerization of PPy as dopants. In this study, the electrochemical catalytic activity of modified CNT-PPy composites was optimized with different thickness controlled by the deposition time. The energy conversion efficiency of DSSCs using modified CNT-PPy composite CE reached about 80%, of Pt CE for DSSCs. The electronic properties of modified CNT-polypyrrole composite CEs have been studied electrochemical impedance spectroscopy(EIS) and cyclic voltammetry. |
| 저자 |
윤혜진, 황대섭, 조성무, 김동영
|
| 소속 |
한국과학기술(연) |
| 키워드 |
DSSC CE; electropolymerization; CNT-PPy composite
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| E-Mail |
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