| 학회 |
한국고분자학회 |
| 학술대회 |
2008년 봄 (04/10 ~ 04/11, 컨벤션 뷰로(대전)) |
| 권호 |
33권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Characterization of Electrochemical Properties of Dye-Sensitized Solar Cells Employing Solid State Polymer Electrolytes |
| 초록 |
Polymer electrolytes of PEO/PEGDME/XI/I2 for solid state DSSCs were employed where X is either K or 1-methyl-3-propylimidazolium (MPI), and their electrochemical properties were characterized with the electron diffusion phenomenon through TiO2 layer, effective diffusion of I-/I3- in bulk phase, and charge transport at the counter electrode. The electron diffusion coefficients through the TiO2 semiconductor layer were 1~2 x 10-4 and 7~8 x 10-5 cm2/s, respectively, for KI and MPII. The electron diffusion lengths were obtained 19.29um for KI and 7.70um for MPII. The apparent diffusion coefficient of I3- in the polymer electrolyte employing KI was 3 times higher than that employing MPI, while the charge transfer resistances at the counter electrode were 328Ω for KI and 20Ω for MPI. It was therefore concluded that the effects of electrons and ions diffusion on the cell performance in solid state DSSCs were compensated each other, resulting in similar overall energy conversion efficiency. |
| 저자 |
김수진1, 이용건2, 전라선1, 강문성3, 강용수1
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| 소속 |
1한양대, 2서울대, 3삼성종합기술(연) |
| 키워드 |
DSSCs; polymer electrolyte; electron diffusion; charge transport
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| E-Mail |
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