| 학회 |
한국고분자학회 |
| 학술대회 |
2011년 봄 (04/07 ~ 04/08, 대전컨벤션센터) |
| 권호 |
36권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
polypyrrole nanoparticles as a counter electrode for highly efficient dye-sensitized solar cells |
| 초록 |
Spherical polypyrrole (PPy) nanoparticles with a uniform diameter of ~85 nm and electrical conductivity of ~10 S/cm were fabricated by chemical oxidative polymerization within micelles composed of myristyl trimethyl ammonium bromide (MTAB) and decyl alcohol as nanoreactors. A methanol-based colloidal dispersion containing 5wt% PPy was dropcast directly onto fluorine-doped tin oxide (FTO) glass to use as counter electrodes (CEs) in dye-sensitized solar cells (DSSCs). The DSSCs made of PPy/FTO and HCl-doped PPy/FTO CEs exhibited power conversion efficiencies of ~5.28 and ~6.83% under standard AM 1.5 sunlight illumination, respectively. The post-doped and highly oxidized PPy allowed the electrons to move into the PPy layer readily and facilitated the electrocatalytic reaction of the I3/I redox couple, giving enhanced cell performance. Moreover, the cell efficiency was enhanced to ~7.73% with further fine tuning of the electrolyte composition. |
| 저자 |
전상수, 임승순
|
| 소속 |
한양대 |
| 키워드 |
polypyrrole; counter electrode; dye-sensitized solar cell
|
| E-Mail |
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