| 학회 |
한국화학공학회 |
| 학술대회 |
2008년 봄 (04/23 ~ 04/25, 제주ICC) |
| 권호 |
14권 1호, p.628 |
| 발표분야 |
에너지/환경 |
| 제목 |
Preparation of TiO2 Nanofiber Photoelectrode and Application to Dye-Sensitized Solar Cells |
| 초록 |
TiO2 Photoanodes were prepared using a mixture of TiO2 nano-particles (P90) and the nanofiber with various contents and their application for dye-sensitized solar cells (DSSCs) were investigated. The formed fibers were visualized from transmission electron microscopy (TEM) and X-ray diffraction (XRD). The TiO2 films were characterized by ATR-FTIR, field emission scanning electron microscopy (FE-SEM) and high resolution transmission electron microscopy (HR-TEM). The photoelectrochemical properties of the thin films and the performance of DSSCs were measured by photovoltaic-current density, AC impedance and monochromatic incident photon-to-current conversion efficiency (IPCE). Energy conversion efficiency of approximately 7.0 % has been achieved for cell with conductive glass under illumination with AM 1.5 (100 mWcm-2) simulated sunlight. High efficiency was obtained by TiO2 nanofiber which means large surface area that can help for large amount of dye molecules adsorbed on the surface. DSSCs made of TiO2 nanofiber/nanoparticle films as photoanodes achieved better photo-energy conversion efficiency as compared to those prepared using commercially available Degussa P25 nanoparticle films. |
| 저자 |
백형렬, 박경희, 구할본
|
| 소속 |
전남대 |
| 키워드 |
TiO2 nanofiber; Dye-sensitized solar cell; Photoanode; adsorption
|
| E-Mail |
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| 원문파일 |
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