학회 | 한국화학공학회 |
학술대회 | 2012년 봄 (04/25 ~ 04/27, 제주 ICC) |
권호 | 18권 1호, p.39 |
발표분야 | 고분자 |
제목 | Application of Dye-Sensitized Solar Cell with Vertically Aligned TiO2 Nanorods employing Various Type Electrolytes |
초록 | We present a facile and effective method to prepare vertically aligned TiO2 nanorods (NRs) with a high density and rutile/anatase mixture phases on transparent conducting oxide (FTO) glasses. Following application of a hydrothermal process and calcination at 450 oC, vertically well-aligned TiO2 NRs with diameters of 70 nm and lengths of 3 μm were generated, as confirmed by field emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD). The anatase TiO2 nanoparticles grafted with hydrophilic poly(oxyethylene) methacrylate (POEM), which can coordinate to a TiO2 precursor such as Ti(BuO4), were introduced in the presence of glycine.When liquid electrolyte was used, the DSSC exhibited an efficiency of 5.7 % at 100 mW/cm2, which is the highest value for DSSCs fabricated with NRs directly grown on TCO substrates. Also, high cell efficiencies of 4.5 and 3.7 % were also obtained with quasi-solid-state and solid-state electrolytes, respectively. |
저자 | 고종관, 박정태, 지원석, 정예은, 김종학 |
소속 | 연세대 |
키워드 | dye-sensitized solar cells (DSSC); nanorods; transparent conducting oxide; TiO2; solid-state |
원문파일 | 초록 보기 |