| 학회 |
한국화학공학회 |
| 학술대회 |
2013년 봄 (04/24 ~ 04/26, 광주 김대중컨벤션센터) |
| 권호 |
19권 1호, p.459 |
| 발표분야 |
에너지 |
| 제목 |
Dye Sensitized Solar Cell Based on Highly Ordered TiO2 Nanorods Photoelectrode |
| 초록 |
The highly ordered tetragonal TiO2 NRs were synthesized on FTO substrates with ethanol/DI water (80:20 v/v) as the precursor solution by a single step hydrothermal synthesis at 150oC. With ethanol/DI water (80:20 v/v) as solvent, the highly ordered tetragonal TiO2 NRs were obtained on FTO substrates with the average lengths of ~2-4 mm and diameters ~50-70 nm respectively while, the round headed and distorted hexagonal TiO2 NRs were formed with ethanol/DI water ratios of 50:50 v/v and 0:100 v/v as the precursor solutions respectively. XPS studies evidenced that the grown TiO2 NRs exhibited the O:Ti stoichiometric ratio of 2:1 with lower impurities of carbon species. A solar-to-electricity conversion efficiency of ~3.2% was achieved by DSSC, fabricated with highly ordered tetragonal TiO2 NRs photoanode, whereas DSSC with the distorted hexagonal TiO2 NRs photoanode showed inferior overall conversion efficiency (~1.08%). The improved photovoltaic performance was credited to the highly ordered morphology of the TiO2 NRs, which executed the high charge collection and the transfer of electrons at the interfaces of the TiO2 NRs photoanode and the electrolyte layer. |
| 저자 |
송민우, 서형기, Sadia Ameen, 모흐드 나짐, 신형식
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| 소속 |
전북대 |
| 키워드 |
DSSC TiO2 |
| E-Mail |
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| 원문파일 |
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