| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 봄 (04/08 ~ 04/10, 대전컨벤션센터) |
| 권호 |
40권 1호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Doubly open-ended TiO2 nanotubes decorated with a few nm-sized TiO2 nanoparticles for highly efficient dye-sensitized solar cells |
| 초록 |
Doubly open-ended TiO2 nanotube (NT) arrays decorated with a few nm-sized TiO2 nanoparticles (sNP@NT hybrid structure) were prepared as charge-collecting photoelectrodes in dye sensitized solar cells (DSCs). The TiO2 nanoparticles (NPs) on the NT array surfaces increased the dye loading on the sNP@NT-based DSCs thereby enhancing the light harvesting capabilities. The power conversion efficiency (PCE) of the sNP@NT-based DSC was 10.0%, which constituted a 47% improvement over the corresponding NT-based DSCs (which displayed a 6.8% PCE). Despite having a dye loading level that was 22% lower than the dye loading level in the conventional TiO2 NP-based DSCs, due to the limited internal surface area, the PCE of the sNP@NT-based DSC was 28% greater than that of the conventional TiO2 NP-based DSC (8.1% PCE) prepared with a light scattering layer. The high charge collection efficiency of the NT array and the good photovoltaic performance set a new record for efficiency among NT-based DSCs. |
| 저자 |
최종민, 박태호
|
| 소속 |
포항공과대 |
| 키워드 |
tio2 nanotube; solar cells; doubly open-ended
|
| E-Mail |
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