학회 |
한국재료학회 |
학술대회 |
2007년 가을 (11/02 ~ 11/02, 성균관대학교) |
권호 |
13권 2호 |
발표분야 |
나노생체재료 |
제목 |
Enhanced Photochemical Response of TiO2/CdSe Heterostructured Nanowires |
초록 |
High-density single crystalline TiO2 nanowires were successfully grown on Ti substrates by chemical vapor deposition at a low temperature of 700 oC and within a remarkably short time period of 5 min. They were combined with CdSe nanocrystals to form TiO2/CdSe heterotructured nanowire by overcoating the nanowires with the CdSe-containing solution and subsequent annealing at 600 oC arrays. The TiO2/CdSe nanowire arrays showed uniformly-distributed CdSe nanocrystals, and high crystallinty of rutile and wurztite from the TiO2 and the CdSe, respectively. Owing to the heterostructure of the TiO2/CdSe, they demonstrate almost full visible-range light absorption, and thus enhanced photocatalytic activity by the charge separation via electron and hole transfer between the CdSe and the TiO2. |
저자 |
이정철, 성윤모, 곽우철, 노경민, 김민석, 김현수
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소속 |
고려대 |
키워드 |
TiO2; CdSe; nanowires; nanostructures
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E-Mail |
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