화학공학소재연구정보센터
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
소속 고려대
키워드 TiO2; CdSe; nanowires; nanostructures
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