화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2010년 가을 (10/21 ~ 10/22, 대전컨벤션센터)
권호 16권 2호, p.2014
발표분야 재료
제목 Fabrication and characterization of n-ZnO nanorods/p+-TiO2 heterojunction devices
초록 Trivalent/bivalent metal ions doped p+-TiO2 were prepared wet-chemically and the solution was deposited on indium tin oxide (ITO) coated glass substrates by spin coating method. Vertically aligned n-ZnO nanorods were grown on p+-TiO2/ITO/glass substrates by a seed layer assisted growth technique. Current(I)-voltage(V) characteristics for the Ag/n-ZnO nanorod/p+-TiO2/ITO assembly showed rectifying behaviour with relatively small turn-on (V0) voltages. The effect of thickness and morphologies of n-ZnO and the composition ofp+-TiO2 thin films on the electrical properties were studied. X-ray photoelectron spectroscopy (XPS) confirmed Ti4+ oxidation state of the Ti2p band in the doped p+-TiO2.
저자 Soumen Das, 김진환, 김대영, 최철민, 한윤봉
소속 전북대
키워드 Thin film; Bipolar device; XPS
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