Cathodoluminescence Properties of ZnO Tower-Like Structures Prepared by Thermal Oxidation

Zhiyan Xiao; Morihro Okada; Masayoshi Ichimiya; Tadashi Itoh; Gui Han; Yoichiro Neo; Toru Aoki; Hidenori Mimura

doi:10.1380/ejssnt.2009.358

Conference -ICSFS-14-

Cathodoluminescence Properties of ZnO Tower-Like Structures Prepared by Thermal Oxidation

Zhiyan Xiao, Morihro Okada, Masayoshi Ichimiya, Tadashi Itoh, Gui Han, Yoichiro Neo, Toru Aoki, Hidenori Mimura

著者情報

キーワード: ZnO tower-like structures, Cathodoluminescence, Surface defect, Penetration depth

ジャーナルフリー

2009 年 7 巻 p. 358-361

DOI https://doi.org/10.1380/ejssnt.2009.358

詳細

抄録

ZnO tower-like structures with hexagonal cross section were fabricated by a thermal oxidation method. Spatially resolved cathodoluminescence (CL) intensity images were employed to correlate the luminescent properties with the investigated structure. Local CL monochromatic images revealed that the bodies of ZnO tower-like structures were the major source for a strong green emission. The depth-resolved UV and green CL emissions were examined by changing the accelerating voltage. A part of reabsorbed UV emission is converted into green emission and partly contributes the enhancement of green emission. [DOI: 10.1380/ejssnt.2009.358]

責任著者(Corresponding author)

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