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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Aging effects on the optical properties of an individual Zn-rich ZnO nanowire
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Aging effects on the optical properties of an individual Zn-rich ZnO nanowire

机译：老化对单个富锌ZnO纳米线光学特性的影响

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摘要

Zn-rich ZnO nanowires are fabricated by a facile thermal evaporation method. The aging and post-annealing effects on an individual nanowire are investigated by cathodoluminescence (CL) spectra. For the nanowire aged in air, the intensity of deep-level (DL) emission is gradually strong with aging time, while are almost unchanged if aged in Ar atmosphere. Whether the individual nanowire was post-annealed in air or Ar atmosphere, the intensity of DL emission was gradually enhanced with temperature. Moreover, blue-shift of the DL emission is detected in the nanowire annealed in air. Nevertheless, for the nanowire annealed in Ar, the DL emission is first blue-shift at temperature of 400 °C, then red-shift at 500 and 600 °C. It is found that different defects can induce different DL emission, and the type of defects varies in the products depending on the experimental conditions.
机译：富锌的ZnO纳米线是通过简便的热蒸发方法制造的。通过阴极发光（CL）光谱研究了单个纳米线上的老化和退火后效应。对于在空气中老化的纳米线，深层（DL）发射强度会随着老化时间的增加而逐渐增强，而在Ar气氛中老化则几乎不变。无论单个纳米线是在空气中还是在Ar气氛中进行后退火，DL发射的强度都会随着温度的升高而逐渐增强。而且，在空气中退火的纳米线中检测到DL发射的蓝移。然而，对于在Ar中退火的纳米线，DL发射首先在400°C的温度下发生蓝移，然后在500和600°C时发生红移。发现不同的缺陷会引起不同的DL发射，并且产物的缺陷类型根据实验条件而变化。

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