Abstract The effects of annealing temperature on the morphologies, structures and optical properties of ZnO/SnO 2 core/shell nanorod arrays were investigated. It is found that the annealing of the samples in a muffle furnace at temperatures up to 900 °C transformed the nanorods into large particles and produced the Zn 2 SnO 4 phase. The photoluminescence results showed that when the annealing temperature was increased up to 700 °C, the ratio of visible/ultraviolet emission increased and the center of the visible emission shifted from yellow to green. When the annealing temperature was 900 °C, the green emission made a red-shift, and a new broad peak appeared in the spectra. Possible emission mechanisms were also discussed.

中文翻译：

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退火温度对ZnO/SnO2核/壳纳米棒阵列性能的影响

摘要 研究了退火温度对ZnO/SnO 2 核/壳纳米棒阵列的形貌、结构和光学性能的影响。发现在马弗炉中在高达 900 °C 的温度下对样品进行退火，将纳米棒转变为大颗粒并产生 Zn 2 SnO 4 相。光致发光结果表明，当退火温度升高到 700 °C 时，可见光/紫外光发射的比率增加，可见光发射的中心从黄色变为绿色。当退火温度为 900 °C 时，绿色发射红移，光谱中出现新的宽峰。还讨论了可能的排放机制。