From the pl spectrum, the UV emission peak of the sample annealed in vacuum increase clearly and deep-level emi.
从光致发光光谱中发现，真空退火后的样品的紫外光谱峰显著增强，而深能级发射峰几乎消失。
From the pl spectrum, the UV emission peak of the sample annealed in vacuum increase clearly and deep-level emi.
从光致发光光谱中发现，真空退火后的样品的紫外光谱峰显著增强，而深能级发射峰几乎消失。
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