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。
Meanwhile, the trend of porosity and PL spectrum with changing etching time confirm that it is necessary for improving PL intensity to increase porosity.
同时，孔隙率和光致发光谱随腐蚀时间的变化趋势证实了提高孔隙率是提高多孔硅发光强度的必要条件。
The photoluminescence (PL) spectrum indicates that the GaN nanowires have good emission property.
光致发光谱显示制备的氮化稼纳米线有良好的发光特性。
Using the testing method of PL spectra, XRD, TEM and SEM, the properties of composite phosphor were identified, including spectrum, structure, granularity and appearance.
利用PL光谱、XRD、TEM、SEM分析手段，对纳米复合荧光粉的光谱、结构、粒度、形貌进行了表征。
The optical properties were investigated by UV-vis-NIR spectroscopy and photoluminescence (PL) spectrum.
其光学性质经过紫外可见光、光致发光光谱测试。
The optical properties were investigated by UV-vis-NIR spectroscopy and photoluminescence (PL) spectrum.
其光学性质经过紫外可见光、光致发光光谱测试。
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