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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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纳米zns:cd的光致发光特性
Keywords: 光致发光,纳米晶,zns,cd{2+}-掺杂
Abstract:
？研究了cd{2+}掺杂的zns纳米晶的光致发光特性,结果表明,当cd的掺杂量较低时(≤5%,摩尔分数),zns纳米晶试样的荧光强度显著提高,cd的掺杂量为0.5%时,掺杂试样的相对荧光强度约为未掺杂试样的5倍,发射光谱明显宽化.随着cd含量的提高,试样的激发光谱(350nm→488nm)和发射光谱(由蓝→绿→红)红移,当cd含量≥5%时,其发射光谱与cds纳米晶一致,但荧光强度比cds纳米晶高.xrd分析显示,掺杂试样的晶格结构由cd的掺杂量决定.
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