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扬州大学 物理科学与技术学院
收稿:2010-07-30,
修回:2010-8-30,
纸质出版:2011
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陈宝, 孟祥东, 施志明, 曾祥华, 陈小兵. (Li,Cu)掺杂ZnO薄膜的发光性质[J]. 发光学报, 2011,32(3): 245-250
CHEN Bao, MENG Xiang-dong, SHI Zhi-ming, ZENG Xiang-hua, CHEN Xiao-bing. Luminescence Properties of (Li,Cu)-doped ZnO Thin Films[J]. Chinese Journal of Luminescence, 2011,32(3): 245-250
利用溶胶-凝胶(Sol-gel)法在n型Si(100)衬底上制备(Li
Cu)掺杂ZnO薄膜
研究了室温下薄膜的结构、形貌和光致发光性能。研究结果表明
随着Li掺杂浓度的增加
可见光发光强度增加
可见光发射可能是源于单电离氧空位到价带顶以及单电离氧空位到Li替位Zn(Li
Zn
)受主跃迁的双重作用。与此类似
Cu掺杂ZnO薄膜黄绿光部分可能是源于单电离氧空位到价带顶以及单电离氧空位到Cu替位Zn(Cu
Zn
)受主跃迁的双重作用。随着Cu掺杂量的增加
单电离氧空位到Cu替位Zn(Cu
Zn
)受主的跃迁起主导作用。
paper
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