Synthesis and photoluminescence properties of ZnMnS nanobelts
Synthesis and photoluminescence properties of ZnMnS nanobelts
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DOI：
10.1063/1.1687985
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发表时间：
2004-03
影响因子：
4
通讯作者：
B. Geng;L. Zhang;G. Wang;T. Xie;Y. Zhang;G. Meng
中科院分区：
文献类型：
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作者：
B. Geng;L. Zhang;G. Wang;T. Xie;Y. Zhang;G. Meng
以乙酰丙酮酸盐和硫化氢为原料，采用热蒸发法制备了掺锰的硫化锌纳米带，该纳米带具有均匀的六方纤锌矿单晶结构，沿[001]方向生长。用X射线衍射仪、能谱分析和光致发光(PL)谱对未掺杂的ZnS纳米带和含1%、3%和5%Mn的ZnMnS纳米带进行了表征。光致发光测量表明，随着掺锰比例的增加，发光效率增加，发光峰向长波方向移动，掺杂导致了纳米带缺陷相关发射的变化。
Mn-doped ZnS nanobelts have been prepared through a thermal evaporation method starting with a mixture of acetylacetonates and H2S at 900 °C. The nanobelts had a uniform single-crystal hexagonal wurtzite structure and grew along [001] direction. Undoped ZnS nanobelts and ZnMnS nanobelts with 1%, 3%, and 5% Mn so obtained have been characterized by x-ray diffraction, energy dispersive x-ray analysis, and photoluminescence (PL) spectra. PL measurements showed that the fluorescence efficiencies increased and the glow peaks shifted to longer wavelengths as the Mn-doped ratios increased, and the doping was found responsible for the changes in the defect-related emission of the ZnS nanobelts.