Effects of sulfur introduction on the UV and the visible emission properties of ZnO
Effects of sulfur introduction on the UV and the visible emission properties of ZnO
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DOI：
10.3938/jkps.66.672
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发表时间：
2015-03
影响因子：
0.6
通讯作者：
Hongying Guo;F. Jiang;Run Yuan;Jun Zhang;Yuanping Sun;Yifan Liu;Y. Qiu;Taofei Zhou;
中科院分区：
文献类型：
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作者：
Hongying Guo;F. Jiang;Run Yuan;Jun Zhang;Yuanping Sun;Yifan Liu;Y. Qiu;Taofei Zhou;
采用水热法制备了不同硫含量的六方氧化锌颗粒。通过结构和光学表征，研究了反应溶液中硫对合成的氧化锌在紫外区和可见光区性能的影响。溶液中硫的存在有助于沿a轴引入压缩应变，而参数c与形成的氧化锌颗粒内部应变的变化趋势相反，即样品中的总应变是沿c轴出现的。从扫描电子显微镜图像计算出的氧化锌颗粒的平均尺寸与样品中的应变显示出相同的趋势。随着硫掺杂量的增加，可见光发光带增加，这可以归因于硫诱导缺陷数目的增加。
Hexagonal ZnO particles have been synthesized by using the hydrothermal method with different sulfur concentrations in the reaction solutions. Structural and optical characterizations have been conducted to study the effects of the sulfur in the reaction solutions on the properties of the synthesized ZnO in the ultraviolet (UV) and the visible (VIS) bands. The existance of sulfur in the solutions can help to introduce compression strain along the a axis and an opposite trend for the parameter c with strain inside the formed ZnO particles, which means the total strain in the samples is presented along the c axis. The average size of the ZnO particles, as calculated from SEM images, shows the same trend as the strain in the samples. The increasing incorporation of sulfur causes an increase in the VIS luminescence band, which can be attributed to an increase in the number of sulfur-induced defects.