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O_2流量对ZnO形貌和发光性质的影响
田会娟
2016
Source Publication化工新型材料
Issue9Pages:"142-144"
Abstract

采用热蒸发Zn粉的化学气相沉积方法研究了氧气(O_2)流量对产物形貌和光致发光性质的影响,并采用计算流体动力学软件FLUENT模拟了O_2和锌蒸汽的浓度分布。扫描电镜照片和模拟结果显示:在O_2流量从0.06sccm到2sccm变化过程中,纳米ZnO结构从一维针状和棒状结构向三维花状结构转变。较小的O/Zn比有利于形成一维产物,较大的O/Zn比有利于生成三维产物。X射线衍射谱图说明,在合适的O_2流量下,更多的晶粒沿着c轴择优生长。光致发光谱图和模拟结果说明:随着O_2流量的增加,产物绿光发射峰强度相对减弱,紫外发射峰相对强度增加,绿光发射峰是由O空位引起的。

Keyword化学气相沉积 模拟 纳米zno 浓度分布
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/22410
Collection研究所(批量导入)
Recommended Citation
GB/T 7714
田会娟. O_2流量对ZnO形貌和发光性质的影响[J]. 化工新型材料,2016(9):"142-144".
APA 田会娟.(2016).O_2流量对ZnO形貌和发光性质的影响.化工新型材料(9),"142-144".
MLA 田会娟."O_2流量对ZnO形貌和发光性质的影响".化工新型材料 .9(2016):"142-144".
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