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PLD方法制备的ZnO纳米柱结构及光学特性

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Indexed by:期刊论文

Date of Publication:2010-04-15

Journal:发光学报

Included Journals:EI、PKU、ISTIC、CSCD

Volume:31

Issue:2

Page Number:261-264

ISSN No.:1000-7032

Key Words:ZnO纳米柱;脉冲激光沉积;PL;XRD

Abstract:采用无催化脉冲激光沉积(PLD)方法,在 InP(100)衬底上生长纳米ZnO柱状结构.采用扫描电子显微镜(SEM)、X射线衍射(XRD)以及光致发光(PL)谱等表征手段对ZnO纳米柱的形貌、晶体结构和光学特性进行了观察.SEM图像观察到ZnO纳米柱状结构具有一定的取向性;XRD测试在 2θ=34.10°处观测到强的ZnO(002)衍射峰,证实ZnO纳米柱具有较好的c轴择优取向;室温PL谱在379 nm处观察到了强的自由激子发射峰(半峰全宽为19 nm),未探测到深能级跃迁发射峰,表明生长的纳米ZnO结构具有很高的光学质量.

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