location: Current position: Home >> Scientific Research >> Paper Publications

MOCVD法制备Cu掺杂ZnO薄膜

Hits:

Indexed by:期刊论文

Date of Publication:2011-09-15

Journal:发光学报

Included Journals:EI、PKU、ISTIC、CSCD、Scopus

Volume:32

Issue:9

Page Number:956-961

ISSN No.:1000-7032

Key Words:Cu掺杂ZnO;MOCVD;蓝紫光发射峰;光致发光

Abstract:通过金属有机物化学气相沉积(MOCVD)设备,在c-Al2 03衬底上生长本征和Cu掺杂ZnO( ZnO∶ Cu)薄膜.X射线衍射(XRD)谱观察到未掺杂的ZnO和ZnO∶ Cu样品都呈现出较好的c轴择优取向生长.X射线光电子能谱(XPS)表明Cu已掺入到ZnO薄膜中.利用光致发光(PL)测试对本征ZnO和ZnO∶ Cu进行室温和低温PL测试,在ZnO∶ Cu样品的低温PL谱中观察到一个强度很强、范围很广的蓝紫光发射峰(Blue-violet 发射峰,BV发射峰),范围在2.8~3.3 eV之间,又进一步通过变温PL测试发现随着温度的升高,BV发射峰峰位发生红移,且80 K时BV发射峰高能边出现自由电子向受主能级(eA0)的跃迁发光,并计算了Cu受主离化能.

Pre One:A Study of GaN Grown on SiH4 Pre-Treated 6H-SiC Substrates

Next One:Cu掺杂ZnO 的光致发光光谱