欢迎访问《人工晶体学报》官方网站,今天是 分享到:

人工晶体学报 ›› 2023, Vol. 52 ›› Issue (8): 1373-1377.

• 研究论文 •    下一篇

Ni掺杂β-Ga2O3单晶的光、电特性研究

陈绍华1, 穆文祥1, 张晋1, 董旭阳1, 李阳1, 贾志泰1,2, 陶绪堂1   

  1. 1.山东大学,新一代半导体材料研究院,晶体材料国家重点实验室,济南 250100;
    2.山东工业技术研究院,济南 250100
  • 收稿日期:2023-03-01 出版日期:2023-08-15 发布日期:2023-08-21
  • 通信作者: 穆文祥,博士,副教授。E-mail:mwx@sdu.edu.cn
    贾志泰,博士,教授。E-mail:z.jia@sdu.edu.cn
  • 作者简介:陈绍华(1998—),男,山东省人,硕士研究生。E-mail:1072114408@qq.com
  • 基金资助:
    国家自然科学基金(52002219,51932004,61975098);广东省重点领域研发计划(2020B010174002);深圳市基础研究计划(JCYJ20210324132014038);111工程2.0(BP2018013)

Optical and Electrical Properties of Ni-Doped β-Ga2O3 Single Crystal

CHEN Shaohua1, MU Wenxiang1, ZHANG Jin1, DONG Xuyang1, LI Yang1, JIA Zhitai1,2, TAO Xutang1   

  1. 1. State Key Laboratory of Crystal Materials, Institute of Novel Semiconductors, Shandong University, Jinan 250100, China;
    2. Shandong Research Institute of Industrial Technology, Jinan 250100, China
  • Received:2023-03-01 Online:2023-08-15 Published:2023-08-21

摘要: 本文使用导模(EFG)法生长了Ni掺杂β-Ga2O3单晶,并通过粉末X射线衍射(PXRD)和劳厄衍射(Laue diffraction)分别验证了其晶体结构和晶体质量。进一步通过紫外-可见-近红外透过光谱及红外透过光谱研究了Ni2+掺杂对β-Ga2O3光学特性的影响,发现其(100)面的紫外截止边为252.9 nm,对应的光学带隙为4.74 eV。此外,阴极荧光(CL)光谱测试结果显示,Ni2+掺杂β-Ga2O3单晶在600~800 nm具有宽带近红外发光特性,有望拓宽β-Ga2O3单晶材料在宽带近红外方面的应用。

关键词: 氧化镓, 宽禁带半导体, 光电性能, 宽带近红外发光, 导模法, Ni掺杂

Abstract: Ni-doped β-Ga2O3 single crystals were grown by edge-defined film-fed growth (EFG) method, and the crystal structure and quality were verified by powder X-ray diffraction (PXRD) and Laue diffraction. The effect of Ni2+ doping on optical properties of β-Ga2O3 was investigated by UV-Vis-NIR transmission spectra and infrared transmission spectra. It is found that the ultraviolet cut-off edge of (100) plane is 252.9 nm and corresponding optical bandgap is 4.74 eV. Furthermore, the broadband near-infrared luminescent property of Ni-doped β-Ga2O3 was discovered by cathodoluminescence (CL) spectroscopy in the range from 600 nm to 800 nm, which is expected to broaden the application of β-Ga2O3 crystal in broadband near-infrared.

Key words: Ga2O3, wide-bandgap semiconductor, optical and electrical property, broadband near-infrared luminescent, EFG method, Ni doping

中图分类号: