Fabrication and UV-sensing properties of one-dimensional beta-Ga2O3 nanomaterials

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	Fabrication and UV-sensing properties of one-dimensional beta-Ga2O3 nanomaterials
	Feng, HF ; Hao, WC ; Zhao, CZ ; Xin, XD ; Cheng, JY ; Cui, YM ; Chen, Y ; Wang, WJ
刊名	PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
	2013
卷号	210 期号:9 页码:1861
关键词	chemical vapor deposition Ga2O3 nanostructures ultraviolet sensors
ISSN号	1862-6300
通讯作者	Hao, WC (reprint author), Beihang Univ, Ctr Mat Phys & Chem, Beijing 100191, Peoples R China.
中文摘要	beta-Ga2O3 nanowires and nanobelts with a length range of tens of micrometers to a few millimeters were successfully fabricated by a simple in situ chemical vapor deposition (CVD) method under normal pressure without any catalysts. The morphology and microstructure of the samples were studied by SEM, XRD, and EDS. The results indicated that the morphology of Ga2O3 depends on the effective heating time. Ga2O3 nanostructures were mainly collected at the gallium source position instead of in the downstream area. So, we propose that the growth process can be explained by a vapor-solid (VS) model. The ultraviolet (UV) sensing properties of a single nanowire were tested. From the nonlinear I-V curves, we find that a single nanowire behaves as a rectifier and has asymmetric characteristics. The photoresponse characterization presents that response time and recovery time were about 0.32 and 0.08s, respectively. Our result indicated that a single -Ga2O3 nanowire possesses excellent UV sensing properties and it should be a good candidate for UV-sensor development.
资助信息	National Natural Science Foundation of China [51072012, 51272015]; National Basic Research Program of China [2013CB932901, 2007CB936301]
语种	英语
公开日期	2014-01-16
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/56998]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Feng, HF,Hao, WC,Zhao, CZ,et al. Fabrication and UV-sensing properties of one-dimensional beta-Ga2O3 nanomaterials[J]. PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE,2013,210(9):1861.
APA	Feng, HF.,Hao, WC.,Zhao, CZ.,Xin, XD.,Cheng, JY.,...&Wang, WJ.(2013).Fabrication and UV-sensing properties of one-dimensional beta-Ga2O3 nanomaterials.PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE,210(9),1861.
MLA	Feng, HF,et al."Fabrication and UV-sensing properties of one-dimensional beta-Ga2O3 nanomaterials".PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE 210.9(2013):1861.