Optical and electrical properties of high-quality Ti2O3 epitaxial film grown on sapphire substrate

doi:10.1007/s00339-016-0415-y

	Optical and electrical properties of high-quality Ti2O3 epitaxial film grown on sapphire substrate
	Yang, Zhou 2; Liu, Shengzhong 2,4; Yin, Mingli 1,2; Fan, Haibo 2,3; Wang, Mingzi 3; Ren, Xianpei 2
刊名	APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
	2016-11-01
卷号	122 期号:11
ISSN号	0947-8396
DOI	10.1007/s00339-016-0415-y
文献子类	Article
英文摘要	Epitaxial film of Ti2O3 with high crystalline quality was grown on Al2O3 substrate by pulsed laser deposition process using a powder-pressed TiO2 target in active O-2 flow. X-ray diffraction clearly reveals the (0006) crystalline Ti2O3 orientation and its (10 (0) over bar0)(Ti2O3) parallel to(10 (1) over bar0)(sapphire) in-plane epitaxial relationship with the substrate. Scanning electron microscopy images show that the film grew uniformly on the substrate with a Volmer-Weber mode. High-resolution transmission electron microscopy and selected area electron diffraction further confirm the high crystalline quality of the film. Transmittance spectrum shows that the Ti2O3 film is highly transparent in 400-800 nm with the optical band gap estimated to be 3.53 eV by Tauc plot. The temperature-dependent Hall effect measurement indicates that the Ti2O3 film appears to be n-type semiconductor with carrier concentration, mobility, and resistivity showing typical temperature-dependent behavior. The donor ionization energy was estimated to be 83.6 meV by linear relationship of conductivity versus temperature.
WOS关键词	PHOTOCATALYTIC ACTIVITY ; TITANIUM-OXIDES ; THIN-FILMS ; TIO2 ; TRANSITION ; TEMPERATURE ; CONVERSION ; CRYSTALS ; ANATASE ; RUTILE
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000387126600029
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/169830]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Liu, Shengzhong; Fan, Haibo
作者单位	1.Xian Technol Univ, Sch Sci, Xian 710062, Shaanxi, Peoples R China 2.Shaanxi Normal Univ, Key Lab Appl Surface & Colloid Chem, Shaanxi Engn Lab Adv Energy Technol, Natl Minist Educ,Sch Mat Sci & Engn, Xian 710119, Peoples R China 3.Northwest Univ, Sch Phys, Xian 710069, Peoples R China 4.Chinese Acad Sci, Dalian Natl Lab Clean Energy, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Yang, Zhou,Liu, Shengzhong,Yin, Mingli,et al. Optical and electrical properties of high-quality Ti2O3 epitaxial film grown on sapphire substrate[J]. APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING,2016,122(11).
APA	Yang, Zhou,Liu, Shengzhong,Yin, Mingli,Fan, Haibo,Wang, Mingzi,&Ren, Xianpei.(2016).Optical and electrical properties of high-quality Ti2O3 epitaxial film grown on sapphire substrate.APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING,122(11).
MLA	Yang, Zhou,et al."Optical and electrical properties of high-quality Ti2O3 epitaxial film grown on sapphire substrate".APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING 122.11(2016).