Homojunction of Oxygen and Titanium Vacancies and its Interfacial n-p Effect

doi:10.1002/adma.201802173

	Homojunction of Oxygen and Titanium Vacancies and its Interfacial n-p Effect
	Wu, Si-Ming 2; Liu, Xiao-Long 1,2; Lian, Xi-Liang ; Tian, Ge 2; Janiak, Christoph 3; Zhang, Yue-Xing 4; Lu, Yi 2; Yu, Hao-Zheng 2; Hu, Jie 2; Wei, Hao 2
刊名	ADVANCED MATERIALS
	2018-08-09
卷号	30 期号:32
关键词	Energy Storage Homojunction Of Oxygen And Titanium Vacancy N-p Effect Photocatalysis Titanium Dioxide
ISSN号	0935-9648
DOI	10.1002/adma.201802173
文献子类	Article
英文摘要	The homojunction of oxygen/metal vacancies and its interfacial n-p effect on the physiochemical properties are rarely reported. Interfacial n-p homojunctions of TiO2 are fabricated by directly decorating interfacial p-type titanium-defected TiO2 around n-type oxygen-defected TiO2 nanocrystals in amorphous-anatase homogeneous nanostructures. Experimental measurements and theoretical calculations on the cell lattice parameters show that the homojunction of oxygen and titanium vacancies changes the charge density of TiO2; a strong EPR signal caused by oxygen vacancies and an unreported strong titanium vacancies signal of 2D H-1 TQ-SQ MAS NMR are present. Amorphous-anatase TiO2 shows significant performance regarding the photogeneration current, photocatalysis, and energy storage, owing to interfacial n-type to p-type conductivity with high charge mobility and less structural confinement of amorphous clusters. A new homojunction of oxygen and titanium vacancies concept, characteristics, and mechanism are proposed at an atomic-/nanoscale to clarify the generation of oxygen vacancies and titanium vacancies as well as the interface electron transfer.
WOS关键词	PHOTOCATALYTIC ACTIVITY ; VISIBLE-LIGHT ; ANATASE TIO2 ; SEMICONDUCTING PROPERTIES ; HYDROGEN-PRODUCTION ; DEFECT CHEMISTRY ; LITHIUM STORAGE ; SINGLE-CRYSTAL ; PERFORMANCE ; SURFACE
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000440813300022
资助机构	National Key R&D Program of China(2017YFC1103800) ; National Key R&D Program of China(2017YFC1103800) ; National SFC(U1662134 ; National SFC(U1662134 ; ISTCP(2015DFE52870) ; ISTCP(2015DFE52870) ; PCSIRT(IRT_15R52) ; PCSIRT(IRT_15R52) ; HPNSF(2016CFA033 ; HPNSF(2016CFA033 ; SKLPPC(PPC2016007) ; SKLPPC(PPC2016007) ; U1663225 ; U1663225 ; 2017CFB487) ; 2017CFB487) ; 51472190 ; 51472190 ; 51611530672 ; 51611530672 ; 21711530705 ; 21711530705 ; 51503166 ; 51503166 ; 21706199) ; 21706199) ; National Key R&D Program of China(2017YFC1103800) ; National Key R&D Program of China(2017YFC1103800) ; National SFC(U1662134 ; National SFC(U1662134 ; ISTCP(2015DFE52870) ; ISTCP(2015DFE52870) ; PCSIRT(IRT_15R52) ; PCSIRT(IRT_15R52) ; HPNSF(2016CFA033 ; HPNSF(2016CFA033 ; SKLPPC(PPC2016007) ; SKLPPC(PPC2016007) ; U1663225 ; U1663225 ; 2017CFB487) ; 2017CFB487) ; 51472190 ; 51472190 ; 51611530672 ; 51611530672 ; 21711530705 ; 21711530705 ; 51503166 ; 51503166 ; 21706199) ; 21706199) ; National Key R&D Program of China(2017YFC1103800) ; National Key R&D Program of China(2017YFC1103800) ; National SFC(U1662134 ; National SFC(U1662134 ; ISTCP(2015DFE52870) ; ISTCP(2015DFE52870) ; PCSIRT(IRT_15R52) ; PCSIRT(IRT_15R52) ; HPNSF(2016CFA033 ; HPNSF(2016CFA033 ; SKLPPC(PPC2016007) ; SKLPPC(PPC2016007) ; U1663225 ; U1663225 ; 2017CFB487) ; 2017CFB487) ; 51472190 ; 51472190 ; 51611530672 ; 51611530672 ; 21711530705 ; 21711530705 ; 51503166 ; 51503166 ; 21706199) ; 21706199) ; National Key R&D Program of China(2017YFC1103800) ; National Key R&D Program of China(2017YFC1103800) ; National SFC(U1662134 ; National SFC(U1662134 ; ISTCP(2015DFE52870) ; ISTCP(2015DFE52870) ; PCSIRT(IRT_15R52) ; PCSIRT(IRT_15R52) ; HPNSF(2016CFA033 ; HPNSF(2016CFA033 ; SKLPPC(PPC2016007) ; SKLPPC(PPC2016007) ; U1663225 ; U1663225 ; 2017CFB487) ; 2017CFB487) ; 51472190 ; 51472190 ; 51611530672 ; 51611530672 ; 21711530705 ; 21711530705 ; 51503166 ; 51503166 ; 21706199) ; 21706199)
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/13010]
专题	中国科学院武汉物理与数学研究所
通讯作者	Yang, Xiao-Yu
作者单位	1.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Hubei, Peoples R China 2.Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, 122 Luoshi Rd, Wuhan 430070, Hubei, Peoples R China 3.Heinrich Heine Univ Dusseldorf, Inst Anorgan Chem & Strukturchem, D-40204 Dusseldorf, Germany 4.Hubei Univ, Coll Chem & Chem Engn, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Minist Educ,Key Lab Synth & Applicat Organ Funct, Wuhan 430062, Hubei, Peoples R China 5.Univ Antwerp, EMAT Electron Microscopy Mat Sci, Groenenborgerlaan 171, B-2020 Antwerp, Belgium 6.Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA 7.Univ Namur, Lab Inorgan Mat Chem CMI, 61 Rue Bruxelles, B-5000 Namur, Belgium
推荐引用方式 GB/T 7714	Wu, Si-Ming,Liu, Xiao-Long,Lian, Xi-Liang,et al. Homojunction of Oxygen and Titanium Vacancies and its Interfacial n-p Effect[J]. ADVANCED MATERIALS,2018,30(32).
APA	Wu, Si-Ming.,Liu, Xiao-Long.,Lian, Xi-Liang.,Tian, Ge.,Janiak, Christoph.,...&Su, Bao-Lian.(2018).Homojunction of Oxygen and Titanium Vacancies and its Interfacial n-p Effect.ADVANCED MATERIALS,30(32).
MLA	Wu, Si-Ming,et al."Homojunction of Oxygen and Titanium Vacancies and its Interfacial n-p Effect".ADVANCED MATERIALS 30.32(2018).