Structural characterization of TiO2 films grown on LaAlO3 and SrTiO3 substrates using reactive molecular beam epitaxy

Weng, Xiaojun; Fisher, P.; Skowroński, Marek; Salvador, Paul A.; Maksimov, O.

doi:10.1016/j.jcrysgro.2007.10.084

Cited by 37 publications

(31 citation statements)

References 27 publications

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“…1(f) shows a HRTEM image of the anatase TiO 2 -LaAlO 3 interface with the corresponding electron diffraction patterns as insets. The following orientation relationship is seen, that is (0 0 1) (0 1 0) A //(0 0 1)(0 1 0) L , consistent with the previous work [33], where the subscripts A and L represent the anatase TiO 2 and the LaAlO 3 phases respectively. Besides, in the image of Fig.…”

Section: Characteristics Of Tio 2 Filmssupporting

confidence: 90%

Pulse laser deposition of epitaxial TiO 2 thin films for high-performance ultraviolet photodetectors

Zhang

Wong

Zhang

et al. 2015

Applied Surface Science

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Section: Characteristics Of Tio 2 Filmssupporting

confidence: 90%

Pulse laser deposition of epitaxial TiO 2 thin films for high-performance ultraviolet photodetectors

Zhang

Wong

Zhang

et al. 2015

Applied Surface Science

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“…This brings a natural question: what would be the effect on the band alignment of an interfacial O vacancy? [75] Here we only consider a neutral vacancy. There are four types of interfacial O ions as shown in Fig.…”

Section: Oxygen Vacancy and Fluorine Impurity At The Tio 2 /Srtio 3 Imentioning

confidence: 99%

Band alignment and electronic structure of the anatase TiO2/SrTiO3(001) heterostructure integrated on Si(001)

et al. 2012

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Using density functional theory (DFT), scanning transmission electron microscopy (STEM), and electron energy loss spectroscopy (EELS) we study the interface structure and electronic properties of the anataseTiO 2 /SrTiO 3 (001) heterostructure epitaxially grown on Si (001) by molecular beam epitaxy (MBE). We show that charge transfer at the TiO 2 /SrTiO 3 interface is induced by the chemical bond formation between Ti and O. Subsequent O lattice polarization is found to be the leading screening mechanism at the interface. By comparing the theoretical local electronic structure to the O K edge EELS spectra taken at the interface with atomic resolution, we are able to trace how the local band structure evolves in response to the change in symmetry and bonding across the interface. We also discuss the effect of interfacial point defects (O vacancy and F impurity) on the band alignment.

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“…1. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] Of the preceding, the methods for chemical vapor deposition (CVD) are the best known and most widely used thin film fabrication techniques [16][17][18][19] largely because, in addition to the abovementioned advantages, they are adapted easily to the coating of large surfaces. [20][21][22][23] CVD methods also have the advantage that they can be used both with and without a vacuum system, [24][25][26][27] which is not the case with physical vapor deposition (PVD) methods, which require vacuum conditions.…”

Section: Introductionmentioning

confidence: 99%

Conceptual model for spray pyrolysis mechanism: fabrication and annealing of titania thin films

Nakaruk

Sorrell

2010

J Coat Technol Res

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The present work presents a comprehensive model of both processes and outcomes of the spray pyrolysis mechanism, which is based on wide-ranging experience gained from experimentation involving a range of parameters. The deposition temperature and initial droplet size are the main parameters controlling film properties, including mineralogy, surface morphology, thickness, and bonding; the effect of annealing on these properties also is considered. The model is supported experimentally through the processing of films aerosol and ultrasonically spray pyrolyzed at 350°C, followed by annealing for 12 h at 500°C in air. Assessment of the mineralogy, chemical bonding, and crystallinity/residual stress of the films involved glancing-angle X-ray diffraction and laser Raman microspectroscopy, Fourier transform infrared spectroscopy, and crossed polarizers with an optical microscope, respectively.

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Structural characterization of TiO2 films grown on LaAlO3 and SrTiO3 substrates using reactive molecular beam epitaxy

Cited by 37 publications

References 27 publications

Pulse laser deposition of epitaxial TiO 2 thin films for high-performance ultraviolet photodetectors

Pulse laser deposition of epitaxial TiO 2 thin films for high-performance ultraviolet photodetectors

Band alignment and electronic structure of the anatase TiO2/SrTiO3(001) heterostructure integrated on Si(001)

Conceptual model for spray pyrolysis mechanism: fabrication and annealing of titania thin films

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