Combinatorial discovery of anomalous substrate effect on the photochemical properties of transition metal-doped epitaxial SrTiO                         3                          heterostructures

T. Ohsawa; Ken Nakajima; Y. Matsumoto; H. Koinuma

doi:10.1016/j.apsusc.2005.05.086

Combinatorial discovery of anomalous substrate effect on the photochemical properties of transition metal-doped epitaxial SrTiO ₃ heterostructures

T. Ohsawa, Ken Nakajima, Y. Matsumoto, H. Koinuma

Research output: Contribution to journal › Conference article › peer-review

15 Citations (Scopus)

Abstract

Epitaxial Sr(V _x Cr _y Ti _1-x-y )O ₃ (0≤x+y≤0.05) ternary composition spreads were grown on two different single crystal substrates, LaAlO ₃ and Nb-doped SrTiO ₃ , by use of combinatorial laser molecular beam epitaxy with a specially patterned slide masking plate. The photocatalytic activity on the composition spreads was evaluated by the photo-reduction of Ag ⁺ in an AgNO ₃ aqueous solution to deposit Ag metal on the spreads. The V-doping effect was found to depend greatly on the substrate: the photodeposition of Ag was much enhanced in the composition region of SrV _0.05 Ti _0.95 O ₃ only on the Nb-doped SrTiO ₃ , but not on the LaAlO ₃ and non-doped SrTiO ₃ .

Original language	English
Pages (from-to)	2603-2607
Number of pages	5
Journal	Applied Surface Science
Volume	252
Issue number	7
DOIs	https://doi.org/10.1016/j.apsusc.2005.05.086
Publication status	Published - 2006 Jan 21
Externally published	Yes
Event	Proceedings of the Third Japan-US Workshop on Combinatorial Material Science and Technology CMST-e SI - Duration: 2004 Dec 7 → 2004 Dec 10

Keywords

Combinatorial
Laser MBF
Photocatalysis
SrTiO

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Physics and Astronomy(all)
Surfaces and Interfaces
Surfaces, Coatings and Films

Access to Document

10.1016/j.apsusc.2005.05.086

Cite this

Ohsawa, T., Nakajima, K., Matsumoto, Y., & Koinuma, H. (2006). Combinatorial discovery of anomalous substrate effect on the photochemical properties of transition metal-doped epitaxial SrTiO ₃ heterostructures Applied Surface Science, 252(7), 2603-2607. https://doi.org/10.1016/j.apsusc.2005.05.086

Combinatorial discovery of anomalous substrate effect on the photochemical properties of transition metal-doped epitaxial SrTiO ₃ heterostructures . / Ohsawa, T.; Nakajima, Ken; Matsumoto, Y. et al.

In: Applied Surface Science, Vol. 252, No. 7, 21.01.2006, p. 2603-2607.

Research output: Contribution to journal › Conference article › peer-review

Ohsawa, T, Nakajima, K, Matsumoto, Y & Koinuma, H 2006, ' Combinatorial discovery of anomalous substrate effect on the photochemical properties of transition metal-doped epitaxial SrTiO ₃ heterostructures ', Applied Surface Science, vol. 252, no. 7, pp. 2603-2607. https://doi.org/10.1016/j.apsusc.2005.05.086

Ohsawa T, Nakajima K, Matsumoto Y, Koinuma H. Combinatorial discovery of anomalous substrate effect on the photochemical properties of transition metal-doped epitaxial SrTiO ₃ heterostructures Applied Surface Science. 2006 Jan 21;252(7):2603-2607. doi: 10.1016/j.apsusc.2005.05.086

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title = " Combinatorial discovery of anomalous substrate effect on the photochemical properties of transition metal-doped epitaxial SrTiO 3 heterostructures ",

abstract = " Epitaxial Sr(V x Cr y Ti 1-x-y )O 3 (0≤x+y≤0.05) ternary composition spreads were grown on two different single crystal substrates, LaAlO 3 and Nb-doped SrTiO 3 , by use of combinatorial laser molecular beam epitaxy with a specially patterned slide masking plate. The photocatalytic activity on the composition spreads was evaluated by the photo-reduction of Ag + in an AgNO 3 aqueous solution to deposit Ag metal on the spreads. The V-doping effect was found to depend greatly on the substrate: the photodeposition of Ag was much enhanced in the composition region of SrV 0.05 Ti 0.95 O 3 only on the Nb-doped SrTiO 3 , but not on the LaAlO 3 and non-doped SrTiO 3 .",

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T1 - Combinatorial discovery of anomalous substrate effect on the photochemical properties of transition metal-doped epitaxial SrTiO 3 heterostructures

AU - Ohsawa, T.

AU - Nakajima, Ken

AU - Matsumoto, Y.

AU - Koinuma, H.

PY - 2006/1/21

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N2 - Epitaxial Sr(V x Cr y Ti 1-x-y )O 3 (0≤x+y≤0.05) ternary composition spreads were grown on two different single crystal substrates, LaAlO 3 and Nb-doped SrTiO 3 , by use of combinatorial laser molecular beam epitaxy with a specially patterned slide masking plate. The photocatalytic activity on the composition spreads was evaluated by the photo-reduction of Ag + in an AgNO 3 aqueous solution to deposit Ag metal on the spreads. The V-doping effect was found to depend greatly on the substrate: the photodeposition of Ag was much enhanced in the composition region of SrV 0.05 Ti 0.95 O 3 only on the Nb-doped SrTiO 3 , but not on the LaAlO 3 and non-doped SrTiO 3 .

AB - Epitaxial Sr(V x Cr y Ti 1-x-y )O 3 (0≤x+y≤0.05) ternary composition spreads were grown on two different single crystal substrates, LaAlO 3 and Nb-doped SrTiO 3 , by use of combinatorial laser molecular beam epitaxy with a specially patterned slide masking plate. The photocatalytic activity on the composition spreads was evaluated by the photo-reduction of Ag + in an AgNO 3 aqueous solution to deposit Ag metal on the spreads. The V-doping effect was found to depend greatly on the substrate: the photodeposition of Ag was much enhanced in the composition region of SrV 0.05 Ti 0.95 O 3 only on the Nb-doped SrTiO 3 , but not on the LaAlO 3 and non-doped SrTiO 3 .

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KW - Laser MBF

KW - Photocatalysis

KW - SrTiO

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