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

T. Ohsawa; K. 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, K. 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

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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, K.; Matsumoto, Y.; Koinuma, H.

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. https://doi.org/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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author = "T. Ohsawa and K. Nakajima and Y. Matsumoto and H. Koinuma",

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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, K.

AU - Matsumoto, Y.

AU - Koinuma, H.

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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 .

KW - Combinatorial

KW - Laser MBF

KW - Photocatalysis

KW - SrTiO

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