TY - JOUR
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
Y1 - 2006/1/21
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
UR - http://www.scopus.com/inward/record.url?scp=31144438602&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=31144438602&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2005.05.086
DO - 10.1016/j.apsusc.2005.05.086
M3 - Conference article
AN - SCOPUS:31144438602
SN - 0169-4332
VL - 252
SP - 2603
EP - 2607
JO - Applied Surface Science
JF - Applied Surface Science
IS - 7
T2 - Proceedings of the Third Japan-US Workshop on Combinatorial Material Science and Technology CMST-e SI
Y2 - 7 December 2004 through 10 December 2004
ER -