On energy transfer processes at cluster-oxide interfaces: silver on titania

被引：38

作者：

Nilius, N ^{[1
]}

Ernst, N ^{[1
]}

Freund, H ^{[1
]}

机构：

[1] Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, Germany

来源：

CHEMICAL PHYSICS LETTERS | 2001年 / 349卷 / 5-6期

关键词：

D O I：

10.1016/S0009-2614(01)01232-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Using a scanning tunneling microscope, elect ron-stimulated photon emission spectra have been measured for individual Ag clusters on differently pretreated TiO2(1 1 0) substrates. For clusters on weakly reduced TiO2, we observe radiating decays of Mie-plasmons shifting to higher energies as cluster sizes decrease. On strongly reduced TiO2, plasmons are dissipated via energy transfer to electron-hole pair excitations in the oxide and emission spectra reveal radiating decays of TiO2 excitons. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：351 / 357

页数：7

共 35 条

[1] TIME-RESOLVED PHOTOLUMINESCENCE FROM EXCITONS IN TIO2
AMTOUT, A
LEONELLI, R
[J]. SOLID STATE COMMUNICATIONS, 1992, 84 (03) : 349 - 352
[2] INELASTIC TUNNELING EXCITATION OF TIP-INDUCED PLASMON MODES ON NOBLE-METAL SURFACES
BERNDT, R
GIMZEWSKI, JK
JOHANSSON, P
[J]. PHYSICAL REVIEW LETTERS, 1991, 67 (27) : 3796 - 3799
[3] A modulated molecular beam study of the extent of H2O dissociation on TiO2(110)
Brinkley, D
Dietrich, M
Engel, T
Farrall, P
Gantner, G
Schafer, A
Szuchmacher, A
[J]. SURFACE SCIENCE, 1998, 395 (2-3) : 292 - 306
[4] PT-195 NMR-STUDY OF PT/TIO2 AND PT/SIO2 CATALYSTS - STRONG METAL SUPPORT INTERACTION
BUCHER, JP
VANDERKLINK, JJ
GRAETZEL, M
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1990, 94 (04) : 1209 - 1211
[5] Ultrathin metal films and particles on oxide surfaces: Structural, electronic and chemisorptive properties
Campbell, CT
[J]. SURFACE SCIENCE REPORTS, 1997, 27 (1-3) : 1 - 111
[6] Morphology of Cu overlayers on TiO2(110)
Chang, Z
Haq, S
Thornton, G
[J]. SURFACE SCIENCE, 2000, 467 (1-3) : L841 - L844
[7] Charle KP, 1998, CRYST RES TECHNOL, V33, P1085, DOI 10.1002/(SICI)1521-4079(199810)33:7/8<1085::AID-CRAT1085>3.0.CO
[8] 2-A
[9] Edwards D.F., 1985, Handbook of optical constants of solids
[10] ERTL G, 1997, HDB HETEROGENOUS CAT, V4, P2111

← 1 2 3 4 →