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

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