Single-photon hot band absorption induced anti-Stokes luminescence of rhodamine 101 in mesostructured thin films

被引：25

作者：

Bartl, MH

Scott, BJ

Wirnsberger, G

Popitsch, A

Stucky, GD ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA

[2] Graz Univ Technol, Inst Chem Inorgan Chem, A-8010 Graz, Austria

来源：

CHEMPHYSCHEM | 2003年 / 4卷 / 04期

关键词：

anti-Stokes; energy up-conversion; luminescence; mesoporous materials; quantum efficiency; thin films;

D O I：

10.1002/cphc.200390069

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：

Dyeing for excitement? Laser excitation of rhodamine 101 doped 2D hexagonally ordered SBA-15 mesostructured silica thin films results in anti-Stokes luminescence with high quantum efficiencies; the emitted light is higher in energy than the absorbed one (see picture). It is shown that this effect is attributed to an energy up-conversion that involves a direct single-photon absorption process from high-energy vibration - rotation levels of the ground singlet state S0 to one of the vibration - rotation levels of the first excited singlet state S1.

引用

页码：392 / 395

页数：4

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