Efficient light harvesting and energy transfer in organic anorganic hybrid multichromophoric materials

被引：39

作者：

Chen, CH

Liu, KY

Sudhakar, S

Lim, TS

Fann, W

Hsu, CP

Luh, TY ^{[1
]}

机构：

[1] Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan

[2] Natl Taiwan Univ, Inst Polymer Sci & Engn, Taipei 106, Taiwan

[3] Acad Sinica, Inst Chem, Taipei 115, Taiwan

[4] Acad Sinica, Inst Atom & Mol Sci, Taipei 106, Taiwan

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2005年 / 109卷 / 38期

关键词：

D O I：

10.1021/jp051909c

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：

Thin films of silica hybrid materials consisting of two to three covalently bound organic chromophores at different ratios were conveniently synthesized and fabricated. The photophysical properties of these materials have been studied. The fluorescence spectra reveal complete fluorescence resonance energy transfer (FRET) from donor to acceptor, and the light-harvesting ability of these hybrid materials increases with increasing the molar fraction of donor chromophore. In a three-chromophore system, the energy is transferred from 300 to 530 nm successfully. Time-resolved fluorescence experiments are employed to elucidate the average rates and efficiencies (84-97%) of energy transfer in these organic/inorganic hybrid systems. The hybrid materials have been shown to provide antenna effect to facilitate energy transfer and light harvesting.

引用

页码：17887 / 17891

页数：5