Highly sensitive measurements of transient absorption spectra of ultrathin organic films by the white light optical waveguide method

被引：0

作者：

Kawai, H ^{[1
]}

Nakano, K ^{[1
]}

Nagamura, T ^{[1
]}

机构：

[1] Shizuoka Univ, Elect Res Inst, Mol Photon Lab, Hamamatsu, Shizuoka 4328011, Japan

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2003年 / 406卷

关键词：

LB film; optical waveguide; tetraphenylporphyrin; white light;

D O I：

10.1080/15421400390263361

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

White light optical waveguide (WOWG) method was applied to measurement of transient absorption spectra of ultrathin polymer and Langmuir-Blodgett (LB) films. Tetraphenylporphyrin derivatives in poly(methyl methacrylate) films and in a mixed LB films with arachidic acid were prepared on the surface of OWG glasses. The WOWG method has two orders of magnitude higher sensitivity than the conventional absorption method. The transient absorption changes of intramolecular electron transfer reactions between porphyrin and viologen were detected highly sensitively in ultrathin films by the WOWG method.

引用

页码：357 / 362

页数：6

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