The mechanisms of the photostimulated structural changes in molecular layers of cyanine compounds

被引：0

作者：

Starovoytov, Anton ^{[1
]}

Kaliteevskaya, Elena ^{[1
]}

Krutyakova, Valentina ^{[1
]}

Razumova, Tatiana ^{[1
]}

机构：

[1] Natl Res Univ Informat Technol Mech & Opt, St Petersburg 197101, Russia

来源：

FUNDAMENTALS OF LASER-ASSISTED MICRO- AND NANOTECHNOLOGIES 2013 | 2013年 / 9065卷

关键词：

cyanine; molecule; dimer; isomerization; laser; organic thin film; LYMPHOCYTES; FILM; CELL;

D O I：

10.1117/12.2053525

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We investigate the structural changes induced in molecular layers of dicarbocyanine by single pulse laser radiation. The successive resonance excitation of all-trans isomer causes changes of the spatial orientation and relative concentration of the different molecular forms. The dependences of relative concentration on the total energy density of the photostimulation irregularly change with single pulse energy, initial concentration of the molecules the layer, and all-trans-isomer concentration (the latter is a measure of the absorbed energy for each pulse). The model of the photostimulated structural changes in cyanine layers is suggested.

引用

页数：5

共 10 条

[1]

Gao FF, 2008, CHEM COMMUN, P2635, DOI 10.1039/b802909a

[2]

Gribov L. A., 2002, HERALD RUSSIAN ACAD, V72, P611

[3] Formation mechanisms of equilibrium component composition of molecular layers of polymethine dyes [J].