Picosecond excited states in poly(aryleneethynylene)s

被引：14

作者：

Bourdin, E ^{[1
]}

Davey, A ^{[1
]}

Blau, W ^{[1
]}

Delysse, S ^{[1
]}

Nunzi, JM ^{[1
]}

机构：

[1] CEA,DIRECT TECHNOL AVANCEES,LAB PHYS ELECT MAT,LETI,DEPT ELECT & INSTRUMENTAT NUCL,F-91191 GIF SUR YVETTE,FRANCE

来源：

CHEMICAL PHYSICS LETTERS | 1997年 / 275卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(97)00722-7

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：

Temporal and spectral excited-state absorption characterisation of polyaryleneethynylenes in solution has been performed using Kerr ellipsometry. The position of the 2A(g) level has been determined for three different polymers of this family. Depending on the aromatic substituent, the 2A(g) state is located approximately 1.4 to 1.7 eV above the optical bandgap, with a cross-section of 7 of 20 x 10(-17) cm(2) and the radiative decay times are found to be around 450 ps. (C) 1997 Published by Elsevier Science B.V.

引用

页码：103 / 107

页数：5

共 17 条

[1]

BARRET B, 1995, THESIS U ORSAY PARIS, pCH2

[2]

BOURDIN E, UNPUB NONLINEAR OPT

[3]

BOURDIN E, 1996, THESIS TRINIGY COLL, pCH4

[4] 3 PHOTON-INDUCED FLUORESCENCE FROM A CONJUGATED ORGANIC POLYMER FOR INFRARED FREQUENCY UP-CONVERSION [J].