ANALYSIS OF THE INTENSITY AND PHASE DELAY OF PHOTOINDUCED INFRARED-ABSORPTION FROM POLY(2,3-THIENYLENEVINYLENE)

Authors
CHA YH FURUKAWA Y TASUMI M NOGUCHI T OHNISHI T
Citation
Yh. Cha et al., ANALYSIS OF THE INTENSITY AND PHASE DELAY OF PHOTOINDUCED INFRARED-ABSORPTION FROM POLY(2,3-THIENYLENEVINYLENE), Chemical physics letters, 280(5-6), 1997, pp. 464-468
Citations number
21
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics letters → ACNP
ISSN journal
00092614
Volume
280
Issue
5-6
Year of publication
1997
Pages
464 - 468
Database
ISI
SICI code
0009-2614(1997)280:5-6<464:AOTIAP>2.0.ZU;2-2
Abstract
Photoinduced infrared absorption spectra have been measured from poly( 2,5-thienylenevinylene) by the phase-modulation method with modulation frequencies between 0.8 and 15 kHz. The modulation-frequency dependen cies of the intensity and phase delay of the photoinduced infrared abs orption have been numerically simulated by the use of a model based on second-order kinetics involving a neutralization recombination proces s between the positive and negative polarons, This numerical method is useful in analysing the nonlinear response associated with a bimolecu lar process. (C) 1997 Elsevier Science B.V.