Optical properties of disubstituted polyacetylene thin films

We have studied the optical properties of thin films of novel disubstituted acetylene polymers such as poly(1-phenyl-2- p- n-butylphenylacetylene) (PDPA- nBu) and poly(1- n-hexyl-2-phenylacetylene) (PHxPA), that show high photoluminescence (PL) quantum efficiency in comparison with unsubstituted or...

Full description

Saved in:
Bibliographic Details
Published in:Synthetic metals 2001-01, Vol.116 (1), p.95-99
Main Authors: Fujii, A., Hidayat, R., Sonoda, T., Fujisawa, T., Ozaki, M., Vardeny, Z.V., Teraguchi, M., Masuda, T., Yoshino, K.
Format: Article
Language:English
Subjects:
Applied sciences
Electrical, magnetic and optical properties
Electroluminescence
Exact sciences and technology
Organic polymers
Photoluminescence
Physicochemistry of polymers
Polyacetylene derivatives
Properties and characterization
Raman spectroscopy
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We have studied the optical properties of thin films of novel disubstituted acetylene polymers such as poly(1-phenyl-2- p- n-butylphenylacetylene) (PDPA- nBu) and poly(1- n-hexyl-2-phenylacetylene) (PHxPA), that show high photoluminescence (PL) quantum efficiency in comparison with unsubstituted or monosubstituted polyacetylene. The polarization dependence of PL and Raman scattering of PDPA- nBu and PHxPA have been studied in order to clarify the emission mechanism. Assuming the model of short polyene conjugation length in the acetylene polymers, we estimate the average conjugation length from the respective stretching vibration frequency of the carboncarbon double bond. The emission mechanism of PHxPA and PDPA- nBu is discussed in relation with the electronic excited states of these polymers
ISSN:0379-6779
1879-3290
DOI:10.1016/S0379-6779(00)00523-3