| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5376405 | Chemical Physics | 2007 | 11 Pages |
Abstract
The temperature dependence of exciton absorption and Raman frequencies of polydiacetylene (PDA) isolated chains is studied for 3BCMU and 4BCMU chains dispersed in their respective monomer crystal matrix. While isolated 3BCMU chains are practically unstrained, and behave as typical high quality bulk PDA, isolated 4BCMU chains are under a compression that increases as T decreases and show a very different behaviour. A simple model of chain deformation and its effect on the exciton energy is proposed, which qualitatively accounts for all the results.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Sylvie Spagnoli, Jeanne Berrehar, Jean-Louis Fave, Michel Schott,