Effect of interchain separation on the photoinduced absorption spectra of polycarbazolyldiacetylenes
Comoretto, Davide and Moggio, Ivana and Dell'Erba, C. and Cuniberti, C. and Dellepiane, Giovanna and Rossi, Laura and Giardini, Mario Ettore and Borghesi, Alessandro (1996) Effect of interchain separation on the photoinduced absorption spectra of polycarbazolyldiacetylenes. Physical Review B, 54. pp. 16357-16360. ISSN 1098-0121 (https://doi.org/10.1103/PhysRevB.54.16357)
Preview |
PDF.
Filename: Published.pdf
Final Published Version Download (74kB)| Preview |
Abstract
The photoinduced absorption spectra of a novel polycarbazolyldiacetylene with long aliphatic chains on the carbazolyl side groups are measured and compared with those of the unsubstituted polyDCHD. The two polymers in the blue form exhibit very similar electronic absorption spectra and Raman frequencies. This fact indicates that the conjugation length of the polydiacetylene backbone is not too affected by the long substituents. In contrast, the near steady-state photoinduced absorption spectra show that different photogeneration mechanisms are involved in the two polymers. This result can be ascribed to the role played by the interchain distance in the dynamics of the relaxation processes in polydiacetylenes.
ORCID iDs
Comoretto, Davide, Moggio, Ivana, Dell'Erba, C., Cuniberti, C., Dellepiane, Giovanna, Rossi, Laura, Giardini, Mario Ettore ORCID: https://orcid.org/0000-0003-4849-9683 and Borghesi, Alessandro;-
-
Item type: Article ID code: 44999 Dates: DateEvent1996PublishedSubjects: Technology > Engineering (General). Civil engineering (General) > Bioengineering Department: Faculty of Engineering > Biomedical Engineering Depositing user: Pure Administrator Date deposited: 25 Sep 2013 14:17 Last modified: 05 Sep 2024 00:45 URI: https://strathprints.strath.ac.uk/id/eprint/44999