Publication Type |
Journal Article |
School or College |
College of Science |
Department |
Physics |
Creator |
Vardeny, Zeev Valentine; Ehrenfreund, Eitan A. |
Other Author |
Gontia, I.; Frolov, S. V.; Liess, M.; Tada, K.; Kajii, H.; Hidayat, R.; Fujii, A.; Yoshino, K.; Teraguchi, M.; Masuda, T. |
Title |
Excitation dynamics in disubstituted polyacetylene |
Date |
1999-05 |
Description |
We studied the excitation dynamics in films of disubstituted polyacetylene, a degenerate ground-state conjugated polymer, using psec transient and steady-state spectroscopies. The polymer is found to support charged and neutral topological soliton excitations concurrent with a strong intrinsic photoluminescence band with quantum efficiency, η ≈50%. This leads to stimulated emission in thin films and lasing in cylindrical µ cavities. The seeming contradiction of a degenerate ground-state polymer with high η is explained by the lowest excited-state ordering. |
Type |
Text |
Publisher |
American Physical Society |
Journal Title |
Physical Review Letters |
Volume |
82 |
Issue |
20 |
First Page |
4058 |
Last Page |
4061 |
DOI |
10.1103/PhysRevLett.82.4058 |
citatation_issn |
0031-9007 |
Subject |
Excitation dynamics; Disubstituted polyacetylene; Laser action |
Subject LCSH |
Polyacetylenes -- Optical properties; Solitons; Lasers |
Language |
eng |
Bibliographic Citation |
Gontia, I., Frolov, S. V., Liess, M., Ehrenfreund, E., Vardeny, Z. V., Tada, K., Kajii, H., Fujii, A., Yoshino, K., Teraguchi, M., & Masuda, T. (1999). Excitation dynamics in disubstituted polyacetylene. Physical Review Letters, 82(20), 4058-61. |
Rights Management |
(c) American Physical Society http://dx.doi.org/10.1103/PhysRevLett.82.4058 |
Format Medium |
application/pdf |
Format Extent |
207,946 bytes |
Identifier |
ir-main,9909 |
ARK |
ark:/87278/s6h13k2k |
Setname |
ir_uspace |
ID |
702229 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6h13k2k |