| 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 |
© 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 |
