| Publication Type |
Journal Article |
| School or College |
College of Science |
| Department |
Physics |
| Creator |
Vardeny, Zeev Valentine; Ehrenfreund, Eitan A. |
| Other Author |
Brafman, O.; Nowak, M.; Schafter, H.; Heeger, A. J.; Wudl, F. |
| Title |
Photogeneration of confined soliton pairs (bipolarons) in polythiophene |
| Date |
1986-02 |
| Description |
From photoinduced absorption and light-induced electron-spin resonance, we demonstrate that the dominant photocarriers generated in polythiophene with excitation above the energy gap (Eg) are charged bipolarons (spin 0). The observation of bipolarons (B2± ) rather than polarons (Pf ) as the dominant photoexcitations demonstrates that the Coulomb contribution to the bipolaron energy (UB ) is sufficiently small that P± + P± B± 2 . From the analysis of the spectra, we find UB/Eg = 0.12. |
| Type |
Text |
| Publisher |
American Physical Society |
| Journal Title |
Physical Review Letters |
| Volume |
56 |
| Issue |
6 |
| First Page |
671 |
| Last Page |
674 |
| DOI |
10.1103/PhysRevLett.56.671 |
| citatation_issn |
0031-9007 |
| Subject |
Photoinduced absorption; Photocarriers; Bipolarons; Photoexcitation |
| Subject LCSH |
Solitons; Polythiophenes -- Optical properties |
| Language |
eng |
| Bibliographic Citation |
Vardeny, Z. V., Ehrenfreund, E., Brafman, O., Nowak, M., Schafter, H., Heeger, A. J., & Wudl, F. (1986). Photogeneration of confined soliton pairs (bipolarons) in polythiophene. Physical Review Letters, 56(6), 671-4. |
| Rights Management |
(c) American Physical Society http://dx.doi.org/10.1103/PhysRevLett.56.671 |
| Format Medium |
application/pdf |
| Format Extent |
375,670 bytes |
| Identifier |
ir-main,9607 |
| ARK |
ark:/87278/s6jq1jkb |
| Setname |
ir_uspace |
| ID |
706499 |
| Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6jq1jkb |
