Photoinduced quantum interference antiresonances in pi-conjugated polymers |
| |
Authors: | Osterbacka R Jiang X M An C P Horovitz B Vardeny Z V |
| |
Affiliation: | Department of Physics, Abo Akademi University, Porthansgatan 3, FIN-20500 Turku, Finland. |
| |
Abstract: | We observed photoinduced quantum interference antiresonances between several discrete infrared-active vibrations and the lower-polaron continuous absorption band in a series of pi-conjugated polymer films having superior planar orders, where the polaron transition energy is relatively small. The photoinduced Fano-type antiresonances are well explained by extending the amplitude mode model beyond the adiabatic limit. The agreement between the data and the model confirms the presence of a continuous electronic band above the polaron state. We show that high frequency modes are strongly coupled to electrons, with implications for superconductivity. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|