Abstract
Geometrical relaxation of the main chain configuration in polydiacetylene (PDA) has been investigated with time-resolved resonance Raman gain spectroscopy with 300-fs resolution. The Raman signal due to a self-trapped exciton in PDA has been observed at 1200 cm-1. The observed Raman signals offer direct evidence of the structure of a self-trapped exciton being a butatrienelike structure after geometrical relaxation from the acetylenelike structure in the free exciton state.
| Original language | English |
|---|---|
| Pages (from-to) | 13259-13262 |
| Number of pages | 4 |
| Journal | Physical Review B |
| Volume | 49 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - 1994 |
| Externally published | Yes |
ASJC Scopus subject areas
- Condensed Matter Physics