Optical Excitations in Conjugated Polymers
Journal Article
·
· Physical Review Letters
- Department of Physics, University of California, Berkeley, California 94720-7300 (United States)
We investigate optical absorption spectra and excitons in conjugated polymers from first principles. This is done by calculating the one-particle and the two-particle Green{close_quote}s function, including relevant many-body effects, and evaluating quasiparticle and optical excitations. Trans-polyacetylene and poly-phenylene-vinylene are studied as prototype long chain polymers. The electron-hole interaction gives rise to large exciton binding energies ({approximately}1 thinspthinspeV) and dramatically alters the optical spectra. The calculated exciton wave functions are very extended in real space. {copyright} {ital 1999} {ital The American Physical Society}
- Research Organization:
- Lawrence Berkeley National Laboratory
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 324931
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 9 Vol. 82; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
Similar Records
Optical excitations in conjugated polymers
First-principles calculation of optical absorption spectra in conjugated polymers: Role of electron-hole interaction
Ab initio study of optical absorption spectra of semiconductors and conjugated polymers
Journal Article
·
Fri Oct 30 23:00:00 EST 1998
· Physical Review Letters
·
OSTI ID:878513
First-principles calculation of optical absorption spectra in conjugated polymers: Role of electron-hole interaction
Conference
·
Sun Mar 19 23:00:00 EST 2000
·
OSTI ID:805106
Ab initio study of optical absorption spectra of semiconductors and conjugated polymers
Conference
·
Sun Apr 30 00:00:00 EDT 2000
·
OSTI ID:806096