First-principles calculation of optical absorption spectra in conjugated polymers: Role of electron-hole interaction
Conference
·
OSTI ID:805106
Experimental and theoretical studies have shown that excitonic effects play an important role in the optical properties of conjugated polymers. The optical absorption spectrum of trans-polyacetylene, for example, can be understood as completely dominated by the formation of exciton bound states. We review a recently developed first-principles method for computing the excitonic effects and optical spectrum, with no adjustable parameters. This theory is used to study the absorption spectrum of two conjugated polymers: trans-polyacetylene and poly-phenylene-vinylene(PPV).
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Director, Office of Science. Office of Basic Energy Studies. Materials Science and Engineering Division; National Science Foundation (US)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 805106
- Report Number(s):
- LBNL-45266; R&D Project: 506701; B& R KC0202030; TRN: US0301643
- Resource Relation:
- Conference: 4th International Conference on Optical Probes of Conjugated Polymers and Photonic Crystals, Salt Lake City, UT (US), 02/15/2000--02/19/2000; Other Information: PBD: 20 Mar 2000
- Country of Publication:
- United States
- Language:
- English
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