First-principles calculation of optical absorption spectra in conjugated polymers [electronic resource] : Role of electron-hole interaction.
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...
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| Online Access: |
Online Access |
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| Corporate Author: | |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Dept. of Energy. Division of Materials Sciences and Engineering ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
2000.
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| Summary: | 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) |
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| Item Description: | Published through the Information Bridge: DOE Scientific and Technical Information. 03/20/2000. "lbnl--45266" "B& R KC0202030" 4th International Conference on Optical Probes of Conjugated Polymers and Photonic Crystals, Salt Lake City, UT (US), 02/15/2000--02/19/2000. Louie, Steven G.; Rohlfing, Michael; Tiago, M.L. |
| Physical Description: | 18 pages : digital, PDF file. |