Optical probes of excited states in poly([ital p]-phenylenevinylene)

Journal Article · Mon Jan 03 04:00:00 EST 1994 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.72.156· OSTI ID:5354765

Leng, J M; Jeglinski, S; Wei, X; Benner, R E; Vardeny, Z V ^[1]; Guo, F; Mazumdar, S ^[2]

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1. Department of Physics and Electrical Engineering, University of Utah, Salt Lake City, Utah 84112 (United States)
2. Department of Physics, University of Arizona, Tucson, Arizona 85721 (United States)

We have studied electronic excited states in films of poly([ital p]-phenylenevinylene) using picosecond transient and cw photomodulation, photoluminescence, and their excitation spectra, as well as electroabsorption spectroscopy. We have determined all the important energy levels of singlet excitons with odd and even parity, the onset of the continuum band, the two-electron (biexciton) states, and the two relevant triplet states, and show that good agreement exists with models involving electron correlation.

• DOE Contract Number: FG03-93ER45490
• OSTI ID: 5354765
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 72:1; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360606* -- Other Materials-- Physical Properties-- (1992-)
ABSORPTION SPECTRA
ELECTRO-OPTICAL EFFECTS
ELECTRONIC STRUCTURE
ENERGY LEVELS
EXCITED STATES
EXCITONS
FILMS
LUMINESCENCE
PARITY
PARTICLE PROPERTIES
PHOTO-INDUCED TRANSIENT SPECTROSCOPY
PHOTOLUMINESCENCE
POLYMERS
QUASI PARTICLES
SPECTRA
SPECTROSCOPY