Peculiarities in the elementary step of electronic energy transfer in macromolecules
An electronic energy transfer is an important event among photophysical processes occurring in macromolecules. In macromolecules with aromatic groups in the side chain such transfer occurs via noncoherent excitons, which propagate along the polymer chain via random jumps between adjacent rings and can be described by the random-walk theory. An attempt is made in this work to estimate the limiting distance for singlet and triplet exciton jumps in carbazole- and benzcarbazole-containing macromolecules and also to explain some peculiarities in the elementary step of excitation energy transfer between aromatic groups in macromolecules. Solutions of poly(N-vinylcarbazole) (PVC), poly(N-vinyl-7H-benz/s/carbazole) (PV7BC), copolymers of N-vinylcarbazole and N-vinyl-7H-benz/s/carbazole with octylmethacrylate (VC-OMA and V7BC-OMA), and also a monomolecular analog of the monomer unit, N-ethyl-7H-benz/s/-carbazole (E7BC), were studied.
- OSTI ID:
- 6181885
- Journal Information:
- J. Appl. Spectrosc. (Engl. Transl.); (United States), Vol. 47:1; Other Information: Translated from Zh. Prikl. Spektrosk.; 47: No. 1, 96-101(Jul 1987)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
74 ATOMIC AND MOLECULAR PHYSICS
CARBAZOLES
ELECTRON TRANSFER
EXCITONS
WAVE PROPAGATION
POLYATOMIC MOLECULES
ABSORPTION SPECTRA
CALCULATION METHODS
COPOLYMERS
ELECTRONS
EXCITATION
FLUORESCENCE
LASER RADIATION
PHOSPHORESCENCE
PHOTOCONDUCTIVITY
PHOTOLUMINESCENCE
RANDOMNESS
STATISTICAL MECHANICS
TRAPPING
TRIPLETS
ULTRAVIOLET SPECTRA
AROMATICS
AZAARENES
AZOLES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY-LEVEL TRANSITIONS
FERMIONS
HETEROCYCLIC COMPOUNDS
LEPTONS
LUMINESCENCE
MECHANICS
MOLECULES
MULTIPLETS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
PHYSICAL PROPERTIES
POLYMERS
QUASI PARTICLES
RADIATIONS
SPECTRA
360603* - Materials- Properties
640302 - Atomic
Molecular & Chemical Physics- Atomic & Molecular Properties & Theory