Cooperative exciton spectra in molecular crystals
β Scribed by C. Mavroyannis
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- English
- Weight
- 469 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0009-2614
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π SIMILAR VOLUMES
Exciton traps in molecular crystals at low temperature are discussed for three types: chemical traps formed by fareign molecules, physical traps formed by structural disturbance of the host or pure crystal and self-traps. Self-traps are redefΓ―ned in terms of intra-and Γ―ntermolecular processes which
In distinction to previous work aJ.J host and impurity transitions from the ground state arc included and the number and nature of the impurities is arbitrary. The fist feature is im~ort~t for proper consjderatio~ of crystal field polarization effects. It is shown that the effective long range inter