The time evolution of nonphotochemical holes in the absorption profile of tetracene doped into amorphous layers of 2,3-dimethylanthracene and 9,10-diphenylanthracene has been investigated and compared with literature results on tetracene in an alcohol glass. The kinetics can be described in terms of a dispersive first-order reaction of noninteracting reaction centers assuming that site relaxation is a tunnel process, the tunnel parameter λ being subject to a Gaussian distribution. Data for hole burning rates have been evaluated via model fits. Successful application of the concept to analysis of literature data for the recovery of photochemical holes suggests that a Gaussian distribution function for the rate-controlling parameter is superior to the conventionally constant distribution function with cutoff condition.
|Original language||English (US)|
|Number of pages||6|
|Journal||Journal of physical chemistry|
|State||Published - Dec 1 1985|
ASJC Scopus subject areas
- Physical and Theoretical Chemistry