The dynamics of triplet exciton trapping in 1,2,4,5- tetrachlorobenzene |
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| Authors: | W. Güttler J.U. von Schütz H.C. Wolf |
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| Affiliation: | Physikalisches Institut, Teilinstitut 3, Universität Stuttgart, D 7000 Stuttgart, West Germany |
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| Abstract: | The phosphorescence intensifies and decay times of the triplet exciton and X2-trap emission in neat and doped 1,2,4,5-tetrachlorobenzene crystals were measured as a function of temperature. The comparison of the results found on neat and doped crystals allows the statement, that exciton trapping is not limited by the motion of the excitons towards the traps but by the trapping step on the trap molecule solely. For the individual trapping step a rate of about 3 × 106 S?1 was determined. |
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