Structural disorder and spin-lattice relaxation

G. Kaiser, H. Pierron, J. Friedrich

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


We measured the spin-lattice relaxation of the photoexcited triplet state of quinoxaline in variety of organic glasses and polymers as a function of temperature. The experiment covered the temperature range from a few K close to the glass transition. The remarkable thing is that the temperature dependence of the spin-lattice relaxation seems to be uniform for the various glassy and polymeric materials within the whole temperature range and seems to follow a quadratic temperature dependence. The only exception in polyethylene. There, the temperature dependence is much steeper but levels off above 40 K.

Original languageEnglish
Pages (from-to)605-609
Number of pages5
JournalJournal of Chemical Physics
Issue number1
StatePublished - 1993
Externally publishedYes


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