Abstract
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 language | English |
|---|---|
| Pages (from-to) | 605-609 |
| Number of pages | 5 |
| Journal | Journal of Chemical Physics |
| Volume | 99 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1993 |
| Externally published | Yes |