The decay of trapped electrons'by turinelling to scavenge; molecules is investigated theoretictiy. An e&t expression has been derived which gives an exporqtiat decrease of.the.trapped ckktron yiekwith the scavenger concintration at any given time. ,.. ' .' .. ## Recently several workers [l-5] hav
Photoionization of molecules in low temperature glasses
β Scribed by J.T. Richards; J.K. Thomas
- Publisher
- Elsevier Science
- Year
- 1971
- Tongue
- English
- Weight
- 407 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
Trapped electrons have been produced in ethanol and 3 MH glass-s at 77*K by the photoionization of TMPD, using pulses of 3471A light from 3 ruby laser. Time dependent absorption spectra are observed which are compared to similar data obtained by pulse radio!ysis. It is concluded that similar electron trapping takes place in both cases and that the electrons are trapped in fortuitous arrangements of the solvent molecules in the matrix, and that the rearrangement of the solvent in the traps gives rise to the spectral changes.
π SIMILAR VOLUMES
Aggregation of monomeric syn-bimanes (1,5-diazabicyclo [ 3.3.01 octa-3,6-dien-2,8diones) via dimers or n-mers into crystallites (organized clusters) can be induced by appropriate solvents at 77 K and monitored by emission spectra and radiative rates.
One-photon non-photochemical hole burning (NPHB) is shown to be a viable method for producing narrow-line twophoton spectra of molecules in solution at low temperature. The TPE spectrum of phenanthrene at 2 K in a glassy medium is presented and is shown to manifest one-photon NPHB effects.