Energy transfer in doubly doped solid neon

✍ Scribed by E. Pantos; S.S. Hasnain; I.T. Steinberger

• Publisher: Elsevier Science
• Year: 1977
• Tongue: English
• Weight: 351 KB
• Volume: 46
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(77)85291-3

✦ Synopsis

Sohd neon doped by xenon and bcnzcnc exhibits xenon &sorption and benzene lummc~ccncc for cvcltation in the range 8.2 CV C hv < 11.5 eV. A Forstcr-type radiationiess energy transfer is suggested. An absorption band at 10.4 cV is interpreted as cxatation of the 5p55d xenon impurity state.

Energy transfer processes in pure rare-gas crystals have been observed in the course of photoemission studies [l-3]. In these experiments exciton absorption in the rare-gas solid is followed by electron emission from the metal substrate. In rare-gas crystals doped by another rare gas, energy transfer from the host to the impurity was deduced from lummcscencc spectra [ 1,4] and from photoemission excitation spectra [1,3,5]. Recently a detailed study was made [6-81 at Daresbury Laboratory of benzene-doped rare-gas solids, monitoring simu!taneously transmission, reflection, photoemission and luminescence excitation spectra.

In all systems consisting of a rare-gas solid doped by a single impurity, excitation energy may be transferred, in principle, from the host to the impurity by various processes, involving, e.g. exciton migration, Fiirster-