Low Temperature Photochemistry In Amorphous Films

Charles A Wight; Thomas W Tang; Edward S. Mansueto

doi:10.1117/12.951634

15 August 1989 Low Temperature Photochemistry In Amorphous Films

Charles A Wight, Thomas W Tang, Edward S. Mansueto

Proceedings Volume 1056, Photochemistry in Thin Films; (1989) https://doi.org/10.1117/12.951634
Event: OE/LASE '89, 1989, Los Angeles, CA, United States

Abstract

Photochemical reactions of free radicals and ions in cryogenic films have been investigated using infrared absorption spectroscopy. The amorphous films are formed by vapor deposition of one or more reagents onto an optical window at 10-77 K. Reactive intermediates are generated by pulsed UV laser photolysis, and photochemical quantum yields for product formation are determined spectroscopically. Comparisons of our results with those in the gas or crystalline phases are useful for discerning reaction dynamics in amorphous solids. In this report, we discuss work in progress to investigate acid-catalyzed photoinitiation, oligomerization and polymerization of amorphous formaldehyde.

Citation Download Citation

Charles A Wight, Thomas W Tang, and Edward S. Mansueto "Low Temperature Photochemistry In Amorphous Films", Proc. SPIE 1056, Photochemistry in Thin Films, (15 August 1989); https://doi.org/10.1117/12.951634

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