PRIMARY PHOTOPROCESSES IN ORGANIC MATERIALS.
Abstract
The work is in four parts: The first part describes the development of a fluorescence lifetime apparatus and its use in the study of energy and electron transfer reactions, and of quenching by oxygen; The second part is a theoretical discussion of electron distribution and reactivity of the excited states of carbonyl compounds; Part III gives an account of a detailed study of the interaction of photoexcited chlorophyll with quinones of significance in photosynthesis; and The fourth part of the work describes the development of a nanosecond flash photolysis apparatus, using a Q switched, frequency doubled ruby laser. The apparatus is capable of recording a sequence of time resolved spectra by means of a time delayed, laser excited fluorescent source and also of kinetic photoelectric spectrometry at a single wavelength. It has been used to obtain, for the first time, the absorption spectra of the excited singlet states of many organic molecules and for kinetic studies of the short-lived triplet states of ketones and quinones. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 31, 1969
- Accession Number
- AD0709761
Entities
People
- George Porter
- John Kelly
- Larry K. Patterson
- Paul Suppan
Organizations
- Royal Institution