Energy transfer processes in solar energy conversion. Progress report, January 1, 1988--December 31, 1988
The program involves the investigation of excitation transport and electron transfer in complex systems. In the area of electron transfer, we have been studying electron back transfer following donor-acceptor photoinduced electron transfer. We are addressing this problem both theoretically and experimentally. In the area of excitation transport, we have been examining transport in solid solutions, liquid solutions, and in clustered excitation transport systems. Again, we are pursuing both experimental and theoretical approaches. The problem of electron back transfer between photogenerated ions is of central importance in both artificial and biological solar energy conversion. Once an electron has been transferred from an optically excited donor to an acceptor, back transfer competes with the ability of the radical ions to go on to do useful chemistry. We are studying the back transfer process using picosecond transient grating experiments in conjunction with time resolved and steady state fluorescence quenching measurements. The transient grating experiments makes the back transfer process a direct experimental observable, while the fluorescence experiments allow the forward transfer to be examined. By combining the experiments, a complete picture emerges. 10 refs.
- Research Organization:
- Stanford Univ., CA (United States). Dept. of Chemistry
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG03-84ER13251
- OSTI ID:
- 10102276
- Report Number(s):
- DOE/ER/13251-T2; ON: DE92003462
- Resource Relation:
- Other Information: PBD: [1988]
- Country of Publication:
- United States
- Language:
- English
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Energy transfer processes in solar energy conversion
Energy transfer processes in solar energy conversion. Progress report
Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
EXCITED STATES
ELECTRON TRANSFER
FLUORESCENCE
QUENCHING
PMMA
PHASE STUDIES
POLYVINYLS
PROGRESS REPORT
SOLAR ENERGY CONVERSION
RADICALS
DYE LASERS
STATISTICAL MECHANICS
DIFFUSION
PHOTOCHEMICAL REACTIONS
QUINONES
CONDENSED AROMATICS
140505
400500
PHOTOCHEMICAL, PHOTOBIOLOGICAL, AND THERMOCHEMICAL CONVERSION
PHOTOCHEMISTRY