Photochemical conversion of solar energy. Annual report, January 1, 1974--December 31, 1974. [Iron-thionine]
Patent application was made for the thin layer (50 to 300 microns) totally illuminated (TI-TL) photogalvanic cell with semiconductor electrode(s). Quantum efficiencies for current and power conversion of absorbed light of an iron-thionine TL cell with SnO/sub 2/ and Pt electrodes were, respectively, 64% and 1.5%. A 2.6 x 10/sup -2/% engineering efficiency for power conversion of incident sunlight by the TI-TL iron-thionine cell was observed with illumination normal to the electrodes. This efficiency is approximately 10/sup 2/-fold greater than previously reported values. End-on illumination gave 5.7 x 10/sup -2/% engineering efficiency. Sunlight efficiencies were similar for iron-thionine (lambda/sub max/ = 602 nm) and iron-methylene blue (lambda/sub max/ = 665 nm); power outputs were additive with both dyes present. Initial work on photoformation of Br/sub 2/ from aqueous FeBr/sub 3/, a simple fuel-forming reaction, achieved a 5% quantum yield at 436 nm. A workshop devoted to photochemical formation of fuel was held at Boston University's Osgood Hill Conference Center on September 23 and 24, 1974. Abstracts of papers and summaries of discussions are included.
- Research Organization:
- Boston Univ., MA (USA). Dept. of Chemistry
- OSTI ID:
- 5228856
- Report Number(s):
- NSF/RANN/SE/AER-72-03597/A03/74/4
- Country of Publication:
- United States
- Language:
- English
Similar Records
Photochemical conversion of solar energy. Annual report, January 1, 1975--December 31, 1975. [Iron--thiazine and iron--thionine]
Photochemical conversion of solar energy. Semi-annual progress report, January 1, 1974--June 30, 1974. [Iron--thionine]
Related Subjects
PHOTOGALVANIC CELLS
EFFICIENCY
PHOTOCHEMISTRY
RESEARCH PROGRAMS
BROMINE
ELECTRODES
IRON
IRON BROMIDES
MEETINGS
METHYLENE BLUE
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
PLATINUM
SEMICONDUCTOR MATERIALS
THIONINE
TIN OXIDES
AMINES
AZINES
BROMIDES
BROMINE COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
DECOMPOSITION
DRUGS
ELECTROCHEMICAL CELLS
ELEMENTS
HALIDES
HALOGEN COMPOUNDS
HALOGENS
HETEROCYCLIC COMPOUNDS
IRON COMPOUNDS
METALS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHENOTHIAZINES
PLATINUM METALS
TIN COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
140505* - Solar Energy Conversion- Photochemical
Photobiological
& Thermochemical Conversion- (1980-)