Photochemical conversion of solar energy. Annual report, January 1, 1974--December 31, 1974. [Iron-thionine]
Technical Report
·
OSTI ID:5228856
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
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Related Subjects
14 SOLAR ENERGY
140505* -- Solar Energy Conversion-- Photochemical
Photobiological
& Thermochemical Conversion-- (1980-)
AMINES
AZINES
BROMIDES
BROMINE
BROMINE COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
DECOMPOSITION
DRUGS
EFFICIENCY
ELECTROCHEMICAL CELLS
ELECTRODES
ELEMENTS
HALIDES
HALOGEN COMPOUNDS
HALOGENS
HETEROCYCLIC COMPOUNDS
IRON
IRON BROMIDES
IRON COMPOUNDS
MEETINGS
METALS
METHYLENE BLUE
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHENOTHIAZINES
PHOTOCHEMICAL REACTIONS
PHOTOCHEMISTRY
PHOTOGALVANIC CELLS
PHOTOLYSIS
PLATINUM
PLATINUM METALS
RESEARCH PROGRAMS
SEMICONDUCTOR MATERIALS
THIONINE
TIN COMPOUNDS
TIN OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
140505* -- Solar Energy Conversion-- Photochemical
Photobiological
& Thermochemical Conversion-- (1980-)
AMINES
AZINES
BROMIDES
BROMINE
BROMINE COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
DECOMPOSITION
DRUGS
EFFICIENCY
ELECTROCHEMICAL CELLS
ELECTRODES
ELEMENTS
HALIDES
HALOGEN COMPOUNDS
HALOGENS
HETEROCYCLIC COMPOUNDS
IRON
IRON BROMIDES
IRON COMPOUNDS
MEETINGS
METALS
METHYLENE BLUE
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHENOTHIAZINES
PHOTOCHEMICAL REACTIONS
PHOTOCHEMISTRY
PHOTOGALVANIC CELLS
PHOTOLYSIS
PLATINUM
PLATINUM METALS
RESEARCH PROGRAMS
SEMICONDUCTOR MATERIALS
THIONINE
TIN COMPOUNDS
TIN OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS