Photochemical energy storage: studies of inorganic photoassistance agents. Progress report, December 17, 1980-September 14, 1981

Technical Report · Tue Sep 01 04:00:00 EDT 1981

OSTI ID:6055264

Wrighton, M S

Work during the current contract period has concerned the use of certain n- and p-type semiconductors, including Si, InP, WS/sub 2/, TiO/sub 2/, and SrTiO/sub 3/, as photoelectrode materials in photoelectrochemical cells for optical energy conversion. Additionally, intrinsic a-Si:H on a stainless steel substrate has been characterized where the contact to the stainless steel is a thin, heavily doped n-type layer resulting in an ohmic contact near the conduction band. Study of p-type Si bearing a redox polymer/Pt(O) or Pd(O) catalyst system has been ongoing and improvements in photoelectrochemical H/sub 2/ generation via surface catalysis has been demonstrated. Highlights of the accomplishments so far are: (1) the demonstration that n-type WS/sub 2/-based photoelectrochemical cells can be used to sustain the uphill conversion of SO/sub 2/ and H/sub 2/O to H/sub 2/SO/sub 4/ and H/sub 2/ in 50% by weight H/sub 2/SO/sub 4/; (2) establishment of the behavior of photoconductor (a-Si:H) electrodes in contact with liquid electrolytes.

• Research Organization: Massachusetts Inst. of Tech., Cambridge (USA)
• OSTI ID: 6055264
• Report Number(s): DOE/ER/04178-5; ON: DE82000403
• Country of Publication: United States
• Language: English

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14 SOLAR ENERGY
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Photobiological
& Thermochemical Conversion-- (1980-)
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
CATALYSIS
CHALCOGENIDES
CHROMIUM ALLOYS
CORROSION RESISTANT ALLOYS
DOPED MATERIALS
EFFICIENCY
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTROLYSIS
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL DENSITY
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FERMI LEVEL
HYDROGEN PRODUCTION
INDIUM COMPOUNDS
INDIUM PHOSPHIDES
INTERFACES
IRON ALLOYS
IRON BASE ALLOYS
LYSIS
MATERIALS
METALS
OXIDES
OXYGEN COMPOUNDS
PALLADIUM
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PHOTOELECTROCHEMICAL CELLS
PHOTOELECTROLYSIS
PLATINUM METALS
PNICTIDES
SEMIMETALS
SILICON
SOLAR EQUIPMENT
STAINLESS STEELS
STEELS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SULFIDES
SULFUR COMPOUNDS
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TUNGSTEN COMPOUNDS
TUNGSTEN SULFIDES