12% solar conversion efficiency by interphase restructuring
Journal Article
·
· Appl. Phys. Lett.; (United States)
Solar energy conversion efficiency of n-CuInSe/sub 2//p-CuISe/sub 3/ heterojunction formed in situ and contacted by I/sup -/-I/sub 2/-Cu/sup +/-HI electrolyte has been increased to 12% by modifying the growth conditions of the p-CuISe/sub 3/ phase. These include the use of prepolished n-CuInSe/sub 2/ (110) surfaces, higher concentrations of HI and Cu/sup +/, and an air anneal at 200 /sup 0/C. X-ray fluorescence analysis in conjunction with scanning electron micrographs of the new interphase indicates structural and compositional alterations and possibly further transformation of CuISe/sub 3/ to CuIn/sub 2/Se/sub 3/I. Temperature dependence of the cell performance indicates solid state effects and relative independence of electrochemical kinetics.
- Research Organization:
- Hanh--Meitner-Institut fuer Kernforschung Berlin, Bereich Strahlenchemie, Postbox, D-1000 Berlin 39, Federal Republic of Germany
- OSTI ID:
- 6858244
- Journal Information:
- Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 45:2; ISSN APPLA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
14 SOLAR ENERGY
140501 -- Solar Energy Conversion-- Photovoltaic Conversion
140505* -- Solar Energy Conversion-- Photochemical
Photobiological
& Thermochemical Conversion-- (1980-)
ANNEALING
CHALCOGENIDES
CHARGED PARTICLES
COPPER COMPOUNDS
COPPER IONS
COPPER SELENIDES
EFFICIENCY
ELECTROCHEMICAL CELLS
ELECTROLYTES
ELECTRON MICROSCOPY
ELEMENTS
EQUIPMENT
FLUORESCENCE
HALIDES
HALOGEN COMPOUNDS
HALOGENS
HEAT TREATMENTS
HETEROJUNCTIONS
HYDROGEN COMPOUNDS
INDIUM COMPOUNDS
INDIUM SELENIDES
INTERFACES
IODIDES
IODINE
IODINE COMPOUNDS
IONS
JUNCTIONS
LUMINESCENCE
MICROSCOPY
NONMETALS
PERFORMANCE
PHOTOELECTROCHEMICAL CELLS
SCANNING ELECTRON MICROSCOPY
SELENIDES
SELENIUM COMPOUNDS
SELENIUM IODIDES
SEMICONDUCTOR JUNCTIONS
SOLAR EQUIPMENT
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
140501 -- Solar Energy Conversion-- Photovoltaic Conversion
140505* -- Solar Energy Conversion-- Photochemical
Photobiological
& Thermochemical Conversion-- (1980-)
ANNEALING
CHALCOGENIDES
CHARGED PARTICLES
COPPER COMPOUNDS
COPPER IONS
COPPER SELENIDES
EFFICIENCY
ELECTROCHEMICAL CELLS
ELECTROLYTES
ELECTRON MICROSCOPY
ELEMENTS
EQUIPMENT
FLUORESCENCE
HALIDES
HALOGEN COMPOUNDS
HALOGENS
HEAT TREATMENTS
HETEROJUNCTIONS
HYDROGEN COMPOUNDS
INDIUM COMPOUNDS
INDIUM SELENIDES
INTERFACES
IODIDES
IODINE
IODINE COMPOUNDS
IONS
JUNCTIONS
LUMINESCENCE
MICROSCOPY
NONMETALS
PERFORMANCE
PHOTOELECTROCHEMICAL CELLS
SCANNING ELECTRON MICROSCOPY
SELENIDES
SELENIUM COMPOUNDS
SELENIUM IODIDES
SEMICONDUCTOR JUNCTIONS
SOLAR EQUIPMENT
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS