Thermally conductive alumina/organic composites for photovoltaic concentrator cell isolation

Conference · Fri Jan 01 04:00:00 EST 1988

OSTI ID:7068373

Beavis, L C; Panitz, J K.G.; Sharp, D J

Electrophoretically deposited styrene-acrylate films were studied. These yield marginally useful thermal conductivities of 0.1--0.2 watts/meter-Kelvin, but have useful dielectric strengths over 2500 volts for 40 micrometer thick coatings. Thin, 25 micrometer, coatings of anodically grown Al/sub 2/O/sub 3/ films were also investigated. These films have thermal conductivities of approximately 6--8 watts/meter-Kelvin. Although these Al/sub 2/O/sub 3/ films have greater thermal conductivity than the polymer films, they exhibit porosity which typically limits their dielectric strength to less than 1000 volts. In the current study we have determined that styrene-acrylate can be electrophoretically deposited in porous anodic aluminum oxide films to form an alumina-organic composite with improved electrical breakdown strengths as well as higher thermal conductivity than styrene-acrylate films. 7 refs., 2 tabs.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 7068373
• Report Number(s): SAND-88-2624C; CONF-880965-11; ON: DE89001181
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
36 MATERIALS SCIENCE
360603 -- Materials-- Properties
ACRYLATES
ALKYLATED AROMATICS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AROMATICS
CARBOXYLIC ACID SALTS
CHALCOGENIDES
COMPOSITE MATERIALS
DIELECTRIC PROPERTIES
DIRECT ENERGY CONVERTERS
ELECTRICAL PROPERTIES
FILMS
HYDROCARBONS
MATERIALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
POROSITY
STYRENE
THERMAL CONDUCTIVITY
THERMODYNAMIC PROPERTIES