Investigation of heterojunction photocells with an intermediate energy conversion stage at high illumination intensities

Journal Article · Tue Apr 01 00:00:00 EST 1980 · Sov. Phys. - Semicond. (Engl. Transl.); (United States)

OSTI ID:5418651

Alferov, Z I; Aripov, K K; Egorov, B V; Larinov, V R; Fedorova, V D; Ernandes, L

The current-voltage characteristics and sensitivity spectra were determined for high-current AlGaAs heterojunction photocells with a built-in luminescence wavelength converter. A study was made of the influence of the degree of doping of the p-type converter layer on the sensitivity spectrum and on the internal resistance. Photocells with the optimal degree of doping (N/sub A/ = x 10/sup 17/ cm/sup -3/) illuminated with concentrated solar radiation had a power output up to 14.2 W (diameter 10 mm, degree of concentration K = 1800, efficiency = 15%). In the case of samples 4 mm in diameter a specified output power of 34 W/cm/sup 2/ and an efficiency of 18.2% (for K = 2600) were achieved.

• Research Organization: Ioffe Physicotechnical Inst., Leningrad, USSR
• OSTI ID: 5418651
• Journal Information: Sov. Phys. - Semicond. (Engl. Transl.); (United States), Vol. 14:4; Other Information: Translation of Fiz. Tekh. Poluprovodn.; 14(1980)
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
GALLIUM ARSENIDE SOLAR CELLS
CRYSTAL DOPING
FREQUENCY CONVERTERS
PERFORMANCE
ALUMINIUM ARSENIDES
BRIGHTNESS
CONCENTRATION RATIO
EFFICIENCY
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
HETEROJUNCTIONS
LUMINESCENCE
P-TYPE CONDUCTORS
POWER RANGE 10-100 KW
SPECTRAL RESPONSE
ALUMINIUM COMPOUNDS
ARSENIC COMPOUNDS
ARSENIDES
CURRENTS
DIRECT ENERGY CONVERTERS
EQUIPMENT
JUNCTIONS
MATERIALS
OPTICAL PROPERTIES
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
PNICTIDES
SEMICONDUCTOR JUNCTIONS
SEMICONDUCTOR MATERIALS
SOLAR CELLS
SOLAR EQUIPMENT
140501* - Solar Energy Conversion- Photovoltaic Conversion