skip to main content

Title: TPV Systems with Solar Powered Tungsten Emitters

A solar TPV generator development and characterization are presented. A double stage sunlight concentrator ensures 4600x concentration ratio. TPV modules based on tungsten emitters and GaSb cells were designed, fabricated and tested at indoor and outdoor conditions. The performance of tungsten emitter under concentrated solar radiation was analyzed. Emitter temperatures in the range of 1400-2000 K were measured, depending on the emitter size. The light distribution in the module has been characterized, 1x1 cm GaSb TPV cells were fabricated with the use of the Zn-diffusion and LPE technologies. The cell efficiency of 19% under illumination by a tungsten emitter (27% under spectra cut-off at {lambda} > 1820 nm) heated up to 1900-2000 K had been derived from experimentally measured PV parameters. The series connection of PV cells was ensured by the use of BeO ceramics. The possibilities of system performance improvement are discussed.
Authors:
; ; ; ; ;  [1]
  1. A.F. Ioffe Physical-Technical Institute, 26 Polytechnicheskaya, 194021, St. Petersburg (Russian Federation)
Publication Date:
OSTI Identifier:
21054926
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 890; Journal Issue: 1; Conference: TPV7: 7. world conference on thermophotovoltaic generation of electricity, Madrid (Spain), 25-27 Sep 2006; Other Information: DOI: 10.1063/1.2711750; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BERYLLIUM OXIDES; CERAMICS; CONCENTRATION RATIO; DIFFUSION; EFFICIENCY; GALLIUM ANTIMONIDES; GALLIUM ARSENIDE SOLAR CELLS; LIQUID PHASE EPITAXY; PERFORMANCE; SEMICONDUCTOR MATERIALS; SOLAR RADIATION; TEMPERATURE DEPENDENCE; THERMOPHOTOVOLTAIC CONVERSION; TUNGSTEN