Publications (2)2.32 Total impact
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Article: Greater than 20% radiant heat conversion efficiency of a thermophotovoltaic radiator/module system using reflective spectral control
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ABSTRACT: An InGaAs monolithic interconnected module (MIM) using reflective spectral control has been fabricated and measured in a thermophotovoltaic radiator/module system (radiator, optical cavity, and thermophotovoltaic module). Results showed that at a radiator and module temperature of 1039°C and 25°C, respectively, 23.6% thermophotovoltaic radiator/module system radiant heat conversion efficiency and 0.79W/cm<sup>2</sup> maximum thermophotovoltaic radiator/module system power density were obtained. The use of reflective spectral control increased the spectral efficiency and thus the thermophotovoltaic radiator/module system radiant heat conversion efficiency by ∼16% (relative). However, the amount of useful radiation reaching the MIM decreased by ∼7% (relative) compared to using transmissive spectral control. Also, the thermophotovoltaic system radiant heat conversion efficiency and maximum power density using either transmissive or reflective spectral control decreased as the MIM temperature increased. The MIM using reflective spectral control was found to be more sensitive to changes in the MIM temperature than the MIM using transmissive spectral control.IEEE Transactions on Electron Devices 04/2004; · 2.32 Impact Factor -
Conference Proceeding: Multi-wafer growth and processing of 0.6-eV InGaAs monolithic interconnected modules
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ABSTRACT: Recent progress in the optical and electrical performance of monolithic interconnected modules (MIMs) has produced an interest in manufacturing large quantities of cells for evaluation. Information resulting from this evaluation is necessary to produce and optimize a TPV system, where a large number of devices with a nominal performance must be available for insertion into series/parallel electrical networks. In this work over 130 wafers comprising three different device designs were grown, with representative wafers from each design processed in a pilot-line manufacturing environment. This paper describes the material growth, device design and processing, and electrical performance of these cells.Photovoltaic Specialists Conference, 2002. Conference Record of the Twenty-Ninth IEEE; 06/2002
