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Final Report: Bandgap-Engineered Thermophotovoltaic Devices for Hi Efficiency Radioisotope Power, July 9, 1996 - July 8, 1999

Description: During Phase I the feasibility of fabricating high-performance, low bandgap (0.58ev)PV cells by thermally diffusing p-n junctions in GaSb based quaternary materials was established. During phase II, bandgap engineered thermophotovoltaic (TPV) cells were optimized, development of a low-cost build source material for quaternary devices was investigated, and a diesel-fueled, TPV test-bed was built and tested allowing its performance to be characterized.
Date: March 15, 2000
Creator: Sundaram, V; Morgan, M.D. & Horne, W.E.
Partner: UNT Libraries Government Documents Department

Thermionic converter with differentially heated cesium-oxygen source and method of operation

Description: A thermionic converter having an emitter, a collector, and a source of cesium vapor is provided, wherein the source of cesium vapor is differentially heated so that said source has a hotter end and a cooler end, with cesium vapor evaporating from said hotter end into the space between the emitter and the collector and with cesium vapor condensing at said cooler end. The condensed cesium vapor migrates through a porous element from the cooler end to the hotter end.
Date: December 1, 1998
Creator: Rasor, N.S.; Riley, D.R.; Murray, C.S. & Geller, C.B.
Partner: UNT Libraries Government Documents Department