High-performance selective Er-doped YAG emitters for thermophotovoltaics

W.J. Tobler and W. Durisch

Applied Energy, 2008, vol. 85, issue 6, 483-493

Abstract: Selective emitters for thermophotovoltaics have been produced by vacuum plasma-spray coating of erbium doped garnet Er1.5Y1.5Al5O12 and Er2O3 on the intermetallic alloy MoSi2. The emitters are fully operable in an oxygen-containing atmosphere at a temperature of 1600 °C, are highly thermal-shock stable, and show good selective-emitting properties. The film thickness of the rare-earth oxide was varied between 200 and 600 [mu]m and an optimal thickness for maximum selectivity was found. Measurements with Si and GaSb photocells have been performed in order to evaluate the optimal combination emitter - photocell for real thermophotovoltaic systems.

Keywords: 78.20.-e; Thermophotovoltaics; MoSi2; Rare-earth; oxide; Er-oxide; Plasma-spray; coating; Selective; emitter; GaSb; photocell; Si; photocell (search for similar items in EconPapers)
Date: 2008
References: View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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