Thermophotovoltaic generation with selective radiators based on tungsten surface gratings
By H. Sai, H. Yugami. 2004
167 citations recorded by the source corpus.
Two-dimensional surface-relief gratings with a period of 1.0–0.2μm composed of rectangular microcavities were fabricated on single crystalline W substrates to develop spectrally selective radiators for thermophotovoltaic generation. The radiators displayed strong emission in the near-infrared region where narrow-band-gap photovoltaic cells could convert photons into electricity. The enhancement of thermal emission was attributed to the microcavity effect. Power generation tests were carried out and the W gratings showed more than two times higher generation efficiency, compared to a SiC radiator. The results showed that the microstructured W radiators behave as good selective radiator, with both high efficiency and high power density.
Subfields: Atomic and Molecular Physics, and Optics, Civil and Structural Engineering, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/294561842ca9750942065f9c6595ef40d4f57b1c
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Citations in the corpus
- Study of magnetic polaritons in deep gratings for thermal emission control (2014, methodology): “The cavity resonance model has often been used to explain the emittance peaks for 2D grating or cavity structures [6,13,14]:”
- Thermophotovoltaic emitters based on a two-dimensional grating/thin-film nanostructure (2013, background): “[20–22] experimentally demonstrated the potentials of 2D concave tungsten surface gratings as TPV emitters whose emittance is enhanced by exciting cavity resonances.”