asteroza + ir + hafnium   3

OSA | Study of W/HfO2 grating selective thermal emitters for thermophotovoltaic applications
Interesting, tungsten with a hafnium oxide grating over it has highly selective IR emittance, making it well matched for gallium based TPV cells
tungsten  emitter  hafnium  oxide  transverse  magnetic  polarization  surface  plasmon  shaping  IR  TPV  cell  matching  power  generator  materials  science  research  technology 
9 weeks ago by asteroza
Passive radiative cooling below ambient air temperature under direct sunlight : Nature : Nature Publishing Group
Interesting mixed material which re-emits heat at atmospheric IR transparency windows, effectively becoming a passive cooler. So an external radiator on earth covered with this paint can get pretty cool.
photonic  radiative  cooling  solar  radiator  mirror  selective  thermal  emitter  materials  science  research  technology  passive  hafnium  silicon  dioxide  tuned  cooler  nanoparticle  layer  IR  infrared  transparency  window  atmospheric  green  paint  surface  treatment  Delicious 
december 2014 by asteroza

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