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Abstract : The paper presents results concerning CVD thin films of transition metals W and Mo and their composite structures WO2 : W and MoO2 : Mo, as well as WO3 films. The composite structure materials consisting of a suspension of metallic molybdenum or tungsten grains in a host matrix of metal dioxide demonstrate significant solar absorptance coupled with a high infrared reflectance, which is necessary for efficient conversion of solar energy into heat. Transition metal trioxides thin films, known as electrochromic materials have been studied with respect to the technological conditions for their growth. It is found that they start to grow up at temperatures in the range of 500 °C. Spectral transmittance and the structure of WO3films were investigated.





Autor: K. Gesheva D. Gogova

Fuente: https://hal.archives-ouvertes.fr/



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