J-GLOBAL ID:200904061773289466  Research Project code:9911002663 Update date:Jan. 19, 2004

Study on heat radiation characteristics of perovskite-like Mn oxide

Study period:1998 - 2001
Organization (1):
Investigating Researcher (2):
Research overview:
The new type variable radiation rate type radiator using perovskite structure Mn oxide, a ferromagnetic material, has been performed and this year, improvement in the absorption rate of solar light has been tried. The spectroscopic reflection rate of perovskite Mn oxide between 1-100 micro meter was measured within the temperature range of 173-293 K and the temperature dependence of the optical constants was calculated using Kramers-Kronig (K-K) relation and then optimization of the multi-thin layer design was tried based on the genetic algorithm As the results, it has been found that absorption rate of solar light has been reduced from 0.81 to 0.24 and total semispherical absorption rate did not lose the intrinsic property. Preparation of multi thin layer has been started based on this.
Research program: Ordinary Research
Ministry with control over the research :
Ministry of Education, Culture, Sports, Science and Technology

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