Thermochromic properties of some colored oxide materials

Autor: Gabriel Ferro, Davy Carole, François Cauwet, Loren Acher, Hyewon Ji, Rodica Chiriac, François Toche, Arnaud Brioude
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Optical Materials: X, Vol 15, Iss , Pp 100167- (2022)
Druh dokumentu: article
ISSN: 2590-1478
DOI: 10.1016/j.omx.2022.100167
Popis: The thermochromic properties up to 500 °C of some colored, commercial and non-toxic oxides were studied. It includes Bi2O3, Fe2O3, In2O3, WO3, Er2O3, YAG:Ce (Ce doped yttrium aluminum garnet Y3Al5O12) and YInMn-Blue (Mn doped yttrium indium oxide YInO3). From the CIELAB colorimetric parameters (L*a*b*), evolution of the color contrast ΔE with temperature was calculated. It allowed estimating that most of these oxides change color reversibly with increasing temperature, the strongest thermochromism being found for Bi2O3 (ΔE ∼ 65 at 500 °C). Two exceptions were identified: i) Er2O3 which stayed almost identically pink with ΔE
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