Hetero-assembly design of 2D oxide nanosheets for tailored thermal shielding materials

Abstract We present a new approach for designing thermal shielding materials using two-dimensional oxide nanosheets. Our approach uses hetero-assembly design [(Ti 0.87 O 2 ) m (Cs 2.7 W 11 O 35− d ) 20 ( m = 0, 5, 10)] by overlaying high refractive index ( n ) Ti 0.87 O 2 nanosheets with transparent...

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Published inApplied physics express Vol. 17; no. 1; pp. 15002 - 15006
Main Authors Tsunematsu, Hirofumi, Nishibashi, Keita, Yamamoto, Eisuke, Kobayashi, Makoto, Yoshida, Tomohiro, Osada, Minoru
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.01.2024
Subjects
2D nanosheets
layer-by-layer engineering
NIR reflectance
thermal shielding
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Summary:Abstract We present a new approach for designing thermal shielding materials using two-dimensional oxide nanosheets. Our approach uses hetero-assembly design [(Ti 0.87 O 2 ) m (Cs 2.7 W 11 O 35− d ) 20 ( m = 0, 5, 10)] by overlaying high refractive index ( n ) Ti 0.87 O 2 nanosheets with transparent conducting Cs 2.7 W 11 O 35− d nanosheets. Through proper design of the thickness of high- n Ti 0.87 O 2 layers, we achieved the optimum thermal shielding properties with a high NIR reflectance (>46%), a high visible transparency (>76%) and a neutral color in an ultrathin form (<60 nm). Our nanosheet approach is of technological importance for exploring new thermal shielding materials.
Bibliography:APEX-107717.R1
ISSN:1882-0778
1882-0786
DOI:10.35848/1882-0786/ad13ce