Predictions of electronic structures and optical performance of potential near infrared absorber Sn0.33WO3
Source abstract
Abstract
For better synthesis and development of novel WO3-based near infrared absorbing materials for smart-window applications, the structural, electronic, and optical properties of hexagonal Sn0.33WO3 were investigated through the first-principles calculation. The optimized crystal structure parameters agree well with experimental values. The electronic structure shows that when Sn ions are doped in the host hexagonal WO3, Sn0.33WO3 displays a typical n-type electronic conductivity, which leads to an upshift of the Fermi energy to the conduction band. It was found that Sn0.33WO3 exhibits low reflectivity and weak absorption in the visible region, while exhibiting strong reflectivity and absorption in the near infrared light region. Therefore, it significantly reduces the optical transmittance of infrared wavelengths (down to 3.9% for the compacted film and 25.3% for the coated film), while maintaining fair optical transparency for visible wavelengths. This research indicates that Sn0.33WO3 is a prospective near infrared absorber and it can be used as near infrared shielding filters for smart windows with high transparency for visible light.
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Research context
OpenAlex topics: Transition Metal Oxide Nanomaterials · ZnO doping and properties · Gas Sensing Nanomaterials and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Mathematics and Physics Science, Hunan University of Arts and Science 1 , Changde 415000, China
Guizhou Institute of Technology 2 , Guiyang 550003, People’s Republic of China
School of Materials Science and Engineering, Hunan University 3 , Changsha, Hunan 410082, People’s Republic of China
Funding
Foundation for Innovative Research Groups of the National Natural Science Foundation of China · Guizhou Science and Technology Department · Guizhou Provincial Department of Education
References (28)
Show source-provided references
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