Download file (4MB)
Download as zip (3.91MB)

コレクション

引用

説明:

Tungsten oxide (WO3) is known for its photochromic properties, making it useful for smart windows, displays, and sensors. However, its small bandgap leads to rapid recombination of electron–hole pairs, resulting in poor photochromic performance. This study aims to enhance the photochromic properties of WO3 by synthesizing hexagonal tungsten oxide via hydrothermal synthesis, which increases surface area and internal hydrates. Titanium oxide (TiO2) was adsorbed onto the tungsten oxide to inject additional charges and reduce electron–hole recombination. Additionally, polyvinylpyrrolidone (PVP) was used to improve dispersion in organic solvents, allowing for the fabrication of high-quality films using the doctor blade method. Characterization confirmed the enhanced surface area, crystal structure, and dispersion stability. Reflectance and transmittance measurements demonstrated significant improvements in photochromic properties due to the composite structure. These findings suggest that the introduction of TiO2 and PVP to tungsten oxide effectively enhances its photochromic performance, broadening its applicability in various advanced photochromic applications.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: tungsten oxide nanoparticles, hybrid composite, dispersibility, photochromic property

刊行年月日: 2024-06-29

出版者: MDPI AG

掲載誌:

• Nanomaterials (ISSN: 20794991) vol. 14 issue. 13 1121

研究助成金:

• Ministry of Trade, Industry and Energy 20010838

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.3390/nano14131121

関連資料:

その他の識別子:

連絡先:

更新時刻: 2024-08-29 08:30:27 +0900

MDRでの公開時刻: 2024-08-29 08:30:27 +0900