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Advances in Synthesis, Characterization, and Applications of Advanced Functional Materials for Architectures

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Smart Materials".

Deadline for manuscript submissions: closed (20 January 2024) | Viewed by 2104

Special Issue Editor


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Guest Editor
State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
Interests: smart windows; gas sensing; thermochromic; coatings; catalytic performance
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Special Issue Information

Dear Colleagues,

Advanced functional materials for architectures have attracted much attention because more and more functional materials are applied widely in buildings to endow architectures with various novel properties, including quantum dots used in fluorescent solar concentrators in windows and multifunctional film materials. With these properties, architectures can economize building energy consumption by controlling and utilizing solar irradiation, thus making our life better and more comfortable. This Special Issue plans to give an overview of the most recent advances in the field of advanced functional materials for architectures. This Special Issue aims to provide selected contributions on advances in the synthesis, characterization, and applications of advanced functional materials for architectures.

Potential topics include but are not limited to:

  • Fluorescent solar concentrators in windows;
  • Smart materials for windows;
  • Solar cells for architectures;
  • Energy-efficient glass;
  • Self-cleaning glass;
  • Multifunctional film materials;
  • Role of advanced functional materials in buildings.

Dr. Shouqin Tian
Guest Editor

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Keywords

  • thin films
  • smart windows
  • building materials
  • advanced functional materials
  • coated glass

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Published Papers (1 paper)

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Research

16 pages, 5378 KiB  
Article
Modulation of Structure and Optical Property of Nitrogen-Incorporated VO2 (M1) Thin Films by Polyvinyl Pyrrolidone
by Meinan Wan, Mo Xiong, Shouqin Tian, Xingzhu Chen, Bin Li, Xuesong Lu and Xiujian Zhao
Materials 2023, 16(1), 208; https://doi.org/10.3390/ma16010208 - 26 Dec 2022
Cited by 4 | Viewed by 1709
Abstract
VO2, as a promising material for smart windows, has attracted much attention, and researchers have been continuously striving to optimize the performance of VO2-based materials. Herein, nitrogen-incorporated VO2 (M1) thin films, using a polyvinylpyrrolidone (PVP)-assisted sol–gel method followed [...] Read more.
VO2, as a promising material for smart windows, has attracted much attention, and researchers have been continuously striving to optimize the performance of VO2-based materials. Herein, nitrogen-incorporated VO2 (M1) thin films, using a polyvinylpyrrolidone (PVP)-assisted sol–gel method followed by heat treatment in NH3 atmosphere, were synthesized, which exhibited a good solar modulation efficiency (ΔTsol) of 4.99% and modulation efficiency of 37.6% at 2000 nm (ΔT2000 nm), while their visible integrated transmittance (Tlum) ranged from 52.19% to 56.79% after the phase transition. The crystallization, microstructure, and thickness of the film could be regulated by varying PVP concentrations. XPS results showed that, in addition to the NH3 atmosphere-N doped into VO2 lattice, the pyrrolidone-N introduced N-containing groups with N–N, N–O, or N–H bonds into the vicinity of the surface or void of the film in the form of molecular adsorption or atom (N, O, and H) filling. According to the Tauc plot, the estimated bandgap of N-incorporated VO2 thin films related to metal-to-insulator transition (Eg1) was 0.16–0.26 eV, while that associated with the visible transparency (Eg2) was 1.31–1.45 eV. The calculated Eg1 and Eg2 from the first-principles theory were 0.1–0.5 eV and 1.4–1.6 eV, respectively. The Tauc plot estimation and theoretical calculations suggested that the combined effect of N-doping and N-adsorption with the extra atom (H, N, and O) decreased the critical temperature (τc) due to the reduction in Eg1. Full article
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