Improving the thermochromic performance of VO2 films by embedding Cu-Al nanoparticles as heterogeneous nucleation cores in the VO2/VO2 bilayer structure

IF 3.1 3区 物理与天体物理 Q2 INSTRUMENTS & INSTRUMENTATION Infrared Physics & Technology Pub Date : 2024-11-02 DOI:10.1016/j.infrared.2024.105620
{"title":"Improving the thermochromic performance of VO2 films by embedding Cu-Al nanoparticles as heterogeneous nucleation cores in the VO2/VO2 bilayer structure","authors":"","doi":"10.1016/j.infrared.2024.105620","DOIUrl":null,"url":null,"abstract":"<div><div>VO<sub>2</sub>-based films show great potential applications in thermochromic smart windows. However, enhancing luminous transmittance (<em>T<sub>lum</sub></em>) while maintaining high solar modulation ability (<em>ΔT<sub>sol</sub></em>) remains a formidable challenge. Here, we present a novel VO<sub>2</sub>/Cu-Al nanoparticles (NPs)/VO<sub>2</sub> composite film structure, seamlessly integrating Cu-Al bimetallic NPs within VO<sub>2</sub> films by pulsed laser deposition on alkali-free glass substrates. The content of Cu-Al NPs in the composite films is controlled by the pulse number (<em>N<sub>p</sub></em>) applied to the Cu-Al alloy target. X-ray diffraction results indicate that the crystallinity of VO<sub>2</sub> films is significantly enhanced by the incorporation of an appropriate amount of Cu-Al NPs. The SEM characterization results revealed that the particle size of VO<sub>2</sub> composite films initially increases to approximately 131 nm and subsequently decreases to around 120 nm as <em>N<sub>p</sub></em> increases, with a concurrent transition in particle shape from quasi-circular to elongated. The <em>T<sub>lum</sub></em> and <em>ΔT<sub>sol</sub></em> of the resulting composite films were dramatically improved to 71.6 % and 9.5 %, respectively, when <em>N<sub>p</sub></em> was 300. These enhanced thermochromic properties are attributed to the localized surface plasmon resonance (LSPR) of the VO<sub>2</sub> particles. This research opens up a promising avenue for the convenient production of customized high-quality VO<sub>2</sub> films tailored for smart window applications.</div></div>","PeriodicalId":13549,"journal":{"name":"Infrared Physics & Technology","volume":null,"pages":null},"PeriodicalIF":3.1000,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Infrared Physics & Technology","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1350449524005048","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"INSTRUMENTS & INSTRUMENTATION","Score":null,"Total":0}
引用次数: 0

Abstract

VO2-based films show great potential applications in thermochromic smart windows. However, enhancing luminous transmittance (Tlum) while maintaining high solar modulation ability (ΔTsol) remains a formidable challenge. Here, we present a novel VO2/Cu-Al nanoparticles (NPs)/VO2 composite film structure, seamlessly integrating Cu-Al bimetallic NPs within VO2 films by pulsed laser deposition on alkali-free glass substrates. The content of Cu-Al NPs in the composite films is controlled by the pulse number (Np) applied to the Cu-Al alloy target. X-ray diffraction results indicate that the crystallinity of VO2 films is significantly enhanced by the incorporation of an appropriate amount of Cu-Al NPs. The SEM characterization results revealed that the particle size of VO2 composite films initially increases to approximately 131 nm and subsequently decreases to around 120 nm as Np increases, with a concurrent transition in particle shape from quasi-circular to elongated. The Tlum and ΔTsol of the resulting composite films were dramatically improved to 71.6 % and 9.5 %, respectively, when Np was 300. These enhanced thermochromic properties are attributed to the localized surface plasmon resonance (LSPR) of the VO2 particles. This research opens up a promising avenue for the convenient production of customized high-quality VO2 films tailored for smart window applications.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
通过在 VO2/VO2 双层结构中嵌入铜铝纳米粒子作为异质成核核心,提高 VO2 薄膜的热变色性能
基于 VO2 的薄膜在热致变色智能窗中显示出巨大的应用潜力。然而,在提高透光率(Tlum)的同时保持较高的太阳调制能力(ΔTsol)仍然是一项艰巨的挑战。在此,我们提出了一种新型 VO2/Cu-Al 纳米粒子 (NPs) /VO2 复合薄膜结构,通过脉冲激光沉积在无碱玻璃基底上,将 Cu-Al 双金属 NPs 无缝地集成在 VO2 薄膜中。复合薄膜中 Cu-Al NPs 的含量由应用于 Cu-Al 合金靶的脉冲数(Np)控制。X 射线衍射结果表明,加入适量的 Cu-Al NPs 能显著提高 VO2 薄膜的结晶度。SEM 表征结果表明,随着 Np 的增加,VO2 复合薄膜的粒径最初增大到约 131 nm,随后减小到约 120 nm,同时粒形从准圆形过渡到细长形。当 Np 为 300 时,所得复合薄膜的 Tlum 和 ΔTsol 分别大幅提高到 71.6% 和 9.5%。这些增强的热致变色特性归因于 VO2 粒子的局部表面等离子体共振 (LSPR)。这项研究为方便地生产用于智能窗应用的定制化高质量 VO2 薄膜开辟了一条大有可为的途径。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
CiteScore
5.70
自引率
12.10%
发文量
400
审稿时长
67 days
期刊介绍: The Journal covers the entire field of infrared physics and technology: theory, experiment, application, devices and instrumentation. Infrared'' is defined as covering the near, mid and far infrared (terahertz) regions from 0.75um (750nm) to 1mm (300GHz.) Submissions in the 300GHz to 100GHz region may be accepted at the editors discretion if their content is relevant to shorter wavelengths. Submissions must be primarily concerned with and directly relevant to this spectral region. Its core topics can be summarized as the generation, propagation and detection, of infrared radiation; the associated optics, materials and devices; and its use in all fields of science, industry, engineering and medicine. Infrared techniques occur in many different fields, notably spectroscopy and interferometry; material characterization and processing; atmospheric physics, astronomy and space research. Scientific aspects include lasers, quantum optics, quantum electronics, image processing and semiconductor physics. Some important applications are medical diagnostics and treatment, industrial inspection and environmental monitoring.
期刊最新文献
Intermediate state between steady and breathing solitons in fiber lasers Improving the thermochromic performance of VO2 films by embedding Cu-Al nanoparticles as heterogeneous nucleation cores in the VO2/VO2 bilayer structure Dielectric-elastomer-driven long-wave infrared Alvarez lenses for continuous zooming imaging An improved infrared polarization model considering the volume scattering effect for coating materials Gate-tunable in-sensor computing vdW heterostructures for infrared photodetection
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1