Effect of Mie Scattering on Thermochromic Performance of Branched VO2 Prepared by One-Step Hydrothermal Method

被引：11
|
作者：
Wang, Xi [1 ]
Li, Ming [2 ]
Wang, Qingsheng [3 ]
Zhang, Jikui [1 ]
Shi, Jiaming [1 ]
Lu, Yuan [1 ]
Li, Guanghai [2 ]
机构：
[1] Natl Univ Def Technol, State Key Lab Pulsed Power Laser Technol, Anhui Lab Adv Laser Technol, Hefei 230037, Peoples R China
[2] Chinese Acad Sci, Key Lab Mat Phys, Anhui Key Lab Nanomat & Nanotechnol, Inst Solid State Phys, Hefei 230031, Peoples R China
[3] Chinese Acad Sci, AIOFM, Hefei 230031, Peoples R China
来源：
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2020年 / 2020卷 / 18期
基金：
中国国家自然科学基金;
关键词：
Branched-VO2; Hydrothermal; Mie scattering; Thermochromic; Ball-milled VO2; PHASE-TRANSITION; CRYSTAL-GROWTH; NANOPARTICLES; FILMS; SIZE; TRANSFORMATION; TEMPERATURE; MORPHOLOGY; EVOLUTION;
D O I：
10.1002/ejic.202000123
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
In this work, gram-scale branched-VO2 (B-VO2) was synthesized via a mild one-step hydrothermal route, and the corresponding phase transition, optical and electrical performances of B-VO2 were investigated. The differential scanning calorimeter (DSC) results revealed the defect mediated phase transition behavior of B-VO2. The optical studies demonstrated an analogous negative thermochromic performance of B-VO2, which was ascribed to the intense Mie scattering effect. While, ball milling treatment was an effective way to restore the regular thermochromic property, and the ball-milled VO2 (BM-VO2) displayed a 6.3 % increasement of the solar modulation ability. The BM-VO2 films on flexible PET and PI substrates demonstrated both energy-saving and UV-shielding functions. The temperature dependent resistivity displayed about two orders of magnitude change during the phase transition of VO2.
引用
收藏
页码：1783 / 1789
页数：7
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