2022
DOI: 10.1021/acsaem.1c03685
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W-VO2/Cs0.32WO3 Composite Flexible Films: Promoted Metal–Insulator Transition and Enhanced Near-Infrared Shielding

Abstract: VO2 is a promising candidate for smart energy-saving windows because of its unique thermochromism but suffers from a high transition temperature of 68 °C and poor thermochromic performance near room temperature. We fabricated a W-VO2/Cs0.32WO3 (CWO) composite flexible film, which shows a low transition temperature of 31.1 °C (W-VO2/CWO = 1:1) and much enhanced near-infrared shielding performance. The optimal W-VO2 + 0.5CWO reaches a desired near-infrared shielding efficiency of 76.34%. A model-house test under… Show more

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Cited by 10 publications
(2 citation statements)
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“…[7] Smart windows have the characteristics of dynamic regulation of indoor solar radiation, which can effectively improve building energy efficiency. [8] Smart windows are categorized based on different stimuli, including heat, [9][10][11][12][13] electricity, [14][15][16][17][18][19][20] light, [21][22][23][24][25][26] and humidity. [27,28] Thermochromic smart windows are highly competitive among different response modes due to their unique features such as low cost, simple structure, passivity, and reasonable stimulus-response.…”
Section: Introductionmentioning
confidence: 99%
“…[7] Smart windows have the characteristics of dynamic regulation of indoor solar radiation, which can effectively improve building energy efficiency. [8] Smart windows are categorized based on different stimuli, including heat, [9][10][11][12][13] electricity, [14][15][16][17][18][19][20] light, [21][22][23][24][25][26] and humidity. [27,28] Thermochromic smart windows are highly competitive among different response modes due to their unique features such as low cost, simple structure, passivity, and reasonable stimulus-response.…”
Section: Introductionmentioning
confidence: 99%
“…3,17 Tungsten bronze (M x WO 3 , M = Li, Na, K, Rb, Cs, NH 4 ) is a novel transparent conductive oxide widely used in the fields of optics, electricity and chemistry, which has excellent visible transparency and NIR shielding properties and has potential applications in the field of energy-saving materials. [18][19][20] Among those M x WO 3 , Cs x WO 3 (CWO) nanocrystals which exhibit a strong localized surface plasmon resonance (LSPR) effect and small polaron transfer in near-infrared radiation are considered to be one of the most promising candidates for NIR filters. 21 Applying their NIR shielding performance to the field of thermal insulation coating can maintain comfortable temperature inside buildings and vehicles, reduce energy consumption, and they play a very prominent role in energy conservation.…”
Section: Introductionmentioning
confidence: 99%