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<p>Transparent heat-shielding glass offers a highly effective solution for lowering energy consumption in the construction sector. In this study, rod-like Cs<sub>0.32</sub>WO<sub>3</sub> particles exhibiting high thermal insulation and transparency were synthesized via a cost-effective solvothermal method using sodium tungstate dihydrate and cesium chloride. Crucially, oleic acid was employed as a surfactant to guide the anisotropic growth of the particles, resulting in rod-shaped morphologies with diameters of 100–365&#xa0;nm and lengths of 0.8–2.5&#xa0;µm. The growth mechanism of oleic acid-mediated Cs<sub>0.32</sub>WO<sub>3</sub> particles was also investigated. Subsequently, Cs<sub>0.32</sub>WO<sub>3</sub>/PU composite coatings were fabricated with varying solid contents. Notably, at a concentration of 5 wt%, the coated glass demonstrated an average visible light transmittance of 70.95% and a near-infrared shielding ratio of 81.77%. This work presents a viable route for fabricating transparent heat-shielding coatings with superior optical properties, offering a practical solution for reducing building energy consumption.</p>

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Oleic acid-mediated synthetic nanoarchitectonics of rod-shaped cesium tungsten bronze for high-performance near-infrared shielding of Cs0.32WO3/PU energy-saving window coatings

  • 期刊论文

  • 发表日期：

    2026年7月1日

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  • Phuc Hoang Tran,
  • Huu Huy Phuc Nguyen,
  • Viet Toan Tran,
  • Thi Minh Nguyet Nguyen,
  • Tuan Anh Luu

摘要

Transparent heat-shielding glass offers a highly effective solution for lowering energy consumption in the construction sector. In this study, rod-like Cs0.32WO3 particles exhibiting high thermal insulation and transparency were synthesized via a cost-effective solvothermal method using sodium tungstate dihydrate and cesium chloride. Crucially, oleic acid was employed as a surfactant to guide the anisotropic growth of the particles, resulting in rod-shaped morphologies with diameters of 100–365 nm and lengths of 0.8–2.5 µm. The growth mechanism of oleic acid-mediated Cs0.32WO3 particles was also investigated. Subsequently, Cs0.32WO3/PU composite coatings were fabricated with varying solid contents. Notably, at a concentration of 5 wt%, the coated glass demonstrated an average visible light transmittance of 70.95% and a near-infrared shielding ratio of 81.77%. This work presents a viable route for fabricating transparent heat-shielding coatings with superior optical properties, offering a practical solution for reducing building energy consumption.