Near Infrared Shielding Properties of Quaternary Tungsten Bronze Nanoparticle Na0.11Cs0.22WO3

Reduced tungsten bronze nanoparticles of ternary and quaternary compounds were prepared by adding sodium and cesium to crystal structures of tungsten trioxides (NaxCs0.33-xWO3, x = 0, 0.11) while maintaining the overall alkali metal fraction at 0.33, in an attempt to control near infrared (NIR) shielding property in the particular wavelength range of 780 to 1200 nm. The structure and composition analysis of the quaternary compound, Na0.11Cs0.22WO3, revealed that 93.1% of the hexagonal phase was formed, suggesting that both alkali metals were mainly inserted in hexagonal channel. The NIR shielding property for Na0.11Cs0.22WO3 was remarkable, as this material demonstrated efficient transmittance of visible light up to 780 nm and enhancement in NIR shielding because of the blue-shifted absorption maximum in comparison to Cs0.33WO3.

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Cite this article

[IEEE Style]

K. Moon, J. Cho, Y. Lee, P. J. Yoo, C. W. Bark, J. Park, "Near Infrared Shielding Properties of Quaternary Tungsten Bronze Nanoparticle Na_0.11Cs_0.22WO₃," Bulletin of the Korean Chemical Society, vol. 34, no. 3, pp. 731-734, 2013. DOI: 10.5012/bkcs.2013.34.3.731.

[ACM Style]

Kyunghwan Moon, Jin-Ju Cho, Ye-Bin Lee, Pil J. Yoo, Chung Wung Bark, and Juhyun Park. 2013. Near Infrared Shielding Properties of Quaternary Tungsten Bronze Nanoparticle Na_0.11Cs_0.22WO₃. Bulletin of the Korean Chemical Society, 34, 3, (2013), 731-734. DOI: 10.5012/bkcs.2013.34.3.731.

Near Infrared Shielding Properties of Quaternary Tungsten Bronze Nanoparticle Na_0.11Cs_0.22WO₃

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