Issue 71, 2015

The optical properties of low infrared transmittance WO3−x nanocrystal thin films prepared by DC magnetron sputtering under different oxygen ratios

Abstract

Low infrared transmittance WO3−x (0 < x < 1) ratios, as transparent conductors with high transmittance in the visible range and UV blocking. The infrared shielding properties could be adjusted by tuning the oxygen ratio during the sputtering process. The intrinsic defects, such as oxygen vacancy (Image ID:c5ra09518b-t1.gif) and special atom (W5+), determine the main optical properties by localized states originated from the electron caused by interband transition and the surface dipole of the plasmon oscillation of the nanoparticle with optical scattering. The structures, morphology, defects and chemical states were investigated. With respect to oxygen ratio, it has little effect on the structure and morphology, yet the optical shielding performance, defects and chemical states can be controlled linearly by considering the oxygen ratio during the sputtering process. The WO3−x thin films have great potential for application in infrared shielding and energy conservation.

Graphical abstract: The optical properties of low infrared transmittance WO3−x nanocrystal thin films prepared by DC magnetron sputtering under different oxygen ratios

Supplementary files

Article information

Article type
Paper
Submitted
21 May 2015
Accepted
25 Jun 2015
First published
26 Jun 2015

RSC Adv., 2015,5, 57757-57763

Author version available

The optical properties of low infrared transmittance WO3−x nanocrystal thin films prepared by DC magnetron sputtering under different oxygen ratios

Y. Xin, H. Zhou, X. Ni, Y. Pan, X. Zhang, J. Zheng, S. Bao and P. Jin, RSC Adv., 2015, 5, 57757 DOI: 10.1039/C5RA09518B

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