Abstract
Cobalt doped zinc oxide nanopowders were prepared via solid-state reaction. The influences of calcining temperatures on crystal structure, morphology, emissivity and color change of the Zn1-xCoxO nanopowders were studies detailedly. The results indicate that the substitute for Zn2+ by Co2+ in hexagonal wurtzite ZnO usefully sintering temperatures are 900–1200 °C. Moreover, the crystallinity, the oxygen vacancy content and the amount of Co2+ substituted Zn2+ in the Zn1-xCoxO nanopowders are increasing with the heating temperature improving. All the samples show reversible thermochromism, which can reversible color change from green to yellow by rising test temperature from 25 to 800 °C. Meanwhile, the largest emissivity change is 0.321 as the test temperature changes between 25 and 800 °C in the sample heated at 1100 °C. The Zn1-xCoxO has great potential applications for smart adaptive camouflage in visible-infrared region.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
