Bioinspired Structural Colors Fabricated with ZnO Quasi-Ordered Nanostructures

ACS Applied Materials & Interfaces
Geon Hwee KimGeunbae Lim

Abstract

Despite their advantages in different applications, structural colors are difficult to use because of the inability to change a structural color once it is implemented, as well as their high fabrication costs; implementing multiple structural colors simultaneously on one substrate is a challenge as well. In this study, structural colors were reproduced using quasi-ordered scattering to mitigate these issues. To this end, a ZnO flower-like structure having unimodal distributions of size and spacing was fabricated by ZnO hydrothermal growth. This fabricated nanostructure has a thickness on the order of 103 nm and a diameter on the order of 102 nm. The thickness and diameter increase in proportion with the synthesis time (thickness growth rate = 43 nm/min, diameter growth rate = 20 nm/min). The shape of the nanostructure can be easily tuned by simply adjusting the synthesis and etching times. This method combines the advantages of top-down and bottom-up synthetic approaches in that the structural color can be continuously modified once fabricated.

References

Jul 21, 2006·The Journal of Physical Chemistry. B·Youngjo Tak, Kijung Yong
Oct 30, 2008·Journal of the Royal Society, Interface·Ainsley E SeagoTom D Schultz
Jan 10, 2014·Chemical Communications : Chem Comm·Rafiq AhmadYoon-Bong Hahn
Jun 2, 2016·ACS Applied Materials & Interfaces·Ha Nee UmhJongheop Yi
Jan 13, 2009·Science and Technology of Advanced Materials·Sunandan Baruah, Joydeep Dutta

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Citations

Jul 3, 2019·Advanced Materials·Yuanwen ZhangZiqi Sun
Sep 27, 2019·Nature Communications·Yejing LiuJoel K W Yang
Jul 11, 2018·Nanoscale Research Letters·Geon Hwee KimGeunbae Lim
Nov 15, 2020·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Fei ChenHidehiko Sano
Mar 3, 2020·ACS Omega·Suhyeon KimGeunbae Lim

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