Solution-Based, Template-Assisted Realization of Large-Scale Graphitic ZnO

ACS Nano
Kyle B TomJie Yao

Abstract

With a honeycomb single-atomic-layer structure similar to those of graphene and hexagonal boron nitride (hBN), the graphitic phase of ZnO (gZnO) have been predicted to offer many advantages for engineering, including high-temperature stability in ambient conditions and great potential in heterostructure applications. However, there is little experimental data about this hexagonal phase due to the difficulty of synthesizing large-area gZnO for characterization and applications. In this work, we demonstrate a solution-based approach to realize gZnO nanoflakes with thicknesses down to a monolayer and sizes up to 20 μm. X-ray photoelectron spectroscopy, X-ray absorption near-edge spectroscopy, photoluminescence, atomic force microscopy, and electron microscopy characterizations are conducted on synthesized gZnO samples. Measurements show significant changes to the electronic band structure compared to its bulk phase, including an increase of the band gap to 4.8 eV. The gZnO nanosheets also exhibit excellent stability at temperatures as high as 800 °C in ambient environment. This wide band gap layered material provides us with a platform for harsh environment electronic devices, deep ultraviolet optical applications, and a practical...Continue Reading

References

Dec 15, 1994·Physical Review. B, Condensed Matter·P E Blöchl
Apr 15, 1990·Physical Review. B, Condensed Matter·D Vanderbilt
Jan 1, 1993·Physical Review. B, Condensed Matter·G Kresse, J Hafner
Oct 28, 1996·Physical Review Letters·J P PerdewM Ernzerhof
Nov 20, 2001·Nature·M Grätzel
Apr 12, 2006·Physical Review Letters·Colin L FreemanJohn H Harding
Jun 29, 2006·Physical Review Letters·David Prendergast, Giulia Galli
Apr 13, 2007·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·C Klingshirn
Sep 30, 2009·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Paolo GiannozziRenata M Wentzcovitch
Mar 8, 2013·ACS Nano·Sheneve Z ButlerJoshua E Goldberger
Apr 6, 2013·The Journal of Chemical Physics·Wei HuJinlong Yang
Jul 28, 2013·Nature·A K Geim, I V Grigorieva
Mar 8, 2018·Nature·Yuan CaoPablo Jarillo-Herrero
Mar 15, 2018·Science Advances·Vidya KochatPulickel M Ajayan
May 8, 2018·Nature Nanotechnology·Aravind Puthirath BalanPulickel M Ajayan

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Citations

Nov 4, 2020·The Journal of Chemical Physics·Nanshu LiuJijun Zhao

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