Growth of vanadium dioxide thin films on hexagonal boron nitride flakes as transferrable substrates

Scientific Reports
Shingo GenchiHidekazu Tanaka

Abstract

Vanadium dioxide (VO2) is an archetypal metal-insulator transition (MIT) material, which has been known for decades to show an orders-of-magnitude change in resistivity across the critical temperature of approximately 340 K. In recent years, VO2 has attracted increasing interest for electronic and photonic applications, along with advancement in thin film growth techniques. Previously, thin films of VO2 were commonly grown on rigid substrates such as crystalline oxides and bulk semiconductors, but the use of transferrable materials as the growth substrates can provide versatility in applications, including transparent and flexible devices. Here, we employ single-crystalline hexagonal boron nitride (hBN), which is an insulating layered material, as a substrate for VO2 thin film growth. VO2 thin films in the polycrystalline form are grown onto hBN thin flakes exfoliated onto silicon (Si) with a thermal oxide, with grains reaching up-to a micrometer in size. The VO2 grains on hBN are orientated preferentially with the (110) surface of the rutile structure, which is the most energetically favorable. The VO2 film on hBN shows a MIT at approximately 340 K, across which the resistivity changes by nearly three orders of magnitude, comp...Continue Reading

References

Sep 4, 2008·Physical Review Letters·Amos SharoniIvan K Schuller
Mar 27, 2010·Science·John A RogersYonggang Huang
Aug 24, 2010·Nature Nanotechnology·C R DeanJ Hone
Mar 3, 2012·Nano Letters·Liam BritnellKostya S Novoselov
Aug 8, 2012·Nano Letters·Andrei G F GarciaDavid Goldhaber-Gordon
Oct 23, 2012·The Journal of Chemical Physics·Thomas A Mellan, Ricardo Grau-Crespo
Feb 28, 2013·Nanoscale·Hyeongkeun KimWoo Seok Yang
Jun 14, 2013·ACS Nano·Hyeongkeun KimWoo Seok Yang
Oct 10, 2015·Nature Communications·Hai-Tian ZhangRoman Engel-Herbert
Oct 24, 2018·Nature Communications·T G FollandJ D Caldwell

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Methods Mentioned

BETA
atomic force microscopy
transmission electron microscopy
X-ray
AFM
Raman spectroscopy

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