Optical properties of vanadium dioxide grown on sapphire substrate with different orientations

M. Nazari; Y. Zhao; Y. Zhu; V. V. Kuryatkov; Z. Y. Fan; A. A. Bernussi; M. Holtz

Optical properties of vanadium dioxide grown on sapphire substrate with different orientations

M. Nazari, Y. Zhao, Y. Zhu, V. V. Kuryatkov, Z. Y. Fan, A. A. Bernussi, M. Holtz

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

We report optical, structural, and electrical properties of VO₂ on sapphire substrates with c-, m- and r- orientations with identical growth conditions. XRD data show that VO₂ orientation depends on the substrate orientation. Based on temperature-dependent resistivity measurements, metal-insulator phase transition (MIT) temperature, T_MIT, depends on the VO₂ orientation due, primarily, to stress. The energy gap E _g is observed to gradually red shift as temperature increases before collapsing to E_g ≈ O eV at temperatures below T_MIT.

Original language	English
Title of host publication	TMS 2013 - 142nd Annual Meeting and Exhibition, Supplemental Proceedings
Subtitle of host publication	Linking Science and Technology for Global Solutions
Pages	933-940
Number of pages	8
State	Published - 2013
Event	142nd Annual Meeting and Exhibition: Linking Science and Technology for Global Solutions, TMS 2013 - San Antonio, TX, United States Duration: Mar 3 2013 → Mar 7 2013

Publication series

Name	TMS Annual Meeting

Conference

Conference	142nd Annual Meeting and Exhibition: Linking Science and Technology for Global Solutions, TMS 2013
Country/Territory	United States
City	San Antonio, TX
Period	03/3/13 → 03/7/13

Keywords

Energy gap
Metal-insulator phase transition (MIT)
Refractive index
Spectroscopic ellipsometry

Cite this

@inproceedings{04668df98dce495fb7fc5bbc88c758e6,

title = "Optical properties of vanadium dioxide grown on sapphire substrate with different orientations",

abstract = "We report optical, structural, and electrical properties of VO2 on sapphire substrates with c-, m- and r- orientations with identical growth conditions. XRD data show that VO2 orientation depends on the substrate orientation. Based on temperature-dependent resistivity measurements, metal-insulator phase transition (MIT) temperature, TMIT, depends on the VO2 orientation due, primarily, to stress. The energy gap E g is observed to gradually red shift as temperature increases before collapsing to Eg ≈ O eV at temperatures below TMIT.",

keywords = "Energy gap, Metal-insulator phase transition (MIT), Refractive index, Spectroscopic ellipsometry",

author = "M. Nazari and Y. Zhao and Y. Zhu and Kuryatkov, {V. V.} and Fan, {Z. Y.} and Bernussi, {A. A.} and M. Holtz",

year = "2013",

language = "English",

isbn = "9781118605813",

series = "TMS Annual Meeting",

pages = "933--940",

booktitle = "TMS 2013 - 142nd Annual Meeting and Exhibition, Supplemental Proceedings",

note = "142nd Annual Meeting and Exhibition: Linking Science and Technology for Global Solutions, TMS 2013 ; Conference date: 03-03-2013 Through 07-03-2013",

}

Nazari, M, Zhao, Y, Zhu, Y, Kuryatkov, VV, Fan, ZY, Bernussi, AA & Holtz, M 2013, Optical properties of vanadium dioxide grown on sapphire substrate with different orientations. in TMS 2013 - 142nd Annual Meeting and Exhibition, Supplemental Proceedings: Linking Science and Technology for Global Solutions. TMS Annual Meeting, pp. 933-940, 142nd Annual Meeting and Exhibition: Linking Science and Technology for Global Solutions, TMS 2013, San Antonio, TX, United States, 03/3/13.

Optical properties of vanadium dioxide grown on sapphire substrate with different orientations. / Nazari, M.; Zhao, Y.; Zhu, Y. et al.
TMS 2013 - 142nd Annual Meeting and Exhibition, Supplemental Proceedings: Linking Science and Technology for Global Solutions. 2013. p. 933-940 (TMS Annual Meeting).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Optical properties of vanadium dioxide grown on sapphire substrate with different orientations

AU - Nazari, M.

AU - Zhao, Y.

AU - Zhu, Y.

AU - Kuryatkov, V. V.

AU - Fan, Z. Y.

AU - Bernussi, A. A.

AU - Holtz, M.

PY - 2013

Y1 - 2013

N2 - We report optical, structural, and electrical properties of VO2 on sapphire substrates with c-, m- and r- orientations with identical growth conditions. XRD data show that VO2 orientation depends on the substrate orientation. Based on temperature-dependent resistivity measurements, metal-insulator phase transition (MIT) temperature, TMIT, depends on the VO2 orientation due, primarily, to stress. The energy gap E g is observed to gradually red shift as temperature increases before collapsing to Eg ≈ O eV at temperatures below TMIT.

AB - We report optical, structural, and electrical properties of VO2 on sapphire substrates with c-, m- and r- orientations with identical growth conditions. XRD data show that VO2 orientation depends on the substrate orientation. Based on temperature-dependent resistivity measurements, metal-insulator phase transition (MIT) temperature, TMIT, depends on the VO2 orientation due, primarily, to stress. The energy gap E g is observed to gradually red shift as temperature increases before collapsing to Eg ≈ O eV at temperatures below TMIT.

KW - Energy gap

KW - Metal-insulator phase transition (MIT)

KW - Refractive index

KW - Spectroscopic ellipsometry

UR - http://www.scopus.com/inward/record.url?scp=84876447008&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84876447008

SN - 9781118605813

T3 - TMS Annual Meeting

SP - 933

EP - 940

BT - TMS 2013 - 142nd Annual Meeting and Exhibition, Supplemental Proceedings

T2 - 142nd Annual Meeting and Exhibition: Linking Science and Technology for Global Solutions, TMS 2013

Y2 - 3 March 2013 through 7 March 2013

ER -

Optical properties of vanadium dioxide grown on sapphire substrate with different orientations

Abstract

Publication series

Conference

Keywords

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