Multi-scale order in amorphous transparent oxide thin films

Aiming Yan, Tao Sun, Konstantin B. Borisenko, D. Bruce Buchholz, Robert P. H. Chang, Angus I. Kirkland, Vinayak P. Dravid

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Nominally diffraction amorphous materials represent a pervasive challenge in establishing classical structure-property relationships. This stems from the difficulty in defining the structure of nominally amorphous materials and experimentally differentiating the short-range (10 Å) and medium-range (10 to 30 Å) order as a function of process parameters which are important due to their influence on physical, chemical, or transport properties. Herein, we report on the determination of short- and medium-range order in nominally amorphous zinc and tin co-substituted indium oxide In 1.4Zn 0.3Sn 0.3O 3 (a-ZITO) thin films grown by pulsed laser deposition. These thin films are being explored as transparent conductors that exhibit changes in transport properties depending on deposition temperature while remaining diffraction amorphous. Reduced density function (RDF) analysis from electron diffraction accompanied by density functional theory molecular dynamics simulation of a liquid quench suggests ordering at short range. Scanning transmission fluctuation electron microscopy (STFEM) indicates the presence of ordered ZITO regions at medium range. For a-ZITO films grown at different temperatures, RDF analysis showed no significant change in the short range order. However, STFEM revealed notable structural (and symmetry) differences at medium range. The existence of this type of multi-scale local order in amorphous ZITO thin films highlights the importance of a combined approach to unravel the structures of nominally amorphous materials and to understand structure-properties correlations.

Original languageEnglish
Article number054907
JournalJournal of Applied Physics
Volume112
Issue number5
DOIs
Publication statusPublished - Sep 1 2012

Fingerprint

amorphous materials
oxides
electron microscopy
thin films
transport properties
scanning
stems
diffraction
chemical properties
indium oxides
pulsed laser deposition
tin
electron diffraction
conductors
zinc
physical properties
molecular dynamics
density functional theory
temperature
symmetry

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Yan, A., Sun, T., Borisenko, K. B., Buchholz, D. B., Chang, R. P. H., Kirkland, A. I., & Dravid, V. P. (2012). Multi-scale order in amorphous transparent oxide thin films. Journal of Applied Physics, 112(5), [054907]. https://doi.org/10.1063/1.4750025

Multi-scale order in amorphous transparent oxide thin films. / Yan, Aiming; Sun, Tao; Borisenko, Konstantin B.; Buchholz, D. Bruce; Chang, Robert P. H.; Kirkland, Angus I.; Dravid, Vinayak P.

In: Journal of Applied Physics, Vol. 112, No. 5, 054907, 01.09.2012.

Research output: Contribution to journalArticle

Yan, A, Sun, T, Borisenko, KB, Buchholz, DB, Chang, RPH, Kirkland, AI & Dravid, VP 2012, 'Multi-scale order in amorphous transparent oxide thin films', Journal of Applied Physics, vol. 112, no. 5, 054907. https://doi.org/10.1063/1.4750025
Yan A, Sun T, Borisenko KB, Buchholz DB, Chang RPH, Kirkland AI et al. Multi-scale order in amorphous transparent oxide thin films. Journal of Applied Physics. 2012 Sep 1;112(5). 054907. https://doi.org/10.1063/1.4750025
Yan, Aiming ; Sun, Tao ; Borisenko, Konstantin B. ; Buchholz, D. Bruce ; Chang, Robert P. H. ; Kirkland, Angus I. ; Dravid, Vinayak P. / Multi-scale order in amorphous transparent oxide thin films. In: Journal of Applied Physics. 2012 ; Vol. 112, No. 5.
@article{c3933cc67e0e443385be0c1a7436b846,
title = "Multi-scale order in amorphous transparent oxide thin films",
abstract = "Nominally diffraction amorphous materials represent a pervasive challenge in establishing classical structure-property relationships. This stems from the difficulty in defining the structure of nominally amorphous materials and experimentally differentiating the short-range (10 {\AA}) and medium-range (10 to 30 {\AA}) order as a function of process parameters which are important due to their influence on physical, chemical, or transport properties. Herein, we report on the determination of short- and medium-range order in nominally amorphous zinc and tin co-substituted indium oxide In 1.4Zn 0.3Sn 0.3O 3 (a-ZITO) thin films grown by pulsed laser deposition. These thin films are being explored as transparent conductors that exhibit changes in transport properties depending on deposition temperature while remaining diffraction amorphous. Reduced density function (RDF) analysis from electron diffraction accompanied by density functional theory molecular dynamics simulation of a liquid quench suggests ordering at short range. Scanning transmission fluctuation electron microscopy (STFEM) indicates the presence of ordered ZITO regions at medium range. For a-ZITO films grown at different temperatures, RDF analysis showed no significant change in the short range order. However, STFEM revealed notable structural (and symmetry) differences at medium range. The existence of this type of multi-scale local order in amorphous ZITO thin films highlights the importance of a combined approach to unravel the structures of nominally amorphous materials and to understand structure-properties correlations.",
author = "Aiming Yan and Tao Sun and Borisenko, {Konstantin B.} and Buchholz, {D. Bruce} and Chang, {Robert P. H.} and Kirkland, {Angus I.} and Dravid, {Vinayak P.}",
year = "2012",
month = "9",
day = "1",
doi = "10.1063/1.4750025",
language = "English",
volume = "112",
journal = "Journal of Applied Physics",
issn = "0021-8979",
publisher = "American Institute of Physics Publising LLC",
number = "5",

}

TY - JOUR

T1 - Multi-scale order in amorphous transparent oxide thin films

AU - Yan, Aiming

AU - Sun, Tao

AU - Borisenko, Konstantin B.

AU - Buchholz, D. Bruce

AU - Chang, Robert P. H.

AU - Kirkland, Angus I.

AU - Dravid, Vinayak P.

PY - 2012/9/1

Y1 - 2012/9/1

N2 - Nominally diffraction amorphous materials represent a pervasive challenge in establishing classical structure-property relationships. This stems from the difficulty in defining the structure of nominally amorphous materials and experimentally differentiating the short-range (10 Å) and medium-range (10 to 30 Å) order as a function of process parameters which are important due to their influence on physical, chemical, or transport properties. Herein, we report on the determination of short- and medium-range order in nominally amorphous zinc and tin co-substituted indium oxide In 1.4Zn 0.3Sn 0.3O 3 (a-ZITO) thin films grown by pulsed laser deposition. These thin films are being explored as transparent conductors that exhibit changes in transport properties depending on deposition temperature while remaining diffraction amorphous. Reduced density function (RDF) analysis from electron diffraction accompanied by density functional theory molecular dynamics simulation of a liquid quench suggests ordering at short range. Scanning transmission fluctuation electron microscopy (STFEM) indicates the presence of ordered ZITO regions at medium range. For a-ZITO films grown at different temperatures, RDF analysis showed no significant change in the short range order. However, STFEM revealed notable structural (and symmetry) differences at medium range. The existence of this type of multi-scale local order in amorphous ZITO thin films highlights the importance of a combined approach to unravel the structures of nominally amorphous materials and to understand structure-properties correlations.

AB - Nominally diffraction amorphous materials represent a pervasive challenge in establishing classical structure-property relationships. This stems from the difficulty in defining the structure of nominally amorphous materials and experimentally differentiating the short-range (10 Å) and medium-range (10 to 30 Å) order as a function of process parameters which are important due to their influence on physical, chemical, or transport properties. Herein, we report on the determination of short- and medium-range order in nominally amorphous zinc and tin co-substituted indium oxide In 1.4Zn 0.3Sn 0.3O 3 (a-ZITO) thin films grown by pulsed laser deposition. These thin films are being explored as transparent conductors that exhibit changes in transport properties depending on deposition temperature while remaining diffraction amorphous. Reduced density function (RDF) analysis from electron diffraction accompanied by density functional theory molecular dynamics simulation of a liquid quench suggests ordering at short range. Scanning transmission fluctuation electron microscopy (STFEM) indicates the presence of ordered ZITO regions at medium range. For a-ZITO films grown at different temperatures, RDF analysis showed no significant change in the short range order. However, STFEM revealed notable structural (and symmetry) differences at medium range. The existence of this type of multi-scale local order in amorphous ZITO thin films highlights the importance of a combined approach to unravel the structures of nominally amorphous materials and to understand structure-properties correlations.

UR - http://www.scopus.com/inward/record.url?scp=84866414935&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84866414935&partnerID=8YFLogxK

U2 - 10.1063/1.4750025

DO - 10.1063/1.4750025

M3 - Article

VL - 112

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 5

M1 - 054907

ER -