Controlled optical properties via chemical composition tuning in molybdenum-incorporated β-Ga2O3 nanocrystalline films

Battu, Anil K.; Manandhar, S.; Shutthanandan, V.; Ramana, C. V.

doi:10.1016/J.CPLETT.2017.06.063

Title: Controlled optical properties via chemical composition tuning in molybdenum-incorporated β-Ga₂O₃ nanocrystalline films

Abstract

Here, an approach is presented to design refractory-metal incorporated Ga₂O₃-based materials with controlled structural and optical properties. The molybdenum (Mo)-content in Ga₂O₃ was varied from 0 to 11 at% in the sputter-deposited Ga-Mo-O films. Molybdenum was found to significantly affect the structure and optical properties. While low Mo-content (≤4 at%) results in the formation of single-phase (β-Ga₂O₃), higher Mo-content results in amorphization. Chemically-induced band gap variability (E_g ~ 1 eV) coupled with structure-modification indicates the electronic-structure changes in Ga-Mo-O. The linear relationship between chemical-composition and optical properties suggests that tailoring the optical-quality and performance of Ga-Mo-O films is possible by tuning the Mo-content.

Authors:

Battu, Anil K. ^[1]; Manandhar, S. ^[2]; Shutthanandan, V. ^[3]; Ramana, C. V. ^[1]

Univ. of Texas, El Paso, TX (United States). Dept. of Mechanical Engineering
Univ. of Texas, El Paso, TX (United States). Dept. of Mechanical Engineering; Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)

Publication Date:: Sat Jul 01 00:00:00 EDT 2017

Research Org.:: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Sponsoring Org.:: National Science Foundation (NSF); USDOE Office of Science (SC), Biological and Environmental Research (BER)

OSTI Identifier:: 1368411

Alternate Identifier(s):: OSTI ID: 1576817

Grant/Contract Number:: AC0576RL01830; ECCS-1509653

Resource Type:: Accepted Manuscript

Journal Name:: Chemical Physics Letters

Additional Journal Information:: Journal Volume: 684; Journal Issue: C; Journal ID: ISSN 0009-2614

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Gallium oxide; Mo doping; Optical properties

Citation Formats


                    Battu, Anil K., Manandhar, S., Shutthanandan, V., and Ramana, C. V. Controlled optical properties via chemical composition tuning in molybdenum-incorporated β-Ga2O3 nanocrystalline films.  United States: N. p., 2017. 
Web.  doi:10.1016/J.CPLETT.2017.06.063.

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                    Battu, Anil K., Manandhar, S., Shutthanandan, V., & Ramana, C. V. Controlled optical properties via chemical composition tuning in molybdenum-incorporated β-Ga2O3 nanocrystalline films.  United States.  https://doi.org/10.1016/J.CPLETT.2017.06.063

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                    Battu, Anil K., Manandhar, S., Shutthanandan, V., and Ramana, C. V. Sat .  
"Controlled optical properties via chemical composition tuning in molybdenum-incorporated β-Ga2O3 nanocrystalline films".  United States.  https://doi.org/10.1016/J.CPLETT.2017.06.063.  https://www.osti.gov/servlets/purl/1368411.

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@article{osti_1368411,

  title        = {Controlled optical properties via chemical composition tuning in molybdenum-incorporated β-Ga2O3 nanocrystalline films},

  author       = {Battu, Anil K. and Manandhar, S. and Shutthanandan, V. and Ramana, C. V.},

  abstractNote = {Here, an approach is presented to design refractory-metal incorporated Ga2O3-based materials with controlled structural and optical properties. The molybdenum (Mo)-content in Ga2O3 was varied from 0 to 11 at% in the sputter-deposited Ga-Mo-O films. Molybdenum was found to significantly affect the structure and optical properties. While low Mo-content (≤4 at%) results in the formation of single-phase (β-Ga2O3), higher Mo-content results in amorphization. Chemically-induced band gap variability (Eg ~ 1 eV) coupled with structure-modification indicates the electronic-structure changes in Ga-Mo-O. The linear relationship between chemical-composition and optical properties suggests that tailoring the optical-quality and performance of Ga-Mo-O films is possible by tuning the Mo-content.},

  doi          = {10.1016/J.CPLETT.2017.06.063},

  journal      = {Chemical Physics Letters},

  number       = C,

  volume       = 684,

  place        = {United States},

  year         = {Sat Jul 01 00:00:00 EDT 2017},

  month        = {Sat Jul 01 00:00:00 EDT 2017}

}

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Works referencing / citing this record:

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Nano-structured phases of gallium oxide (GaOOH, α-Ga2O3, β-Ga2O3, γ-Ga2O3, δ-Ga2O3, and ε-Ga2O3): fabrication, structural, and electronic structure investigations
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Battu, Anil K.; Ramana, Chintalapalle V.
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Title: Controlled optical properties via chemical composition tuning in molybdenum-incorporated β-Ga2O3 nanocrystalline films

Abstract

Citation Formats

Direct, functional relationship between structural and optical properties in titanium-incorporated gallium oxide nanocrystalline thin films journal, February 2017

?-Gallium Oxide as Oxygen Gas Sensors at a High Temperature journal, September 2007

Deep-ultraviolet transparent conductive β-Ga2O3 thin films journal, December 2000

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Room temperature ferromagnetism in Mn-doped γ-Ga2O3 with spinel structure journal, October 2006

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Crystalline gallium oxide nanowires: intensive blue light emitters journal, September 2000

Synthesis of beta gallium oxide nano-ribbons from gallium arsenide by plasma immersion ion implantation and rapid thermal annealing journal, December 2003

Optical and structural properties of Cu-doped β-Ga2O3 films journal, June 2011

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Influence of Sn and Cr Doping on Morphology and Luminescence of Thermally Grown Ga 2 O 3 Nanowires journal, January 2013

Tungsten-incorporation induced red-shift in the bandgap of gallium oxide thin films journal, May 2013

High-voltage field effect transistors with wide-bandgap β -Ga 2 O 3 nanomembranes journal, May 2014

Effect of doped zinc species on the photocatalytic activity of gallium oxide for hydrogen production journal, January 2012

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Electronic structure and charge transport properties of amorphous Ta2O5 films journal, May 2008

Low-Temperature Chemical Synthesis and Microstructure Analysis of GeO 2 Crystals with α-Quartz Structure journal, February 2009

X-ray Photoelectron Spectroscopy Depth Profiling of La 2 O 3 /Si Thin Films Deposited by Reactive Magnetron Sputtering journal, October 2011

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Donor structure and electric transport mechanism in β − Ga 2 O 3 journal, October 2003

Oxygen vacancies and donor impurities in β-Ga2O3 journal, October 2010

Solution-Processed MoO 3 Thin Films As a Hole-Injection Layer for Organic Solar Cells journal, August 2011

p -MoO 3 Nanostructures/ n -TiO 2 Nanofiber Heterojunctions: Controlled Fabrication and Enhanced Photocatalytic Properties journal, June 2014

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Crystal Structure of β‐Ga 2 O 3 journal, September 1960

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β-MoO3 produced from a novel freeze drying route journal, July 1991

Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides journal, September 1976

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Title: Controlled optical properties via chemical composition tuning in molybdenum-incorporated β-Ga₂O₃ nanocrystalline films

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journal, December 2000

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journal, December 2003

Optical and structural properties of Cu-doped β-Ga2O3 films
journal, June 2011

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journal, January 2013

Tungsten-incorporation induced red-shift in the bandgap of gallium oxide thin films
journal, May 2013

High-voltage field effect transistors with wide-bandgap β -Ga ₂ O ₃ nanomembranes
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journal, January 2012

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journal, January 2015

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journal, January 2016

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journal, January 2014

Structure, Morphology, and Optical Properties of Amorphous and Nanocrystalline Gallium Oxide Thin Films
journal, February 2013

Effects of Zn2+ and Pb2+ dopants on the activity of Ga2O3-based photocatalysts for water splitting
journal, January 2013

Effect of Metal Ion Addition in a Ni Supported Ga2O3 Photocatalyst on the Photocatalytic Overall Splitting of H2O
journal, June 2008

Liquid Metal/Metal Oxide Frameworks with Incorporated Ga ₂ O ₃ for Photocatalysis
journal, January 2015

Formation of indium–tin oxide ohmic contacts for β-Ga ₂ O ₃
journal, October 2016

Growth and surface characterization of sputter-deposited molybdenum oxide thin films
journal, April 2007

Electronic structure and charge transport properties of amorphous Ta2O5 films
journal, May 2008

Low-Temperature Chemical Synthesis and Microstructure Analysis of GeO ₂ Crystals with α-Quartz Structure
journal, February 2009

X-ray Photoelectron Spectroscopy Depth Profiling of La ₂ O ₃ /Si Thin Films Deposited by Reactive Magnetron Sputtering
journal, October 2011

Structure, morphology and optical properties of nanocrystalline yttrium oxide (Y2O3) thin films
journal, March 2012

Donor structure and electric transport mechanism in $β - {Ga}_{2} O_{3}$
journal, October 2003

Oxygen vacancies and donor impurities in β-Ga2O3
journal, October 2010

Solution-Processed MoO ₃ Thin Films As a Hole-Injection Layer for Organic Solar Cells
journal, August 2011

p -MoO ₃ Nanostructures/ n -TiO ₂ Nanofiber Heterojunctions: Controlled Fabrication and Enhanced Photocatalytic Properties
journal, June 2014

Single-crystalline MoO3 nanoplates: topochemical synthesis and enhanced ethanol-sensing performance
journal, January 2011

Enhanced ethanol sensing response from nanostructured MoO3:ZnO thin films and their mechanism of sensing
journal, January 2013

Chemical and electrochemical properties of molybdenum oxide thin films prepared by reactive pulsed-laser assisted deposition
journal, September 2006

Crystal Structure of β‐Ga ₂ O ₃
journal, September 1960

Optical properties of gallium oxide thin films
journal, July 2002

Sublimation growth and vibrational microspectrometry of α-MoO3 single crystals
journal, March 2011

The growth and single crystal structure of a high pressure phase of molybdenum trioxide: MoO3-II
journal, March 1991

β-MoO3 produced from a novel freeze drying route
journal, July 1991

Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides
journal, September 1976

Effect of Ti doping on the crystallography, phase, surface/interface structure and optical band gap of Ga2O3 thin films
journal, May 2019

Nano-structured phases of gallium oxide (GaOOH, α-Ga2O3, β-Ga2O3, γ-Ga2O3, δ-Ga2O3, and ε-Ga2O3): fabrication, structural, and electronic structure investigations
journal, February 2020

Mechanical Properties of Nanocrystalline and Amorphous Gallium Oxide Thin Films
journal, August 2018