Electronically conducting metal oxide nanoparticles and films for optical sensing applications

Ohodnicki, Paul R.; Wang, Congjun; Andio, Mark A

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Title: Electronically conducting metal oxide nanoparticles and films for optical sensing applications

Abstract

The disclosure relates to a method of detecting a change in a chemical composition by contacting a conducting oxide material with a monitored stream, illuminating the conducting oxide material with incident light, collecting exiting light, monitoring an optical signal based on a comparison of the incident light and the exiting light, and detecting a shift in the optical signal. The conducting metal oxide has a carrier concentration of at least 10.sup.17/cm.sup.3, a bandgap of at least 2 eV, and an electronic conductivity of at least 10.sup.-1 S/cm, where parameters are specified at the gas stream temperature. The optical response of the conducting oxide materials is proposed to result from the high carrier concentration and electronic conductivity of the conducting metal oxide, and the resulting impact of changing gas atmospheres on that relatively high carrier concentration and electronic conductivity. These changes in effective carrier densities and electronic conductivity of conducting metal oxide films and nanoparticles are postulated to be responsible for the change in measured optical absorption associated with free carriers. Exemplary conducting metal oxides include but are not limited to Al-doped ZnO, Sn-doped In.sub.2O.sub.3, Nb-doped TiO.sub.2, and F-doped SnO.sub.2.

Inventors:: Ohodnicki, Jr., Paul R.; Wang, Congjun; Andio, Mark A

Issue Date:: 2014-09-16

Research Org.:: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1159514

Patent Number(s):: 8836945

Application Number:: 14/135,691

Assignee:: U.S. Department of Energy (Washington, DC)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

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G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N21/783 - {for analysing gases}
G01N2201/0826 - Fibre array at source, distributing

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Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats


                    Ohodnicki, Jr., Paul R., Wang, Congjun, and Andio, Mark A. Electronically conducting metal oxide nanoparticles and films for optical sensing applications.  United States: N. p., 2014. 
        Web.

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                    Ohodnicki, Jr., Paul R., Wang, Congjun, & Andio, Mark A. Electronically conducting metal oxide nanoparticles and films for optical sensing applications.  United States.

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                    Ohodnicki, Jr., Paul R., Wang, Congjun, and Andio, Mark A. Tue .  
        "Electronically conducting metal oxide nanoparticles and films for optical sensing applications".  United States.  https://www.osti.gov/servlets/purl/1159514.

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@article{osti_1159514,

  title        = {Electronically conducting metal oxide nanoparticles and films for optical sensing applications},

  author       = {Ohodnicki, Jr., Paul R. and Wang, Congjun and Andio, Mark A},

  abstractNote = {The disclosure relates to a method of detecting a change in a chemical composition by contacting a conducting oxide material with a monitored stream, illuminating the conducting oxide material with incident light, collecting exiting light, monitoring an optical signal based on a comparison of the incident light and the exiting light, and detecting a shift in the optical signal. The conducting metal oxide has a carrier concentration of at least 10.sup.17/cm.sup.3, a bandgap of at least 2 eV, and an electronic conductivity of at least 10.sup.-1 S/cm, where parameters are specified at the gas stream temperature. The optical response of the conducting oxide materials is proposed to result from the high carrier concentration and electronic conductivity of the conducting metal oxide, and the resulting impact of changing gas atmospheres on that relatively high carrier concentration and electronic conductivity. These changes in effective carrier densities and electronic conductivity of conducting metal oxide films and nanoparticles are postulated to be responsible for the change in measured optical absorption associated with free carriers. Exemplary conducting metal oxides include but are not limited to Al-doped ZnO, Sn-doped In.sub.2O.sub.3, Nb-doped TiO.sub.2, and F-doped SnO.sub.2.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2014},

  month        = {9}

}

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Similar Records

Title: Electronically conducting metal oxide nanoparticles and films for optical sensing applications

Abstract

Citation Formats

Method for measuring the level of hydrogen sulfide in geothermal steam patent, October 1982

In-situ gas analyzer patent, December 1986

Series cell light extinction monitor patent, October 1990

SO.sub.2 sensor patent, August 1994

Process and device for determining the para content of a hydrogen gas stream patent, December 1996

Automotive hydrocarbon adsorber system patent, August 1999

Method to improve the control of source chemicals delivery by a carrier gas patent, July 2005

Method and apparatus for utilization of partially gasified coal for mercury removal patent, July 2007

Optical methods and systems for detecting a constituent in a gas containing oxygen in harsh environments patent, January 2011

High temperature gas desulfurization sorbents patent, November 2012

Nanocomposite thin films for high temperature optical gas sensing of hydrogen patent, April 2013

Hydrogen sulphide detection method and apparatus patent-application, July 2003

Method and system for detecting chemical substance patent-application, June 2004

Concentration cell type hydrogen sensor and method for preparing solid electrolyte capable od conducting proton patent-application, June 2004

Transition metal-doped oxide semiconductor exhibiting room-temperature ferromagnetism patent-application, March 2006

Optical switches and routers and optical filters patent-application, August 2006

Hand-held gas detector and method of gas detection patent-application, October 2007

Optical methods and systems for detecting a constituent in a gas containing oxygen in harsh environments patent-application, August 2009

Gas sensor patent-application, September 2009

Device and Methods of Detection of Airborne Agents patent-application, August 2010

Alkyne-Assisted Nanostructure Growth patent-application, February 2011

Gold Carbon Monoxide Oxidation Catalysts with Etched Substrate patent-application, June 2011

Recent advances in optochemical sensors for the detection of H2, O2, O3, CO, CO2 and H2O in air journal, November 2006

Metal oxides for solid-state gas sensors: What determines our choice? journal, April 2007

Optical gas sensitivity of a metaloxide multilayer system with gold-nano-clusters journal, October 2007

CO optical sensing properties of nanocrystalline ZnO–Au films: Effect of doping with transition metal ions journal, January 2012

Enhanced optical and electrical gas sensing response of sol–gel based NiO–Au and ZnO–Au nanostructured thin films journal, March 2012

Combined effects of small gold particles on the optical gas sensing by transition metal oxide films journal, April 1997

Investigation on nanocrystalline copper-doped zirconia thin films for optical sensing of carbon monoxide at high temperature journal, December 2011

Plasmonic transparent conducting metal oxide nanoparticles and nanoparticle films for optical sensing applications journal, July 2013

Solvothermal synthesis and properties control of doped ZnO nanoparticles journal, January 2009

Method for measuring the level of hydrogen sulfide in geothermal steam
patent, October 1982

In-situ gas analyzer
patent, December 1986

Series cell light extinction monitor
patent, October 1990

SO.sub.2 sensor
patent, August 1994

Process and device for determining the para content of a hydrogen gas stream
patent, December 1996

Automotive hydrocarbon adsorber system
patent, August 1999

Method to improve the control of source chemicals delivery by a carrier gas
patent, July 2005

Method and apparatus for utilization of partially gasified coal for mercury removal
patent, July 2007

Optical methods and systems for detecting a constituent in a gas containing oxygen in harsh environments
patent, January 2011

High temperature gas desulfurization sorbents
patent, November 2012

Nanocomposite thin films for high temperature optical gas sensing of hydrogen
patent, April 2013

Hydrogen sulphide detection method and apparatus
patent-application, July 2003

Method and system for detecting chemical substance
patent-application, June 2004

Concentration cell type hydrogen sensor and method for preparing solid electrolyte capable od conducting proton
patent-application, June 2004

Transition metal-doped oxide semiconductor exhibiting room-temperature ferromagnetism
patent-application, March 2006

Optical switches and routers and optical filters
patent-application, August 2006

Hand-held gas detector and method of gas detection
patent-application, October 2007

Optical methods and systems for detecting a constituent in a gas containing oxygen in harsh environments
patent-application, August 2009

Gas sensor
patent-application, September 2009

Device and Methods of Detection of Airborne Agents
patent-application, August 2010

Alkyne-Assisted Nanostructure Growth
patent-application, February 2011

Gold Carbon Monoxide Oxidation Catalysts with Etched Substrate
patent-application, June 2011

Recent advances in optochemical sensors for the detection of H₂, O₂, O₃, CO, CO₂ and H₂O in air
journal, November 2006

Metal oxides for solid-state gas sensors: What determines our choice?
journal, April 2007

Optical gas sensitivity of a metaloxide multilayer system with gold-nano-clusters
journal, October 2007

CO optical sensing properties of nanocrystalline ZnO–Au films: Effect of doping with transition metal ions
journal, January 2012

Enhanced optical and electrical gas sensing response of sol–gel based NiO–Au and ZnO–Au nanostructured thin films
journal, March 2012

Combined effects of small gold particles on the optical gas sensing by transition metal oxide films
journal, April 1997

Investigation on nanocrystalline copper-doped zirconia thin films for optical sensing of carbon monoxide at high temperature
journal, December 2011

Plasmonic transparent conducting metal oxide nanoparticles and nanoparticle films for optical sensing applications
journal, July 2013

Solvothermal synthesis and properties control of doped ZnO nanoparticles
journal, January 2009