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Title: Combined Plasmonic Au-nanoparticle and Conducting Metal Oxide High-temperature Optical Sensing with LSTO

Journal Article · · Nanoscale (Online)
DOI:https://doi.org/10.1039/D0NR03306E· OSTI ID:1768716

<span style="color: rgba(0, 0, 0, 0.79); font-family: &quot;Source Sans Pro&quot;, source-sans-pro, museo_sans300, museo-sans, Arial, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);">Fiber optic sensor technology offers several advantages for harsh-environment applications. However, the development of optical gas sensing layers that are stable under harsh environmental conditions is an ongoing research challenge. In this work, electronically conducting metal oxide lanthanum-doped strontium titanate (LSTO) films embedded with gold nanoparticles are examined as a sensing layer for application in reducing gas flows at high temperature (600–800 °C). A strong localized surface plasmon resonance (LSPR) based response to hydrogen is demonstrated in the visible region of the spectrum, while a Drude free electron-based response is observed in the near-IR. Characteristics of these responses are studied both on planar glass substrates and on silica fibers. Charge transfer between the oxide film and the gold nanoparticles is explored as a possible mechanism governing the Au LSPR response and is considered in terms of the corresponding properties of the conducting metal oxide-based matrix phase. Principal component analysis is applied to the combined plasmonic and free-carrier based response over a range of temperatures and hydrogen concentrations. It is demonstrated that the combined visible and near-IR response of these films provides improved versatility for multiwavelength interrogation, as well as improved discrimination of important process parameters (concentration and temperature) through application of multivariate analysis techniques.</span>

Research Organization:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
Sponsoring Organization:
USDOE Office of Fossil Energy (FE)
DOE Contract Number:
NA
OSTI ID:
1768716
Report Number(s):
NA
Journal Information:
Nanoscale (Online), Vol. 12, Issue 27
Country of Publication:
United States
Language:
English

References (39)

Review and perspective: Sapphire optical fiber cladding development for harsh environment sensing journal March 2018
Plasmonic Conducting Metal Oxide-Based Optical Fiber Sensors for Chemical and Intermediate Temperature-Sensing Applications journal November 2018
Engineering metal oxide nanostructures for the fiber optic sensor platform journal January 2014
Optical and Chemi-Resistive Sensing in Extreme Environments: La-Doped SrTiO 3 Films for Hydrogen Sensing at High Temperatures journal March 2015
Multi-component optical sensing of high temperature gas streams using functional oxide integrated silica based optical fiber sensors journal February 2018
Optical gas sensing responses in transparent conducting oxides with large free carrier density journal July 2014
Plasmonic transparent conducting metal oxide nanoparticles and nanoparticle films for optical sensing applications journal July 2013
Perovskite Oxide for Solid Oxide Fuel Cells book January 2009
Thermal, electrical, and electrocatalytical properties of lanthanum-doped strontium titanate journal July 2002
Electron mobility of Sr 1-x La x TiO 3 ceramics between 600 °C and 1300 °C journal September 1997
Electrical Conductivity in Lanthanum-Doped Strontium Titanate journal January 1982
Rational design of mixed ionic and electronic conducting perovskite oxides for solid oxide fuel cell anode materials: A case study for doped SrTiO3 journal January 2014
High temperature fiber-optic evanescent wave hydrogen sensors using La-doped SrTiO3 for SOFC applications journal December 2015
High temperature oxygen sensors based on doped SrTiO3 journal October 1999
Examination of charge transfer in Au/YSZ for high-temperature optical gas sensing journal September 2014
Factors Influencing the Stability of Au-Incorporated Metal-Oxide Supported Thin Films for Optical Gas Sensing journal January 2017
Thermal Stability of Gold Nanorods for High-Temperature Plasmonic Sensing journal May 2013
Temperature dependence of the surface plasmon resonance in gold nanoparticles journal February 2013
Analytical model for the optical functions of amorphous semiconductors from the near-infrared to ultraviolet: Applications in thin film photovoltaics journal September 2002
Thermopower of Sr 1− x La x TiO 3 ceramics journal October 1995
Charge Transfer in Metal Catalysts Supported on Doped TiO2: A Theoretical Approach Based on Metal–Semiconductor Contact Theory journal July 1996
Dielectric properties of sputtered TiO2 films journal May 1978
Dielectric properties of SrTiO3 single crystals subjected to high electric fields and later irradiated with X-rays orγ-rays journal October 1989
Evaporated Metallic Contacts to Conducting Strontium Titanate Single Crystals journal July 1967
On the physical limitations for radio frequency absorption in gold nanoparticle suspensions journal March 2017
An analytic model for the optical properties of gold journal October 2006
A new simple method of determining the effective mass of an electron or the thickness of thin metal films journal July 1986
Hydrogen as a Cause of Doping in Zinc Oxide journal July 2000
Proton-Conducting Oxides journal August 2003
Transport of hydrogen species in a single crystal SrTiO3 journal July 2006
Observation of temperature dependence of the IR hydroxyl absorption bands in silica optical fiber journal July 2016
Thermally induced emission from hydroxyl groups in fused silica optical fibers journal November 2019
Plasmonic nanocomposite thin film enabled fiber optic sensors for simultaneous gas and temperature sensing at extreme temperatures journal January 2013
High temperature optical sensing of gas and temperature using Au-nanoparticle incorporated oxides journal October 2014
High Sensitivity Plasmonic Sensing of Hydrogen over a Broad Dynamic Range Using Catalytic Au-CeO 2 Thin Film Nanocomposites journal November 2018
Selective Plasmonic Gas Sensing: H 2 , NO 2 , and CO Spectral Discrimination by a Single Au-CeO 2 Nanocomposite Film journal June 2012
Plasmonic-Based Sensing Using an Array of Au–Metal Oxide Thin Films journal November 2012
In-situ and ex-situ characterization of TiO 2 and Au nanoparticle incorporated TiO 2 thin films for optical gas sensing at extreme temperatures journal March 2012
Plasmon resonance at extreme temperatures in sputtered Au nanoparticle incorporated TiO 2 films conference October 2012