title: Thermal Emissivity-Based Chemical Spectroscopy through Evanescent Tunneling.
abstract: A new spectroscopic technique is presented, with which environmentalchemistry-induced thermal emissivity changes of thin films are extracted with high isolation through evanescent tunneling. With this method the hydrogen-induced emissivity changes of films of TiO2 , Pd-TiO2 , and Au-TiO2 , with properties of high conductivity, hydrogen chemisorption, and plasmonic activity, are characterized in the UV-vis and NIR wavelength ranges, at 1073 K.
authors.affiliation: National Energy Technology Laboratory, 626 Cochrans Mill Rd, Pittsburgh, PA, 15236, USA.
authors.forename: Zsolt L
authors.initials: ZL
authors.lastname: Poole
authors.affiliation: National Energy Technology Laboratory, 626 Cochrans Mill Rd, Pittsburgh, PA, 15236, USA.
authors.forename: Paul R
authors.initials: PR
authors.lastname: Ohodnicki
keywords: evanescent tunneling; thermal emissivity; thermal spectroscopy