title: Potential Modulation on Total Internal Reflection Ellipsometry.
abstract: Electrochemical-total internal reflection ellipsometry (EC-TIRE) has been proposed as a technique to observe the redox reactions on the electrode surface due to its high phase sensitivity to the electrolyte/electrode interface. In this paper, we mainly focus on the influence of the potential modulation on the TIRE response. The analysis suggests that both dielectric constant variation of gold and the electric double layer transformation would modulate the reflection polarization of the surface. For a nonfaradaic process, the signal of TIRE would be proportional to the potential modulation. To testify the analysis, linear sweep voltammetry and open circuit measurement have been performed. The results strongly support the system analysis.
authors.affiliation: NML, Institute of Mechanics, Chinese Academy of Sciences , 15 Bei-si-huan West Road, Beijing, 100190, China.|Beijing Key Laboratory of Engineered Construction and Mechanobiology, Institute of Mechanics, Chinese Academy of Sciences , 15 Bei-si-huan West Road, Beijing 100190, China.|University of Chinese Academy of Sciences , 19 Yu-quan Road, Beijing, 100049, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Liu
authors.affiliation: NML, Institute of Mechanics, Chinese Academy of Sciences , 15 Bei-si-huan West Road, Beijing, 100190, China.|Beijing Key Laboratory of Engineered Construction and Mechanobiology, Institute of Mechanics, Chinese Academy of Sciences , 15 Bei-si-huan West Road, Beijing 100190, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Niu
authors.affiliation: Centro de Química e Bioquímica, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade de Lisboa , Ed. C8, Campo Grande, 1749-016 Lisboa, Portugal.
authors.forename: A S
authors.initials: AS
authors.lastname: Viana
authors.affiliation: Centro de Química e Bioquímica, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade de Lisboa , Ed. C8, Campo Grande, 1749-016 Lisboa, Portugal.
authors.forename: Jorge P
authors.initials: JP
authors.lastname: Correia
authors.affiliation: NML, Institute of Mechanics, Chinese Academy of Sciences , 15 Bei-si-huan West Road, Beijing, 100190, China.|Beijing Key Laboratory of Engineered Construction and Mechanobiology, Institute of Mechanics, Chinese Academy of Sciences , 15 Bei-si-huan West Road, Beijing 100190, China.
authors.forename: Gang
authors.initials: G
authors.lastname: Jin