Title :
pH dependence of carrier transport in PEDOT:PSS films investigated by THz and IR-UV spectroscopy
Author :
Yamashita, M. ; Sasaki, T. ; Okuzaki, H. ; Otani, C.
Author_Institution :
THz Sensing & Imaging Lab., RIKEN ASI, Sendai, Japan
Abstract :
We investigated the pH effect on the carrier transport in conducting polymer PEDOT:PSS films by the combination of terahertz and infrared-ultraviolet spectroscopy, which revealed that the increase of the pH decreased the DC conductivity resulting from the decrease of carrier density and mobility due to the weak carrier localization.
Keywords :
carrier density; carrier mobility; conducting polymers; electrical conductivity; infrared spectra; pH; polymer films; terahertz wave spectra; ultraviolet spectra; DC conductivity; IR-UV spectroscopy; THz spectroscopy; carrier density; carrier mobility; carrier transport; conducting polymer films; infrared-ultraviolet spectroscopy; pH dependence; pH effect; thin films; weak carrier localization; Conductivity; Doping; Films; Plasmas; Polymers; Reflectivity; Spectroscopy;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on
Conference_Location :
Wollongong, NSW
Print_ISBN :
978-1-4673-1598-2
Electronic_ISBN :
2162-2027
DOI :
10.1109/IRMMW-THz.2012.6380295
