Title :
Space-and-time current spectroscopy of polypyrrole nanostructures in chrysotile asbestos matrix
Author :
Sokolov, Igor ; Bryushinin, Mikhail ; Semkin, Victor ; Kumzerov, Yurii
Author_Institution :
Russian Acad. of Sci., St. Petersburg
Abstract :
A high sensitive lock-in nanovoltmeter is used in this study to investigate the effect of nonsteady-state photoelectromotive force in polypyrrole nanowires within chrysotile asbestos matrix. The conductivity and diffusion length of photocarriers are estimated. Observations show that the time dependence of the detected signal is due to the transition in the conductive and insulating states of polypyrrole.
Keywords :
carrier lifetime; electrical conductivity transitions; nanowires; photoconductivity; polymers; chrysotile asbestos matrix; conductive-insulating state transition; high sensitive lock-in nanovoltmeter; nonsteady-state photoelectromotive force; photocarrier diffusion length; photoconductivity; polypyrrole nanowires; space-time current spectroscopy; Conductivity; Electrooptic modulators; Frequency; Interference; Laser beams; Nanostructures; Nanowires; Semiconductor materials; Signal processing; Spectroscopy;
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0931-0
Electronic_ISBN :
978-1-4244-0931-0
DOI :
10.1109/CLEOE-IQEC.2007.4386071
