Record Display for the EPA National Library Catalog

RECORD NUMBER: 1 OF 1

Main Title

Optical and Electrical Properties of Doped Poly-3-Octylthiophene Films.

Author

Lidberg, R. L. ; Goswami, K. ; Lovato, M. R. ; Venkatasubramanian, R. ; Engelmann, W. H. ;

CORP Author

Nevada Univ., Las Vegas. ;Physical Optics Corp., Torrance, CA.;Environmental Monitoring Systems Lab., Las Vegas, NV.

Publisher

1995

Year Published

1995

Report Number

EPA-R-818353; EPA/600/A-95/046;

Stock Number

PB95-199683

Additional Subjects

Polymer films ; Optical properties ; Electrical properties ; Doped materials ; Reprints ; Absorption ; Electrical resistivity ; Electron transfer ; Electric charge ; Semiconductors(Materials) ; Semiconducting films ; Organic compounds ; Polycyclic sulfur heterocycles ; Spectroscopic analysis ; Electrochemistry ; Sensors ; Thiophene/poly-3-octyl ; P3OT ; Organic dopants

Holdings

Library	Call Number	Additional Info	Location	Last Modified	Checkout Status
NTIS	PB95-199683	Some EPA libraries have a fiche copy filed under the call number shown.		07/26/2022

Collation

12p

Abstract

Results of optical absorption and electrical conductivity measurements of solution-doped poly-3-octylthiophene (P3OT) films were studied. Chloroform solutions of P3OT were doped with the organic electron-acceptors, 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) and 7,7,8,8-tetracyanoquinodimethane (TCNQ); and with the inorganic electron acceptor, ferric chloride. Charge transfer was observed in P3OT solutions doped with FeCl3 and DDQ. TCNQ-doped solutions showed no optical evidence of charge transfer. Thin films of doped P3OT were examined at various doping levels. Results are discussed in relation to the electrochemical properties of the prepared films. Usefulness lies in the ability to design and tailor new chemical sensor films which are responsive to various analytes of interest and importance to the U.S. Environmental Protection Agency, based on the analytes' electrochemical characteristics.