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Transport Properties of Stretch-Oriented PPV Films

Published online by Cambridge University Press:  01 February 2011

Tiffany Wilson ,
F. Patrick Doty ,
Douglas Chinn ,
A. Alec Talin ,
Michael King ,
Luke L. Hunter ,
Frank E. Jones ,
Christine Cuppoletti ,
H. Rouchanian  and
C. Munoz
Tiffany Wilson
Affiliation:
tmswils@sandia.gov, Sandia National Laboratory, 7011 East Ave, Livermore, CA, 94550, United States
F. Patrick Doty
Affiliation:
fpdoty@sandia.gov, Sandia National Laboratory, 7011 East Ave, Livermore, CA, 94550, United States
Douglas Chinn
Affiliation:
dachinn@sandia.gov, Sandia National Laboratory, Albuquerque, NM, 87185, United States
A. Alec Talin
Affiliation:
aatalin@sandia.gov, Sandia National Laboratory, 7011 East Ave, Livermore, CA, 94550, United States
Michael King
Affiliation:
miking@sandia.gov, Sandia National Laboratory, 7011 East Ave, Livermore, CA, 94550, United States
Luke L. Hunter
Affiliation:
lhunte@sandia.gov, Sandia National Laboratory, 7011 East Ave, Livermore, CA, 94550, United States
Frank E. Jones
Affiliation:
fejones@sandia.gov, Sandia National Laboratory, 7011 East Ave, Livermore, CA, 94550, United States
Christine Cuppoletti
Affiliation:
ccuppo@sandia.gov, Sandia National Laboratory, 7011 East Ave, Livermore, CA, 94550, United States
H. Rouchanian
Affiliation:
hrouch@sandia.gov, Sandia National Laboratory, 7011 East Ave, Livermore, CA, 94550, United States
C. Munoz
Affiliation:
cmunoz@sandia.gov, Sandia National Laboratory, Albuquerque, NM, 87185, United States
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Abstract

Organic semiconductors are under investigation for radiation sensors at Sandia National Laboratories. The wide band gaps, high resistivities, low dielectric constants, and high dielectric strengths of conjugated polymers suggest these materials may be suitable for solid-state particle counting detectors. A range of solution cast materials have been evaluated for this application, including polythiophenes and poly(p-phenylene vinylene)s, or PPVs.

Films were prepared by novel solution casting and mechanical stretching methods. Device structures including interdigital metal electrodes on glass and thin film transistors on SiO2 on silicon were fabricated by drop casting from solution and lamination of solid films. Transient and DC responses were recorded and analyzed. Experiments include laser stimulus for photoconductive pulse response, and field effect transistor testing. Mechanical stretching was shown to dramatically alter electrical properties of polymer films.

Future work will analyze the feasibility of single particle detection and analyze various geometries for optimization. The effects of traps and methods for reduction of trapping effects will be analyzed.

Keywords

polymersemiconductingneutron irradiation
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 937: Symposium M – Conjugated Organic Materials – Synthesis, Structure, Device, and Applications , 2006 , 0937-M03-04
Copyright
Copyright © Materials Research Society 2006

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References

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