Esenturk, O.
and Melinger, J.
(2008),
Terahertz Mobility Measurements on P3HT Films: Device Comparison, Molecular Weight and Film Processing Effects, Journal of Applied Physics, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=841108
(Accessed December 7, 2024)
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Terahertz Mobility Measurements on P3HT Films: Device Comparison, Molecular Weight and Film Processing Effects
Published
Author(s)
, Joseph S. Melinger
Abstract
We report the first direct comparison of relative carrier mobilities in semiconducting organic polymer films measured using non-contact optical pump terahertz probe spectroscopy to those reported in electrical device studies. Relative transient signal amplitude measurements of photo-injected mobility as a function of polythiophene (P3HT) molecular weight correlate directly with electrical device test values, indicating that the THz method shows promise as a rapid materials screening approach. We also present new measurements on P3HT conducting films as a function of structural regularity, dispersing solvent, addition of C60 electron traps, sample temperature and other growth parameters relevant to device manufacture.Citation
Journal of Applied Physics
Pub Type
Journals
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Keywords
mobility, organic semiconductor, P3HT, photoconductivity, terahertz, THz
Citation
Issues
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Created January 17, 2008, Updated February 19, 2017