Terahertz spectroscopy and hyperspectral imaging of molecular systems

Date

2005-08-28

Author

Heilweil, EJ
Plusquellic, D
Fraser, GT
Esentürk, Okan
Korter, TM
Beard, MC
Campbell, MB
DeWitt, M
Balu, R

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https://hdl.handle.net/11511/53951

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Terahertz spectroscopy of dicyanobenzenes: Anomalous absorption intensities and spectral calculations Esentürk, Okan; Heilweil, E. J. (2007-07-06) Terahertz absorption spectra of three isomeric structures of dicyanobenzene in chloroform solution and solid phase at 298 K are reported. These spectra exhibit enhanced absorption in low THz range compared to most organic systems because of strong coupling to phonon modes. Molecular vibrational spectral calculations show strong correlation with the experiment especially for solution spectra. All intramolecular modes were assigned and intermolecular modes identified. Out-of-plane intramolecular modes at low ...
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Terahertz mobility measurements on poly-3-hexylthiophene films: Device comparison, molecular weight, and film processing effects Esentürk, Okan; Heilweil, Edwin J. (2008-01-15) We directly compare relative carrier mobilities in semiconducting organic polymer films measured using noncontact optical pump terahertz (THz) probe spectroscopy to those reported in electrical device studies. Relative transient signal amplitude measurements of photoinjected carrier mobility as a function of poly-3-hexylthiophene (P3HT) molecular weight correlate directly with electrical device test values, indicating that the THz method shows promise as a rapid material screening approach. We also present ...
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Citation Formats

E. Heilweil et al., “Terahertz spectroscopy and hyperspectral imaging of molecular systems,” 2005, vol. 230, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/53951.