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Proceedings Paper

Effects of laser wavelength, fluence, and pulse duration on infrared pulsed laser deposition of a conducting polymer
Author(s): S. L. Johnson; K. Appavoo; H. K. Park; R. F. Haglund
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Paper Abstract

Thin films of a conducting polymer have been grown by resonant infrared matrix-assisted pulsed-laser evaporation (RIR-MAPLE). Properties of the thin films such as surface morphology and electrical conductivity have been investigated as a function of laser wavelength, fluence, and pulse structure. Using a free-electron laser whose wavelength is continuously tunable throughout the mid-infrared region (2-10 μm), we are able to deposit polymer films from various liquid matrices by resonantly exciting selective vibrational modes of the solvent. An Er:YAG laser operating at 2.94 μm is used to study the effects of different laser pulse durations. In the case of poly(3,4 ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS), it is found that only specific excitation wavelengths and pulse durations lead to the deposition of smooth and functional polymer films.

Paper Details

Date Published: 7 March 2008
PDF: 10 pages
Proc. SPIE 6879, Photon Processing in Microelectronics and Photonics VII, 68790Y (7 March 2008); doi: 10.1117/12.764035
Show Author Affiliations
S. L. Johnson, Vanderbilt Univ. (United States)
K. Appavoo, Berea College (United States)
H. K. Park, AppliFlex LLC (United States)
R. F. Haglund, Vanderbilt Univ. (United States)

Published in SPIE Proceedings Vol. 6879:
Photon Processing in Microelectronics and Photonics VII
David B. Geohegan; Frank Träger; Jan J. Dubowski; Andrew S. Holmes; Michel Meunier; Craig B. Arnold; Hiroyuki Niino, Editor(s)

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