Improved thin films of pentacene via pulsed laser deposition at elevated substrate temperatures

A. J. Salih, S. P. Lau, J. M. Marshall, J. M. Maud, W. R. Bowen, Nidal Hilal, R. W. Lovitt, P. M. Williams

Research output: Contribution to journalArticle

Abstract

Thin films of pentacene were deposited by thermal evaporation and by pulsed laser deposition (PLD). Surface characterization using atomic force microscopy shows that PLD leads to a reduction in surface roughness, which can be reduced further using heated substrates. Observation of enhanced field-effect carrier mobilities in the PLD films, together with increased electrical conductivity and reduced activation energy for electrical conduction, is consistent with increased molecular ordering in the pentacene films and suggests a direct correlation between molecular ordering in the bulk and surface roughness.

Original languageEnglish (US)
Pages (from-to)2231-2233
Number of pages3
JournalApplied Physics Letters
Volume69
Issue number15
DOIs
StatePublished - Oct 7 1996

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pulsed laser deposition
surface roughness
thin films
carrier mobility
temperature
roughness
evaporation
atomic force microscopy
activation energy
conduction
electrical resistivity

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Salih, A. J., Lau, S. P., Marshall, J. M., Maud, J. M., Bowen, W. R., Hilal, N., ... Williams, P. M. (1996). Improved thin films of pentacene via pulsed laser deposition at elevated substrate temperatures. Applied Physics Letters, 69(15), 2231-2233. https://doi.org/10.1063/1.117137

Improved thin films of pentacene via pulsed laser deposition at elevated substrate temperatures. / Salih, A. J.; Lau, S. P.; Marshall, J. M.; Maud, J. M.; Bowen, W. R.; Hilal, Nidal; Lovitt, R. W.; Williams, P. M.

In: Applied Physics Letters, Vol. 69, No. 15, 07.10.1996, p. 2231-2233.

Research output: Contribution to journalArticle

Salih, AJ, Lau, SP, Marshall, JM, Maud, JM, Bowen, WR, Hilal, N, Lovitt, RW & Williams, PM 1996, 'Improved thin films of pentacene via pulsed laser deposition at elevated substrate temperatures', Applied Physics Letters, vol. 69, no. 15, pp. 2231-2233. https://doi.org/10.1063/1.117137
Salih, A. J. ; Lau, S. P. ; Marshall, J. M. ; Maud, J. M. ; Bowen, W. R. ; Hilal, Nidal ; Lovitt, R. W. ; Williams, P. M. / Improved thin films of pentacene via pulsed laser deposition at elevated substrate temperatures. In: Applied Physics Letters. 1996 ; Vol. 69, No. 15. pp. 2231-2233.
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