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

    Fingerprint

    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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