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 language | English |
---|---|
Pages (from-to) | 2231-2233 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 69 |
Issue number | 15 |
DOIs | |
Publication status | Published - 7 Oct 1996 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)