Surface effects on the growth of solution processed pentacene thin films

Data di pubblicazione: 2 Gen 2008

RivistaFonte dati: OPENALEXTipo OpenAlex: articleAccesso chiuso
Autori: Chiara Musumeci, Claudia Cascio, Antonino Scandurra, Giuseppe Francesco Indelli, Corrado Bongiorno, Sebastiano Ravesi, Bruno Pignataro

13,6-N-Sulfinylacetamidopentacene (SAP) has been transferred on solid substrates both by water-rich environment and organic solvents without altering his chemical structure. Thermal conversion of SAP to pentacene leads to crystals showing similar features of vacuum-sublimated pentacene both in the bulk and thin-film phases. The thin-film phase is strongly affected by the substrate surface properties. Low energy Si–CH3 rich surfaces allow for the formation of compact micrometric crystals following a Volmer–Weber like growth with orientation suitable for field-effect carrier mobility. Screw dislocations along with straight edges are found on these systems as an indication of a loose interlayer interaction with respect to the lateral π–π intermolecular forces. In contrast, higher energy SiOH rich surfaces result in non-compact systems (Stransky–Krastanov like growth) arising by in-space randomly oriented crystals as …

Editore
North-Holland
Fonte
Surface science
Volume
602
Fascicolo
4
Pagine
993-1005
Citazioni
16
ID archivio
461e2dee6dc42b305a27065ea709e79b
Riferimenti
Volume: 602 Issue: 4 Pages: 993-1005