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Proceedings Paper

Preparation of high-quality organic films by deposition and co-deposition via supersonic seeded beams
Author(s): Tullio Toccoli; Andrea Boschetti; Claudio Corradi; Maurizio Mazzola; Paolo Milani; Alessandro Podesta; Salvatore Iannotta
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Paper Abstract

Recent results obtained in the growth of organic materials by supersonic molecular beams (SuMBE) are presented. Compared to other vacuum deposition methods, it allows an accurate control on the initial state (kinetic energy, momentum, flux, etc.) of the molecules during the deposition process. We show that such feature can be efficiently exploited to prepare films, the structure and morphology of which resemble those single crystals, therefore achieving unprecedented control on their optical and electronic properties even for relatively thick samples (> 500 nm). We also report on the use of SuMBE for processes of co-deposition with the aim of functionalizing or doping organic semiconductors. We achieved co-depositions of a p-type semiconductor, as metal phthalocyanines, with an n- type semiconductor, as fullerenes, without phase segregation between the two compounds and with a high control on the deposition parameters. This aspect is very attractive for the growth of organic p-n junction in view of improving photovoltaic cells and gas sensors.

Paper Details

Date Published: 15 June 2001
PDF: 7 pages
Proc. SPIE 4279, Organic Photonic Materials and Devices III, (15 June 2001); doi: 10.1117/12.429377
Show Author Affiliations
Tullio Toccoli, Ctr. di Fisica degli Stati Aggregati (Italy)
Andrea Boschetti, Ctr. di Fisica degli Stati Aggregati (Italy)
Claudio Corradi, Ctr. di Fisica degli Stati Aggregati (Italy)
Maurizio Mazzola, Ctr. di Fisica degli Stati Aggregati (Italy)
Paolo Milani, Univ. di Milano (Italy)
Alessandro Podesta, Univ. di Milano (Italy)
Salvatore Iannotta, Ctr. di Fisica degli Stati Aggregati (Italy)

Published in SPIE Proceedings Vol. 4279:
Organic Photonic Materials and Devices III
Bernard Kippelen; Donal D. C. Bradley, Editor(s)

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