http://www.cnr.it/ontology/cnr/individuo/prodotto/ID208296

Preparation of high-quality organic films by deposition and codeposition from supersonic seeded beams (Contributo in atti di convegno)

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Preparation of high-quality organic films by deposition and codeposition from supersonic seeded beams (Contributo in atti di convegno) (literal)

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Tullio Toccoli a, Andrea Boschetti a, Claudio Corradi a, Maurizio Mazzola a, Paolo Milani b, Alessandro Podestà b, and Salvatore Iannotta a (2001)
Preparation of high-quality organic films by deposition and codeposition from supersonic seeded beams
in Conference on Organic Photonic Materials and Devices III, SAN JOSE, CA, USA, JAN 24-25, 2001
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Tullio Toccoli a, Andrea Boschetti a, Claudio Corradi a, Maurizio Mazzola a, Paolo Milani b, Alessandro Podestà b, and Salvatore Iannotta a (literal)

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Conference on Organic Photonic Materials and Devices III Location: SAN JOSE, CA Date: JAN 24-25, 2001 Sponsor(s): SPIE (literal)

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http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=902164 (literal)

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a CeFSA - CNR-ITC Research Center on the Physics of Aggregates, Via Sommarive 18, 38050 Povo di Trento (Italy); b INFM Dipartimento di Fisica, Università di Milano, Via Celoria 16, 20133 Milano (Italy) (literal)

Titolo

Preparation of high-quality organic films by deposition and codeposition from supersonic seeded beams (literal)

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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 functionalzing or doping organic semiconductors. We achieved co-depositions of a p-type semiconductor, as metal phthalocyanines, with a n-type semiconductor, as fullerenes, without phase segregation between the two compounds and with an 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. (literal)

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