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[en] Organic semiconductors have got a lot of interest during the last years, due to their usability for organic thin film transistor. Pentacene, C_2_2H_1_4, is one of leading candidates for this purpose. While we obtain the published data about pressure-induced phase transition only on single crystal of pentacene we present pressure-induced phase transition in pentacene thin layers for the first time. Changes in the pentacene structure, caused by the pressure, were detected by micro-Raman spectroscopy. Applying the defined pressure to the pentacene layer it can be transformed from thin phase to bulk phase. Micro-Raman spectroscopy was found as useful method for detection of changes and phases identification in the pentacene layer induced by mechanical pressure. Such a pressure-induced transformation of pentacene thin layers was observed and identified for the first time. (authors)
Source
Pudis, D. (ed.) (Dept. of Physics, Univ. of Zilina, Zilina (Slovakia)); Kubicova, I. (ed.) (Dept. of Physics, Univ. of Zilina, Zilina (Slovakia)); Bury, P. (ed.) (Dept. of Physics, Univ. of Zilina, Zilina (Slovakia)); Dept. of Physics, Faculty of Electrical Engineering, University Of Zilina, Zilina (Slovakia); Institute of Nuclear and Physical Engineering, Institute of Electronics and Photonics, Faculty of Electrical Engineering and Information Technology, Slovak Univ. of Technology, Bratislava (Slovakia); Slovak Physical Society, Bratislava (Slovakia); 328 p; ISBN 978-80-554-0386-1; 
; 15 Jun 2011; p. 296-299; APCOM 2011: 17. International Conference on Applied Physics of Condensed Matter; High Tatras (Slovakia); 22-24 Jun 2011; PROJECTS NANONET II ITMS-26240120018; APVV 0262/10; VEGA-1/0851/11; VEGA-1/0689/09; VEGA-2/0147/11; Also available from http://kf.elf.stuba.sk/∼apcom/apcom11/proceedings/; 4 fiigs., 6 refs.
; 15 Jun 2011; p. 296-299; APCOM 2011: 17. International Conference on Applied Physics of Condensed Matter; High Tatras (Slovakia); 22-24 Jun 2011; PROJECTS NANONET II ITMS-26240120018; APVV 0262/10; VEGA-1/0851/11; VEGA-1/0689/09; VEGA-2/0147/11; Also available from http://kf.elf.stuba.sk/∼apcom/apcom11/proceedings/; 4 fiigs., 6 refs.