Proceedings

Photoinduced Switching of Charge Carrier Mobility in Conjugated Polymers

In this paper we investigate theoretically a mode of heating thick layers using a laser beam where the temperature of the layer propagates in a steady-state self sustained fashion from the bottom of the layer towards the surface and may exhibit a very steep front. The propagation of the thermal front happens at a constant speed, related to the intensity of the power flux. To achieve this heating mode the absorption coefficient of the layer has to remain low in weak temperatures and increase rapidly as a function of temperature in higher temperatures. Additionally, a significant temperature increase must be generated to trigger this propagation mode, for example through the presence of a strongly absorbing layer beneath the transparent layer. The mode is well suited to semiconductors, especially silicon . The theoretical approach is confirmed by a simulation in the case of a low doped silicon layer 150 micrometers thick above a highly doped substrate ; the low doped silicon is heated homogeneously at 1476 K by a 2E6Wcm-2 CO2 laser beam throughought the entire thickness in a timescale of 20µS.

Photoinduced Switching of Charge Carrier Mobility in Conjugated Polymers, M. Weiter, J. Navrátil, M. Vala and P. Toman (2009), Eur. Phys. J. Appl. Phys. DOI 10.1051/epjap/2009112

I thank you very much for all suggestion and help during the various steps of the procedure and contacts regarding the preparation of documents, articles and information for the publication of the DHF 2014 Conference proceedings in EPJ Web of Conferences vol.96 (2015) of the EDP sciences publisher. It is the second time in the last two years that we decided to choose your journal for the proceedings publication of our conference and symposium, and we are glad for the experience had with your staff and also for the importance of your journal in order to support our conferences and for the dissemination of our scientific activity. I am also very glad for the prompt publication and it is an honour for our organization to have such a publication on your journal.

Giorgio Giardina, Messina University - INFN Catania, Italy
Scientific Secretary of the MESON Conference series, EPJ Web of Conferences vol. 96, 2015

ISSN: 2100-014X (Electronic Edition)

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