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  • 1 INFLPR-National Institute for Laser, Plasma and Radiation Physics PPAM-Lasers Department Bvd. Atomistilor, Nr. 409 Magurele Romania
  • | 2 University of Craiova Faculty of Physics A.I. Cuza Str., Nr. 13 Craiova Romania
  • | 3 University of Craiova Faculty of Chemistry Calea Bucuresti Str., Nr. 107 I Craiova Romania
  • | 4 University of Bucharest Bvd. Regina Elisabeta, Nr. 4-12 Bucuresti Romania
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Abstract  

A new synthesized 4CN type azomonoether, exhibiting dying properties, crystalline nature and generating interest as a material for non-linear optical applications was investigated. Modern devices incorporating liquid crystals tend to use thin films of such materials because of their special characteristics. Thermal stability studies are indispensable before attempting any deposition experiment. We have investigated the thermal behaviour of 4-[(4-chlorobenzyl)oxy]-4′-cyano-azobenzene (TG, DTG, DTA and DSC) in inert flow atmosphere, under non-isothermal conditions. The phase transitions were studied by repeated heating-cooling regimes, with intercalated isothermal steps. The thin films were deposited on silicon and quartz substrates by matrix assisted pulsed laser evaporation (MAPLE) using a Nd:YAG laser working at 266 nm. FTIR spectroscopy of the obtained thin films confirmed the preservation of the compound’s structure.

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