1016648-73-9Relevant academic research and scientific papers
9,10-Ter-anthrylene-ethynylene: A new molecular architecture for solution processed anthracene-based thin film transistors
Dell'Aquila, Antonio,Marinelli, Francesco,Tey, Junie,Keg, Peisi,Lam, Yeng-Ming,Kapitanchuk, Oleksiy L.,Mastrorilli, Piero,Nobile, Cosimo F.,Cosma, Pinalysa,Marchenko, Alexandr,Fichou, Denis,Mhaisalkar, Subodh G.,Suranna, Gian Paolo,Torsi, Luisa
, p. 786 - 791 (2008)
This study deals with the properties of a new molecular architecture for organic thin film transistors obtained by introducing 10-decylanthr-9-yl-ethynyl moieties at the anthracene 9, 10 positions. The resulting structure, formally a ter-anthrylene-ethynylene (D3ANT), is stable and endowed with sufficient solubility to guarantee the formation of good quality films. The molecule was characterised by 1H NMR, mass spectrometry, IR, UV-vis and photoluminescence both in solution and in the solid state. Cyclic voltammetry measurements, combined with solution UV-vis, permitted the evaluation of HOMO and LUMO energy levels. A series of D3ANT-based OTFT devices were built both in bottom and top contact configurations by a spin coating technique. Top contact OTFT devices exhibited the best semiconducting characteristics, showing an average mobility of 1.2 × 10-2 cm2 V-1 s-1 with on-off ratios higher then 104, while the highest mobility obtained was 0.055 cm2 V-1 s-1. AFM thin-film characterization showed evidence of a granular structure. High-resolution STM images of D3ANT monolayers adsorbed on Au(111) and HOPG reveal highly-ordered self-organized domains with molecules lying flat on the substrates, but, remarkably, no reflections were recorded by out-of plane GIXRD of spin coated films on SiO2. The Royal Society of Chemistry 2008.
