Author Archives: pavlica
In collaboration with the University of Strasbourg and ISOF-CNR Bologna, Italy, our group published results of a study of graphene/organic semiconductor composites. Organic thin-film transistor transfer characteristics and time-of-flight (TOF) photoconductivity measurements were used to investigate the effect of the … Continue reading
Using atomic force microscopy we have examined morphology of sub-monolayer thick pentacene layers, deposited on exfoliated single-layer and bilayer graphene, transferred onto SiO2. We observe two-dimensional island growth in the range of substrate temperatures from 10 to 60 °C. We find … Continue reading
Together with Imperial College, Holst Centre, ICMM Madrid, University of Kentucky and ETH Zürich we have been investigating electric transport properties of 5,11-bis(triethylsilylethynyl) anthradithiophene (TES ADT). TES ADT– one of the most promising, solution-processable small-molecular organic semiconductors – was analyzed, … Continue reading
Influence of transfer residue on the optical properties of chemical vapor deposited graphene investigated through spectroscopic ellipsometry
Graphene is the material of the future. Our group in collaboration with Serbian partners have examined the effects of transfer residue and sample annealing on the optical properties of chemical vapor deposited graphene, transferred onto a sapphire substrate. The optical … Continue reading
Photo-induced intramolecular charge transfer in an ambipolar field-effect transistor based on a π-conjugated donor–acceptor dyad
Our research team collaborated in a photoconductivity characterization of an interesting dyad molecule. A π-conjugated tetrathiafulvalene-fused perylenediimide (TTF-PDI) molecular dyad is successfully used as a solution-processed active material for light sensitive ambipolar field-effect transistors with balanced hole and electron mobilities. … Continue reading
We have examined the effect of submonolayer coverage of 1-pyrene butyric acid on charge carrier transport in reduced graphene oxide. We have modeled the interaction of 1-pyrene butyric acid molecules with graphene and determined the amount of charge transfer at … Continue reading
We are proud to announce Graphene Workshop 2013 – from fundamental properties to application, which will be hosted in our Laboratory from 8th to 11th April 2013.
Folds in graphene – grafolds are frequently present even after transferring graphene layers, which were fabricated by chemical vapor deposition (CVD), onto SiO2 substrates. As we are showing in the present Letter, grafolds have a crucial role in determining the … Continue reading
We explained the difference between charge mobility of time-of-flight measurement and field-effect measurement in a recent paper. Time-of-flight measurements of the photocurrent in thin organic semiconductor layers represent an effective way to extract charge carrier mobility. A common method to … Continue reading
Scientific publication in the journal Nature reinforces the important role of Nova Gorica University in the field of organic electronics.
The researchers of Laboratory for Organic Matter Physics, University of Nova Gorica dr. Egon Pavlica and prof. dr. Gvido Bratina, together with colleagues from the University of Strasbourg, France, Humboldt University in Berlin, Germany and Stanford University, USA, have published … Continue reading