Category Archives: Uncategorized

Fast-Response Photonic Device Based on Organic-Crystal Heterojunctions Assembled into a Vertical-Yet-Open Asymmetric Architecture

Organic semiconductor, due to their excellent interaction with light, could be made into photosensors. The scientists of the Laboratory of Organic Physics have been working together with colleagues from University of Strasbourg and CNR Bologna on novel forms of photonic … Continue reading

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The role of local potential minima on charge transport in thin organic semiconductor layers

We have performed a systematic study of dependence of time-resolved photocurrent on the point of charge excitation within the organic semiconductor channel formed by two coplanar metal electrodes. The results confirm that spatial variation of electric field between the electrodes … Continue reading

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Time-dependence measurement of photoconductivity crucial for the new type of organic optical components

On 25th of July 2016, the prestigious international journal Nature Nanotechnology has published an article by an international group of scientists from the University of Strasbourg (France) and the University of Nova Gorica (Slovenia). The article presents the results of … Continue reading

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Breakthrough in organic electronics: flexible and multilevel memory devices

Researchers from the University of Nova Gorica (Slovenia), University of Strasbourg & CNRS (France) and the Humboldt University of Berlin (Germany)  have shown that a carefully chosen blend of a small photoswitchable molecule and a semiconducting polymer can be used … Continue reading

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Fabrication of poly(3-hexylthiophene) nanowires for high-mobility transistors

Our researchers with collaboration of colleagues from MRL laboratory and IJS scientists, found a novel and efficient method used to improve carrier mobilities of poly(3-hexylthiophene) (P3HT)-based organic field effect transistors by means of nanowire formation. The treatment, termed solvation, consists … Continue reading

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Graphene flakes at the SiO2/organic-semiconductor interface for high-mobility field-effect transistors

Our group published new research in collaboration with colleagues from Max Planck Institute from Mainz. We demonstrated that high-transconductance organic thin film transistors can be achieved by depositing electrochemically exfoliated graphene flakes at the gate-dielectric/organic semiconductor (OS) interface. This effect … Continue reading

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Effect of Water Layer at the SiO2/Graphene Interface on Pentacene Morphology

Atomic force microscopy has been used to examine early stages of pentacene growth on exfoliated single-layer graphene transferred to SiO2 substrates. We have observed 2D growth with mean height of 1.5 ± 0.2 nm on as-transferred graphene. Three-dimensional islands of … Continue reading

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Graphene-induced Enhancement of N-type Mobility in Perylenediimide Thin Films

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

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Pentacene on graphene: Differences between single layer and bilayer

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

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Influence of Solid-State Microstructure on the Electronic Performance of TES-ADT

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

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