Author Archives: pavlica

Multiresponsive Nonvolatile Memories Based on Optically Switchable Ferroelectric Organic Field‐Effect Transistors

Our group was involved in research of novel type of organic transistors. Organic transistors are key elements for flexible, wearable, and biocompatible logic applications. Multiresponsivity is highly sought‐after in organic electronics to enable sophisticated operations and functions. Such a challenge … Continue reading

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Designing new renewable nano-structured electrode and membrane materials for direct alkaline ethanol fuel cell

Success Story: The NanoElMem project reached its final success. The project presents an innovative approach towards the design and fabrication of materials for the creation of direct alkaline ethanol fuel cells (DAEFC). Emphasis was put on the development of platinum … Continue reading

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A pyrrolopyridazinedione-based copolymer for fullerene-free organic solar cells

Our group was involved in the charge transport study of non-fullerene acceptors in organic photovoltaics. Recent success in this field also entails a change in the requirements to the polymer donor in terms of optical and morphological properties leading to … Continue reading

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Molecular alignment on graphene surface determines transport properties of graphene/organic semiconductor transistors

Graphene field-effect transistor structures were used to investigate the role of molecular alignment on charge transport properties of heterostructures comprising a single-layer graphene and variable thickness of N,N′-bis(n- octyl)-(1,7&1,6)-dicyanoperylene-3,4:9,10-bisdicarboximide (PDI8-CN2) – an n-type organic semiconductor. Our atomic force microscopy data … Continue reading

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Impedimetric, PEDOT:PSS-Based Organic Electrochemical Sensor for Detection of Histamine for Precision Animal Agriculture

Our research on mixed ion-electron conductivity involved us into a collaboration to develop a histamine biosensor. High concentrations of histamine are associated with subacute ruminal acidosis, a common disease in high-producing lactating dairy cows. Therefore, the accurate detection of low … Continue reading

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Elucidation of Donor:Acceptor Phase Separation in Nonfullerene Organic Solar Cells and Its Implications on Device Perfor- mance and Charge Carrier Mobility

A joint study revealed that in bulk-heterojunction solar cells, the device performance strongly depends on the donor and acceptor properties, the phase separation in the absorber layer, and the formation of a bicontinuous network. While this phase separation is well … Continue reading

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Novel Chitosan–Mg(OH)2 -Based Nanocomposite Membranes for Direct Alkaline Ethanol Fuel Cells

We have been involved in a project NanoElMem of novel polymer-based nanocomposite anion-exchange membranes (AEMs) with improved features for direct alkaline fuel cell applications. AEMs based on chitosan (CS), magnesium hydroxide (Mg(OH)2), and graphene oxide (GO) with benzyltrimethylammonium chloride (BTMAC) … Continue reading

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Enhancement of Charge Transport in Polythiophene Semi- conducting Polymer by Blending with Graphene Nanoparticles

We presented a study on the charge transport in a composite of liquid‐exfoliated graphene nanoparticles (GNPs) and a polythiophene semiconducting polymer. While the former component is highly conducting, although it consists of isolated nanostructures, the latter offers an efficient charge … Continue reading

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Enhanced photoconductivity of semiconductor polymers using graphene nanoflakes

We have examined the effect of the addition of graphene nanoflakes (GNs) to improve the field-effect mobility of poly(3-hexylthiophene) (P3HT)-based field-effect transistors (FETs). We observe that the FET mobility increases up to 0.02 cm2/Vs at GNs concentration of 0.06 mg/mL. The remarkable … Continue reading

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The role of charge transfer at reduced graphene oxide/organic semiconductor interface on the charge transport properties

We have published the results of a study of the effect of 1-pyrenesulfonicacid sodium salt (1-PSA), tetracyanoethylene (TCNE) and tetrafluoro- tetracyanoquinodimethane (F4-TCNQ) on charge transport properties of reduced graphene oxide (RGO) is examined by measuring the transfer characteristics of field-effect … Continue reading

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