Monthly Archives: May 2020

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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Characterisation of charge carrier transport in thin organic semiconductor layers by time-of-flight photocurrent measure- ments

We have prepared a review of recent advances in characterisation of charge carrier transport in organic semiconductor layers by time-of-flight photocurrent measurements, with the emphasis on the measurements of the samples with co-planar electrodes. These samples comprised an organic semiconductor … Continue reading

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