| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Pasricha, Renu
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (34/34 displayed)
- 2022Synthesis of Self-Assembled Single Atomic Layer Gold Crystals-Goldenecitations
- 2021Designing and development of polyvinylpyrrolidone-tungsten trioxide (PVP-WO3) nanocomposite conducting film for highly sensitive, stable, and room temperature humidity sensingcitations
- 2018Dual photoluminescence and charge transport in an alkoxy biphenyl benzoate ferroelectric liquid crystalline-graphene oxide compositecitations
- 2017Surface Functionalization of Biomaterialscitations
- 2017Preparation and characterisation of silk fibroin–silver nanoparticles (SF–AgNPs) composite filmscitations
- 2016Synthesis and characterization of ring shaped spermine mediated nanogold assemblies at the air water interface
- 2015Optical Properties of Silver Nanoparticles Integrated Graphene Oxide Thin Films on Glass and Silicon Substratescitations
- 2013Graphene oxide-chitosan nanocomposite based electrochemical DNA biosensor for detection of typhoidcitations
- 2013Gold-nanoparticle-decorated boron nitride nanosheetscitations
- 2012Carbon nanotubescitations
- 2012Ultra-low level optical detection of mercuric ions using biogenic gold nanotrianglescitations
- 2011Copper nanoparticles synthesis from electroplating industry effluentcitations
- 2011Magnetite/CdTe magnetic-fluorescent composite nanosystem for magnetic separation and bio-imagingcitations
- 2011Fabrication and characterization of Al-matrix composites reinforced with amino-functionalized carbon nanotubescitations
- 2011Fabrication of al-matrix composites reinforced with amino functionalized boron nitride nanotubescitations
- 2010Synthesis of Gold Nanoparticles by Leaves of Zero-Calorie Sweetener Herb (Stevia rebaudiana) and Their Nanoscopic Characterization by Spectroscopy and Microscopycitations
- 2006Thermally assisted semiconductor-like to insulator transition in gold-poly(methyl methacrylate) nanocompositescitations
- 2005Polycondensation in liquid crystalline phases of nonionic surfactants. Kinetics and morphologycitations
- 2005A coprecipitation technique to prepare BaNb2O6citations
- 2005Polymerization in surfactant liquid crystalline phasescitations
- 2005Synthesis and analysis of ZnO and CdSe nanoparticlescitations
- 2005Preparation of nanocrystalline ferroelectric CaBi2Ta 2O9 by the urea methodcitations
- 2005Preparation of ferroelectric BaNb2O6 by the urea methodcitations
- 2005Synthesis of Sr0.5Ba0.5Nb2O6 by urea methodcitations
- 2005Deposition and characterization of silver nano-films by a novel solid liquid interface reaction technique (SLIRT)citations
- 2004Size dependent redox behavior of monolayer protected silver nanoparticles (2-7 nm) in aqueous mediumcitations
- 2004Phase transfer of platinum nanoparticles from aqueous to organic solutions using fatty amine moleculescitations
- 2004Use of aqueous foams for the synthesis of gold nanoparticles of variable morphologycitations
- 2004A low-temperature, soft chemistry method for the synthesis of zirconia nanoparticles in thermally evaporated fatty amine thin filmscitations
- 2004Solvent-assisted one-pot synthesis and self-assembly of 4-aminothiophenol-capped gold nanoparticlescitations
- 2004One-step synthesis of ordered two-dimensional assemblies of silver nanoparticles by the spontaneous reduction of silver ions by pentadecylphenol langmuir monolayerscitations
- 2004A low temperature route to prepare BaNb2O6citations
- 2004Variation in morphology of gold nanoparticles synthesized by the spontaneous reduction of aqueous chloroaurate ions by alkylated tyrosine at a liquid-liquid and air-water interfacecitations
- 2003Assembling gold nanoparticles in solution using phosphorothioate DNA as structural interconnects
Places of action
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article
Dual photoluminescence and charge transport in an alkoxy biphenyl benzoate ferroelectric liquid crystalline-graphene oxide composite
Abstract
<p>An optimized concentration of graphene oxide (GO) has been dispersed in a ferroelectric liquid crystalline (FLC) material namely 4′-(octyloxy)-[1,1′-biphenyl]-4-yl 4-(heptan-2-yloxy)benzoate, to prepare a FLC-GO composite. Temperature dependent photoluminescence (PL) measurements for the FLC-GO composite were conducted between 30-100 °C. We observed a superlinear increase in the PL with increasing temperature. The time resolved luminescence study exhibits a bi-exponential decay time with a shorter life time for the FLC-GO composite and confirms the surface energy transfer from GO to FLC. Charge transport and current-voltage (I-V) characteristics for the FLC-GO composite have been investigated at ambient conditions by using current sensing atomic force microscopy. For the FLC-GO composite, critical diode like nonlinear I-V curves have been obtained in which the charge transport is assigned to the thermally active intermolecular hopping at room temperature. The FLC material yields ionic charge mobilities of 1.45 × 10<sup>-5</sup>, 1.26 × 10<sup>-5</sup> and 9.83 × 10<sup>-6</sup> cm<sup>2</sup> V<sup>-1</sup> s<sup>-1</sup> in isotropic, chiral nematic (N∗) and chiral smectic C (SmC∗) phases. The dispersion of GO significantly enhances the ionic mobility in the composite which was observed to be 2.71 × 10<sup>-4</sup>, 2.69 × 10<sup>-4</sup> and 2.65 × 10<sup>-4</sup> cm<sup>2</sup> V<sup>-1</sup> s<sup>-1</sup> for the aforementioned phase sequence. Physical interactions between GO and FLC molecules were confirmed by FTIR and polarized optical microscopy. In-plane coupling between the orientation of GO and the long molecular axis of the FLC molecules remarkably enhances the band intensity of CO, C-H, COO, C-O and C-H vibrations. The size of multi-domain fan texture in the SmC∗ phase has been enhanced after the dispersion of GO. The cobweb like networking in the oily streaks texture of the N∗ phase confirms the interesting molecular architecture via planar anchoring between FLC molecules and GO. This work opens new avenues towards applications in pico-ampere current-regulated electronic devices and opto-electronics.</p>