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A label-free aptamer-based nanogap capacitive biosensor with greatly diminished electrode polarization effects (2019)
Journal Article
Ghobaei Namhil, Z., Kemp, C., Verrelli, E., Iles, A., Pamme, N., Adawi, A. M., & Kemp, N. (2019). A label-free aptamer-based nanogap capacitive biosensor with greatly diminished electrode polarization effects. Physical chemistry chemical physics : PCCP, 21(2), 681-691. doi:10.1039/c8cp05510f

A significant impediment to the use of impedance spectroscopy in bio-sensing is the electrode polarization effect that arises from the movement of free ions to the electrode-solution interface, forming an electrical double layer (EDL). The EDL screen... Read More

Lyotropic ‘hairy’ TiO2 nanorods (2018)
Journal Article
Cheng, F., Verrelli, E., Alharthi, F. A., Kelly, S. M., O'Neill, M., Kemp, N. T., …Anthopoulos, T. (2019). Lyotropic ‘hairy’ TiO2 nanorods. Nanoscale advances, 1, 254-264. doi:10.1039/c8na00054a

We report the synthesis of the first stable, solution-processable and photocrosslinkable hybrid organic/inorganic titanium dioxide nanorods as ‘hairy rods’ coated with phosphonate ligands with photoreactive coumarin groups located in a terminal posit... Read More

Method to reduce the formation of crystallites in ZnO nanorod thin-films grown via ultra-fast microwave heating (2018)
Journal Article
Gray, R. J., Jaafar, A. H., Verrelli, E., & Kemp, N. T. (2018). Method to reduce the formation of crystallites in ZnO nanorod thin-films grown via ultra-fast microwave heating. Thin solid films, 662, (116-122). doi:10.1016/j.tsf.2018.07.034. ISSN 0040-6090

© 2018 This paper discusses the nucleation and growth mechanisms of ZnO nanorod thin-films and larger sized crystallites that form within the solution and on surfaces during an ultra-fast microwave heating growth process. In particular, the work focu... Read More

Cover Picture: Ann. Phys. 2'2018 (2018)
Journal Article
Verrelli, E., Michelakaki, I., Boukos, N., Kyriakou, G., & Tsoukalas, D. (2018). Cover Picture: Ann. Phys. 2'2018. Annalen der Physik, 530(2), doi:10.1002/andp.201870013

In article number 1700256, Emanuele Verrelli and co‐workers propose that cluster beam deposition of sub‐2nm magic number Au clusters, Au20 and Au55, on flat surfaces reveals a rich evolution of the phenomena taking place at substrate level. New magic... Read More

Solution-processable, niobium-doped titanium oxide nanorods for application in low-voltage, large-area electronic devices (2017)
Journal Article
Alharthi, F. A., Cheng, F., Verrelli, E., Kemp, N. T., Lee, A. F., Isaacs, M. A., …Kelly, S. M. (2017). Solution-processable, niobium-doped titanium oxide nanorods for application in low-voltage, large-area electronic devices. Journal of materials chemistry. publ. by The Royal Society of Chemistry. C, Materials for optical and electronic devices /, 6(5), (1038-1047). doi:10.1039/c7tc04197g. ISSN 2050-7526

We report for the first time the one-step synthesis of solution-processable, highly crystalline, niobiumdoped titanium dioxide (Nb-TiO2) nanorods in the anatase phase by the hydrolytic condensation of Ti(OiPr)4 and niobium(V) ethoxide using oleic aci... Read More

Coalescence of cluster beam generated sub-2 nm bare Au nanoparticles and analysis of Au film growth parameters (2017)
Journal Article
Verrelli, E., Michelakaki, I., Boukos, N., Kyriakou, G., & Tsoukalas, D. (2017). Coalescence of cluster beam generated sub-2 nm bare Au nanoparticles and analysis of Au film growth parameters. Annalen der Physik, 530(2), (1700256). doi:10.1002/andp.201700256. ISSN 0003-3804

© 2017 by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim In this work is presented the growth model for Au films grown on a carbon substrate at room temperature by using as building blocks Au nanoparticles (NPs) with 1.4 nm mean size generated via remo... Read More

Reversible optical switching memristors with tunable STDP synaptic plasticity: a route to hierarchical control in artificial intelligent systems (2017)
Journal Article
Jaafar, A. H., Gray, R. J., Verrelli, E., O'Neill, M., Kelly, S. M., & Kemp, N. T. (2017). Reversible optical switching memristors with tunable STDP synaptic plasticity: a route to hierarchical control in artificial intelligent systems. Nanoscale, 9(43), 17091-17098. doi:10.1039/c7nr06138b

© 2017 The Royal Society of Chemistry. Optical control of memristors opens the route to new applications in optoelectronic switching and neuromorphic computing. Motivated by the need for reversible and latched optical switching we report on the devel... Read More

Dual wavelength (ultraviolet and green) photodetectors using solution processed zinc oxide nanoparticles (2017)
Journal Article
O'Neill, M., Ibrahem, M. A., Verrelli, E., Lai, K. T., Kyriakou, G., Lee, A. F., …O’Neill, M. (2017). Dual wavelength (ultraviolet and green) photodetectors using solution processed zinc oxide nanoparticles. ACS applied materials & interfaces, 9(42), (36971-36979). doi:10.1021/acsami.7b08092. ISSN 1944-8244

Narrow-band photoconductivity with a spectral width of 0.16 eV is obtained from solution-processed colloidal ZnO nanocrystals beneath the band-edge at 2.25 eV. A new model involving electron transfer from deep defects to discrete shallow donors is in... Read More

Large dopant dependence of the current limiting properties of intrinsic conducting polymer surge protection devices (2016)
Journal Article
Jabarullah, N. H., Gee, A., Kemp, N. T., Verrelli, E., Golden, J. H., Mauldin, C., & Navarro, L. A. (in press). Large dopant dependence of the current limiting properties of intrinsic conducting polymer surge protection devices. RSC advances, 6(89), (85710-85717). doi:10.1039/c6ra18549e. ISSN 2046-2069

New two terminal surge protection devices based on intrinsic conducting polymers are demonstrated to be strongly affected by the dopant molecule type. Thermogravimetric analysis combined with current–voltage studies show a causal link between the dop... Read More

Super hydrophobic SAM modified electrodes for enhanced current limiting properties in intrinsic conducting polymer surge protection devices (2015)
Journal Article
Kemp, N. T., Madianos, L. M., Golden, J. H., Navarro, L. A., Jabarullah, N. H., Kemp, N., …Navarro, L. (2015). Super hydrophobic SAM modified electrodes for enhanced current limiting properties in intrinsic conducting polymer surge protection devices. Langmuir : the ACS journal of surfaces and colloids, 31(22), 6253-6264. doi:10.1021/acs.langmuir.5b00686

Surface interface engineering using superhydrophobic gold electrodes made with 1-dodecanethiol self-assembled monolayer (SAM) has been used to enhance the current limiting properties of novel surge protection devices based on the intrinsic conducting... Read More

Microwave oven fabricated hybrid memristor devices for non-volatile memory storage (2014)
Journal Article
O’Neill, M., Verrelli, E., Gray, R. J., Kelly, S. M., O'Neill, M., & Kemp, N. T. (2014). Microwave oven fabricated hybrid memristor devices for non-volatile memory storage. Materials Research Express, 1(4), doi:10.1088/2053-1591/1/4/046305. ISSN 2053-1591

© 2014 IOP Publishing Ltd. Novel hybrid non-volatile memories made using an ultra-fast microwave heating method are reported for the first time. The devices, consisting of aligned ZnO nanorods embedded in poly (methyl methacrylate), require no formin... Read More

Novel conducting polymer current limiting devices for low cost surge protection applications (2014)
Journal Article
Jabarullah, N. H., Verrelli, E., Mauldin, C., Navarro, L. A., Golden, J., Madianos, L., …Kemp, N. T. (2014). Novel conducting polymer current limiting devices for low cost surge protection applications. Journal of applied physics, 116(16), (164501). doi:10.1063/1.4899246. ISSN 0021-8979

We report on the development of novel intrinsic conducting polymer two terminal surge protection devices. These resettable current limiting devices consist of polyaniline nanofibres doped with methane sulphonic acid electrochemically deposited betwee... Read More

Cluster beam synthesis of metal and metal-oxide nanoparticles for emerging memories (2014)
Journal Article
Verrelli, E., & Tsoukalas, D. (2014). Cluster beam synthesis of metal and metal-oxide nanoparticles for emerging memories. Solid-state electronics, 101, 95-105. doi:10.1016/j.sse.2014.06.017

© 2014 Elsevier Ltd. All rights reserved. In this work we present results concerning the cluster beam synthesis of metal and metal-oxide nanoparticles together with their applications in emerging memories like nanoparticle Flash memories and resistiv... Read More