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Search for "electrical properties" in Full Text gives 212 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Manufacturing and investigation of physical properties of polyacrylonitrile nanofibre composites with SiO2, TiO2 and Bi2O3 nanoparticles

  • Tomasz Tański,
  • Wiktor Matysiak and
  • Barbara Hajduk

Beilstein J. Nanotechnol. 2016, 7, 1141–1155, doi:10.3762/bjnano.7.106

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  • the ellipsometry analysis of the produced samples. The analysis of the electrical properties, using both of these methods, clearly indicated potentially better results by using, as the dielectric material, nanofibres of PAN/TiO2 and PAN/Bi2O3, rather than nanofibres reinforced with SiO2 nanoparticles
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Published 05 Aug 2016

NO gas sensing at room temperature using single titanium oxide nanodot sensors created by atomic force microscopy nanolithography

  • Li-Yang Hong and
  • Heh-Nan Lin

Beilstein J. Nanotechnol. 2016, 7, 1044–1051, doi:10.3762/bjnano.7.97

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  • Figure S1 in Supporting Information File 1.) We discussed the electrical properties of the sensors in our previous report [32]. A TiOx ND behaves like an n-type semiconductor due to oxygen vacancies. When NO molecules (or O2 molecules under ambient environment) adsorb on the ND surface, they become
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Published 20 Jul 2016

Reconstitution of the membrane protein OmpF into biomimetic block copolymer–phospholipid hybrid membranes

  • Matthias Bieligmeyer,
  • Franjo Artukovic,
  • Stephan Nussberger,
  • Thomas Hirth,
  • Thomas Schiestel and
  • Michaela Müller

Beilstein J. Nanotechnol. 2016, 7, 881–892, doi:10.3762/bjnano.7.80

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  • ). Pure DPhPC vesicles prepared under similar conditions were significantly smaller than those composed of PIPEO and DPhPC (Figure 2B). They revealed completely different morphologies than the lipopolymersomes. Using impedance spectroscopy, we attempted to gain insight into the electrical properties of
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Published 21 Jun 2016

Rigid multipodal platforms for metal surfaces

  • Michal Valášek,
  • Marcin Lindner and
  • Marcel Mayor

Beilstein J. Nanotechnol. 2016, 7, 374–405, doi:10.3762/bjnano.7.34

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  • nanolithography and scanning-probe techniques enable one to study the electrical properties of single molecules [8][9][10][11]. Current methods and approaches to characterize the behavior of single molecules in metal–molecule–metal junctions [12] are so varied. The most common measurements on single molecular
  • electrical properties [20]. Moreover, transistor-type devices from the same molecule have displayed fundamentally different transport characteristics [21][22]. The organization of the molecules within the junction is usually based on some sort of self-assembly using chemisorption or physisorption methods to
  • applications in the molecular electronics. Therefore, finding a compromise between a proper geometry of multipodal molecules without simultaneous hindering the electrical properties remains a scientific challenge. To circumvent this behavior, several research groups utilized rigid conjugated platforms based on
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Published 08 Mar 2016

Characterisation of thin films of graphene–surfactant composites produced through a novel semi-automated method

  • Nik J. Walch,
  • Alexei Nabok,
  • Frank Davis and
  • Séamus P. J. Higson

Beilstein J. Nanotechnol. 2016, 7, 209–219, doi:10.3762/bjnano.7.19

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  • and development by Novoselov et al. [1] graphene has been of great interest to the scientific community due to its interesting optical and electrical properties. Graphene is defined as a single layer of sp2-hybridised carbon with no third dimension. The double-bonded structure of graphene is
  • responsible for the electrical properties of the material as the movement of π-bonds between adjacent carbon atoms can be used to transmit an electrical current. Because of this electrical activity in particular, graphene is being examined as a base material in a number of different applications including
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Published 08 Feb 2016

Synthesis and applications of carbon nanomaterials for energy generation and storage

  • Marco Notarianni,
  • Jinzhang Liu,
  • Kristy Vernon and
  • Nunzio Motta

Beilstein J. Nanotechnol. 2016, 7, 149–196, doi:10.3762/bjnano.7.17

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  • , thermal and electrical properties of the different allotrope forms are directly correlated to their structure and hybridization state, opening up the possibility to use the same material for a wide range of applications [19]. Herein, the synthesis and application of fullerenes, CNTs and graphene will be
  • electrical, mechanical and thermal properties, CNTs are not the only carbon nanomaterial that could play a major role in replacing conventional materials for energy generation and storage devices. In particular, the discovery of the electrical properties of graphene, another allotrope carbon, by Geim
  • , Novoselov and co-workers [60] opened up the potential of this interesting material to being employed in real-world applications. In fact, graphene shows similar or even better mechanical, thermal and electrical properties than CNTs. Moreover, from an engineering point of view, the production and the usage
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Published 01 Feb 2016

Charge injection and transport properties of an organic light-emitting diode

  • Peter Juhasz,
  • Juraj Nevrela,
  • Michal Micjan,
  • Miroslav Novota,
  • Jan Uhrik,
  • Lubica Stuchlikova,
  • Jan Jakabovic,
  • Ladislav Harmatha and
  • Martin Weis

Beilstein J. Nanotechnol. 2016, 7, 47–52, doi:10.3762/bjnano.7.5

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  • steady-state current density–voltage characteristics [5][6], or measurement in time- or frequency-domain, such as transient currents [7] and impedance spectroscopy [8][9]. Furthermore, the measurements can be extended by the temperature dependence of electrical properties which reveal the thermally
  • activated charge behavior [10]. It should be noted here that the electrical properties of organic devices are strongly dependent of device fabrication. Therefore, a detailed comparison of results obtained at various devices is not applicable although identical materials/structures are used. Hence, the
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Published 14 Jan 2016

Large area scanning probe microscope in ultra-high vacuum demonstrated for electrostatic force measurements on high-voltage devices

  • Urs Gysin,
  • Thilo Glatzel,
  • Thomas Schmölzer,
  • Adolf Schöner,
  • Sergey Reshanov,
  • Holger Bartolf and
  • Ernst Meyer

Beilstein J. Nanotechnol. 2015, 6, 2485–2497, doi:10.3762/bjnano.6.258

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  • local analysis of the electrical properties of conducting and semiconducting materials down to the nanometre scale [5][6][7][8][9][10][11][12]. These techniques rapidly emerged [13][14][15][16][17] and were developed further on resulting in more sophisticated methods such as scanning spreading
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Published 28 Dec 2015

Blue and white light emission from zinc oxide nanoforests

  • Nafisa Noor,
  • Luca Lucera,
  • Thomas Capuano,
  • Venkata Manthina,
  • Alexander G. Agrios,
  • Helena Silva and
  • Ali Gokirmak

Beilstein J. Nanotechnol. 2015, 6, 2463–2469, doi:10.3762/bjnano.6.255

Graphical Abstract
  • voltage and observed as multiple, brief flashes during long excitations. The emitted light seemed to follow a changing percolation path between the contacts (Figure 3, multimedia view) [20] as the materials experience changes in thermal and electrical properties over time due to the high electrical stress
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Published 23 Dec 2015

Self-organization of gold nanoparticles on silanated surfaces

  • Htet H. Kyaw,
  • Salim H. Al-Harthi,
  • Azzouz Sellai and
  • Joydeep Dutta

Beilstein J. Nanotechnol. 2015, 6, 2345–2353, doi:10.3762/bjnano.6.242

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  • deposition of APTES molecules [7]. Thus, NH2-terminated APTES deposition on any substrate is extremely important for further surface modification. Gold nanoparticles (AuNPs) have unique physical, chemical and electrical properties that differ from the bulk due to the quantum confinement effects in small
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Published 10 Dec 2015

Negative differential electrical resistance of a rotational organic nanomotor

  • Hatef Sadeghi,
  • Sara Sangtarash,
  • Qusiy Al-Galiby,
  • Rachel Sparks,
  • Steven Bailey and
  • Colin J. Lambert

Beilstein J. Nanotechnol. 2015, 6, 2332–2337, doi:10.3762/bjnano.6.240

Graphical Abstract
  • nanotubes [27][28] with very low interwall friction [29][30][31][32][33][34] lead to novel electrical properties [35][36][37][38][39][40]. These examples illustrate how an electric field can induce motion and also how a motion-induced change of geometry can affect electrical properties. In what follows, our
  • aim is to demonstrate that this coupling between a controlled geometry and electrical properties can lead to desirable nonlinear current–voltage relations and negative differential resistance (NDR). As a specific example that demonstrates the general principle, we analyse the molecular-scale NEM shown
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Published 08 Dec 2015

A single-source precursor route to anisotropic halogen-doped zinc oxide particles as a promising candidate for new transparent conducting oxide materials

  • Daniela Lehr,
  • Markus R. Wagner,
  • Johanna Flock,
  • Julian S. Reparaz,
  • Clivia M. Sotomayor Torres,
  • Alexander Klaiber,
  • Thomas Dekorsy and
  • Sebastian Polarz

Beilstein J. Nanotechnol. 2015, 6, 2161–2172, doi:10.3762/bjnano.6.222

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  • ], most attention was devoted to n-doping via substitution in the cation (Zn2+) lattice. The most prominent example known to date is aluminium-doped ZnO (AZO) [21][22]. AZO contains much more common elements compared to ITO, however, it cannot yet compete regarding its electrical properties. Much less
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Published 18 Nov 2015

High Ion/Ioff current ratio graphene field effect transistor: the role of line defect

  • Mohammad Hadi Tajarrod and
  • Hassan Rasooli Saghai

Beilstein J. Nanotechnol. 2015, 6, 2062–2068, doi:10.3762/bjnano.6.210

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  • of the right and the left contact, respectively. Results and Discussion In this section, the carrier transport and electrical properties of ELD-GNRFET are reported. Figure 1a is the schematic diagram of the transistor. The transistor device contains a top gate structure of Al2O3 (εr = 9.8) gate oxide
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Published 23 Oct 2015

Nitrogen-doped graphene films from chemical vapor deposition of pyridine: influence of process parameters on the electrical and optical properties

  • Andrea Capasso,
  • Theodoros Dikonimos,
  • Francesca Sarto,
  • Alessio Tamburrano,
  • Giovanni De Bellis,
  • Maria Sabrina Sarto,
  • Giuliana Faggio,
  • Angela Malara,
  • Giacomo Messina and
  • Nicola Lisi

Beilstein J. Nanotechnol. 2015, 6, 2028–2038, doi:10.3762/bjnano.6.206

Graphical Abstract
  • alters the catalytic activity of copper [37][56]. The two liquid precursors could be thus selected to be used at a specific temperature to obtain graphene films of different thickness. The electrical properties of the graphene films grown by pyridine-CVD are reported in Table 2. The electrical
  • temperature are reported (obtained with specific hydrogen flows, as indicated in the table). As in the case of pyridine-CVD, the optical transmittance decreases with the temperature, as does the sheet resistance. To account for the intrinsic electrical properties of the graphene films, without reference to
  • ethanol-CVD. Optical transmittance and thickness (t) of pyridine-CVD graphene. Electrical properties of the pyridine-CVD graphene. Electrical properties of the ethanol-CVD graphene. Supporting Information In the Supporting Information the results of the Raman spectral fitting for pyridine- and ethanol
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Published 14 Oct 2015

Radiation losses in the microwave Ku band in magneto-electric nanocomposites

  • Talwinder Kaur,
  • Sachin Kumar,
  • Jyoti Sharma and
  • A. K. Srivastava

Beilstein J. Nanotechnol. 2015, 6, 1700–1707, doi:10.3762/bjnano.6.173

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  • ], electrical properties, dielectric properties [25][26], and mechanical properties [27] are better than those of the bulk material. Hexaferrite is also extensively studied by researchers for radiation absorption which is based on magnetic resonance phenomena because of the anisotropy field [10][28]. In this
  • hexaferrite alone. This may be due to the electrical properties of polyaniline. Multiple reflections, due to the embedding of ferrite in polyaniline and polarization, because of electron hopping between ferric ions and magnetic losses collectively, increase the reflection loss. For radiation loss measurements
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Published 07 Aug 2015

Electrical properties and mechanical stability of anchoring groups for single-molecule electronics

  • Riccardo Frisenda,
  • Simge Tarkuç,
  • Elena Galán,
  • Mickael L. Perrin,
  • Rienk Eelkema,
  • Ferdinand C. Grozema and
  • Herre S. J. van der Zant

Beilstein J. Nanotechnol. 2015, 6, 1558–1567, doi:10.3762/bjnano.6.159

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  • , in order to explore how the nature of the molecule–electrode contact influences the conductance measurements. The electrical properties were studied by measuring the conductance and current–voltage characteristics as a function of electrode distance. A statistical analysis of the I–Vs with a fit to a
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Published 17 Jul 2015

Current–voltage characteristics of manganite–titanite perovskite junctions

  • Benedikt Ifland,
  • Patrick Peretzki,
  • Birte Kressdorf,
  • Philipp Saring,
  • Andreas Kelling,
  • Michael Seibt and
  • Christian Jooss

Beilstein J. Nanotechnol. 2015, 6, 1467–1484, doi:10.3762/bjnano.6.152

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  • , mixed halides. The constituents for manganite oxide are: A = rare earth, alkali metal, mixed composition, B = Mn, and X = O. The organic/inorganic halide perovskites exhibit good optical absorption and favorable electrical properties, thus offering the possibility for use in high efficiency solar cells
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Published 07 Jul 2015

DNA–melamine hybrid molecules: from self-assembly to nanostructures

  • Rina Kumari,
  • Shib Shankar Banerjee,
  • Anil K. Bhowmick and
  • Prolay Das

Beilstein J. Nanotechnol. 2015, 6, 1432–1438, doi:10.3762/bjnano.6.148

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  • molecules with DNA, in particular, heterocyclic compounds that can offer attractive options to home nitrogen, sulfur or other interesting heteroatoms. Heterocyclic compounds could potentially be used to tune the molecular and electrical properties of a self-assembled system on the nanoscale. Moreover, being
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Published 30 Jun 2015

Electron and heat transport in porphyrin-based single-molecule transistors with electro-burnt graphene electrodes

  • Hatef Sadeghi,
  • Sara Sangtarash and
  • Colin J. Lambert

Beilstein J. Nanotechnol. 2015, 6, 1413–1420, doi:10.3762/bjnano.6.146

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  • nanometre-sized gap. The molecule can be placed in this gap, enabling the study of its electrical properties. Moreover, the ability to place a gate electrode beneath the gap makes this an excellent platform for tuning and studying quantum effects in single-molecule transport. Due to the combustion process
  • Green’s function of the electrodes, respectively. GR = (ES−HS−ΣL−ΣR)−1 is the retarded Green’s function, where HS is the Hamiltonian of the scattering region and S is the overlap matrix. Electrical properties: In a similar manner as described in [23], using the obtained transmission coefficient, T(E), the
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Published 26 Jun 2015

Electrical characterization of single molecule and Langmuir–Blodgett monomolecular films of a pyridine-terminated oligo(phenylene-ethynylene) derivative

  • Henrry M. Osorio,
  • Santiago Martín,
  • María Carmen López,
  • Santiago Marqués-González,
  • Simon J. Higgins,
  • Richard J. Nichols,
  • Paul J. Low and
  • Pilar Cea

Beilstein J. Nanotechnol. 2015, 6, 1145–1157, doi:10.3762/bjnano.6.116

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  • -aggregates. Scanning tunneling microscopy (STM), in particular the “STM touch-to-contact” method, was used to determine the electrical properties of LB films of 1. From these STM studies symmetrical I–V curves were obtained. A junction conductance of 5.17 × 10−5 G0 results from the analysis of the
  • molecular junctions [37][38], exciton migration control [39], top-contact metallization [24][40][41], optical and opto-electronic applications [42][43], modulation of the electrical properties of the junction [24], inclusion of a metal atom in the organic structure of a molecular wire [44], and electrical
  • synthesis or deployment as a contact group (cf. thioacetate, –SAc, commonly used to prepare thiolate-contacted junctions). These promising features and results from single molecule studies have motivated us to explore the electrical properties of a monomolecular Langmuir–Blodgett film of 1 (Figure 1), and
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Published 11 May 2015

Observing the morphology of single-layered embedded silicon nanocrystals by using temperature-stable TEM membranes

  • Sebastian Gutsch,
  • Daniel Hiller,
  • Jan Laube,
  • Margit Zacharias and
  • Christian Kübel

Beilstein J. Nanotechnol. 2015, 6, 964–970, doi:10.3762/bjnano.6.99

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  • generation photovoltaics [1][2], light emitting diodes [3][4], lasers [5], but are also envisioned to be used as non-volatile memories [6][7][8][9][10]. The optical and electrical properties of ensembles of Si NCs are strongly influenced by the structural properties such as size distribution, separation
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Published 15 Apr 2015

Morphology control of zinc oxide films via polysaccharide-mediated, low temperature, chemical bath deposition

  • Florian Waltz,
  • Hans-Christoph Schwarz,
  • Andreas M. Schneider,
  • Stefanie Eiden and
  • Peter Behrens

Beilstein J. Nanotechnol. 2015, 6, 799–808, doi:10.3762/bjnano.6.83

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  • during the first CBD step, allow the formation of a more dense ZnO layer during the final CBD. Consequently, as the total material supply is limited, axial growth is diminished, that is, the films become thinner. Electrical properties of the films ZnO is a semiconductor with a direct bandgap of 3.37 eV
  • films grown in the first and in the subsequent CBD steps were deduced from cross section SEM micrographs. Electrical properties of ZnO films: comparison of the specific resistance and sheet resistance of ZnO films after the second CBD step. The films were grown with different addition times of HYA
  • achieved via doping of ZnO [50][51][52], which is not a topic covered in this work. Here, we use electrical conductivity data as an additional means to judge the quality of the films. In order to obtain reproducible and meaningful results, and to be able to compare the quality of our films, the electrical
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Published 24 Mar 2015

Simple approach for the fabrication of PEDOT-coated Si nanowires

  • Mingxuan Zhu,
  • Marielle Eyraud,
  • Judikael Le Rouzo,
  • Nadia Ait Ahmed,
  • Florence Boulc’h,
  • Claude Alfonso,
  • Philippe Knauth and
  • François Flory

Beilstein J. Nanotechnol. 2015, 6, 640–650, doi:10.3762/bjnano.6.65

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  • (a conductive, non-electroactive, and easily-polished substrate). This was followed by EDOT oxidation on SiNW substrates. Optical and electrical properties, as well as morphology and composition of the samples, were determined using spectroscopy, current density–voltage curves, scanning electron and
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Published 04 Mar 2015

Chains of carbon atoms: A vision or a new nanomaterial?

  • Florian Banhart

Beilstein J. Nanotechnol. 2015, 6, 559–569, doi:10.3762/bjnano.6.58

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  • bonds or only double bonds, lead to a variety of electrical properties, ranging from semiconducting to metallic. Furthermore, the strong covalent σ-bonds raise expectations of exceptional mechanical strength. Producing isolated chains of carbon atoms has remained a challenge for a long time, due to the
  • . Calculations are facilitated by the fact that chains consist of typically 10 atoms only and constitute very small systems as compared to two- or three-dimensional nanomaterials. Of high importance, however, is the nature of the contacts at the ends of the chains. The mechanical and electrical properties of
  • bandgap. Simulations show that a strain of 10% leads to a bandgap of 1.5–3.0 eV, depending on the approximation (DFT, GW) [19][23]. The electrical properties of chains can only be measured by contacts through single atoms. The bonding characteristics at this particular point are of paramount importance
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Published 25 Feb 2015

Filling of carbon nanotubes and nanofibres

  • Reece D. Gately and
  • Marc in het Panhuis

Beilstein J. Nanotechnol. 2015, 6, 508–516, doi:10.3762/bjnano.6.53

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  • well known that they can improve the mechanical and electrical properties of various dispersants [121][122][123][124]. However, the properties of the resulting materials prepared from dispersions of TCNSs filled with various materials have not been fully investigated. One interesting application area
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Published 19 Feb 2015
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