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Search for "field emission" in Full Text gives 288 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Sensing behavior of flower-shaped MoS2 nanoflakes: case study with methanol and xylene

  • Maryam Barzegar,
  • Masoud Berahman and
  • Azam Iraji zad

Beilstein J. Nanotechnol. 2018, 9, 608–615, doi:10.3762/bjnano.9.57

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  • using X-ray diffraction, Brunauer–Emmett–Teller surface area measurements, elemental analysis using energy dispersive X-ray spectroscopy, and field-emission scanning electron microscopy. The gas sensing characteristics were evaluated under exposure to various concentrations of xylene and methanol vapors
  • for several times and then dried under vacuum at 45 °C overnight. Characterization X-ray diffraction (XRD) patterns were obtained with an X-ray diffractometer (Shimadzu XRD-6000, Cu Kα radiation) and energy dispersive X-ray (EDX) spectra and sample morphology were characterized by field-emission
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Published 16 Feb 2018

Single-step process to improve the mechanical properties of carbon nanotube yarn

  • Maria Cecilia Evora,
  • Xinyi Lu,
  • Nitilaksha Hiremath,
  • Nam-Goo Kang,
  • Kunlun Hong,
  • Roberto Uribe,
  • Gajanan Bhat and
  • Jimmy Mays

Beilstein J. Nanotechnol. 2018, 9, 545–554, doi:10.3762/bjnano.9.52

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  • which electron and ion beam can be used simultaneously. The FIB is generated from a gallium liquid metal ion source with resolution of 7 nm at 30 keV acceleration voltages. The e-beam is generated from field emission gun electron source with high resolution SEM 1 nm at 15 keV and 1.9 nm at 1 keV
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Published 13 Feb 2018

Facile synthesis of ZnFe2O4 photocatalysts for decolourization of organic dyes under solar irradiation

  • Arjun Behera,
  • Debasmita Kandi,
  • Sanjit Manohar Majhi,
  • Satyabadi Martha and
  • Kulamani Parida

Beilstein J. Nanotechnol. 2018, 9, 436–446, doi:10.3762/bjnano.9.42

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  • -maximum of the diffraction peak) [27]. The XRD pattern of the ZFO mixed oxide shows peaks at 2θ values of 29.7, 35.1, 42.7, 53.7, 56.4, 62.0, and 73.4ο which correspond to (220), (311), (400), (422), (333), (440) and (533) crystal planes of ZFO crystal structure. FESEM Field-emission scanning electron
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Published 05 Feb 2018

Engineering of oriented carbon nanotubes in composite materials

  • Razieh Beigmoradi,
  • Abdolreza Samimi and
  • Davod Mohebbi-Kalhori

Beilstein J. Nanotechnol. 2018, 9, 415–435, doi:10.3762/bjnano.9.41

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  • materials should be higher than that of less-aligned CNTs. Figure 22 shows field emission (FE)-SEM micrographs of two CNT samples with random and aligned orientation and their polarized Raman spectra at 0° and 90° (0° related to the polarization direction of the laser light where it is parallel to the CNT
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Published 05 Feb 2018

Electron interaction with copper(II) carboxylate compounds

  • Michal Lacko,
  • Peter Papp,
  • Iwona B. Szymańska,
  • Edward Szłyk and
  • Štefan Matejčík

Beilstein J. Nanotechnol. 2018, 9, 384–398, doi:10.3762/bjnano.9.38

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  • -induced deformation, and electromigration resistance which is higher than for aluminum [24][25][26][27]. Copper nanostructures, especially nanowires, are applied in opto-electronic devices, solar cells, field-emission displays, catalysis, electronic skins, and sensor devices. Moreover, they can find
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Published 01 Feb 2018

Sugarcane juice derived carbon dot–graphitic carbon nitride composites for bisphenol A degradation under sunlight irradiation

  • Lan Ching Sim,
  • Jing Lin Wong,
  • Chen Hong Hak,
  • Jun Yan Tai,
  • Kah Hon Leong and
  • Pichiah Saravanan

Beilstein J. Nanotechnol. 2018, 9, 353–363, doi:10.3762/bjnano.9.35

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  • the removal of BPA, mainly because the CDs act as a photosensitizer to extend the light harvesting region. Results and Discussion Field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) Figure 1a shows a field emission scanning electron microscopy (FESEM) image
  • composites [77]. The scavenging test was carried out for 2 h under the solar radiation and the sample was collected for HPLC analysis. Field emission scanning electron microscopy (FESEM) images of (a) g-C3N4, (b) CD/g-C3N4(0.1), (c) CD/g-C3N4(0.2), and (d) CD/g-C3N4(0.5) composites. (e) TEM image and (f
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Published 30 Jan 2018

Review: Electrostatically actuated nanobeam-based nanoelectromechanical switches – materials solutions and operational conditions

  • Liga Jasulaneca,
  • Jelena Kosmaca,
  • Raimonds Meija,
  • Jana Andzane and
  • Donats Erts

Beilstein J. Nanotechnol. 2018, 9, 271–300, doi:10.3762/bjnano.9.29

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  • used to anneal nanowires for enhancing electrical and field emission properties [100]. Current densities higher than 10 nA/nm2 were reported to be applicable for Joule heating induced local welding of Ag (12 nA/nm2) [101] and Pt (up to 14.5 nA/nm2) [102][103] nanowires, as well as for welding of
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Published 25 Jan 2018

Bombyx mori silk/titania/gold hybrid materials for photocatalytic water splitting: combining renewable raw materials with clean fuels

  • Stefanie Krüger,
  • Michael Schwarze,
  • Otto Baumann,
  • Christina Günter,
  • Michael Bruns,
  • Christian Kübel,
  • Dorothée Vinga Szabó,
  • Rafael Meinusch,
  • Verónica de Zea Bermudez and
  • Andreas Taubert

Beilstein J. Nanotechnol. 2018, 9, 187–204, doi:10.3762/bjnano.9.21

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  • TEM with a LaB6 cathode operated at 120 kV. High resolution transmission electron microscopy (HRTEM) was done using an aberration corrected Titan 80-300 (FEI, Eindhoven, The Netherlands) with field emission gun, operated at 300 kV. Scanning transmission electron microscopy (STEM) and chemical analysis
  • were done on a Tecnai F20 ST (FEI, Eindhoven, The Netherlands) field emission TEM equipped with an Orius SC600 CCD-camera and a S-UTW EDX detector (EDAX, Mahwah, NJ, USA) operated at 200 kV. For EDXS the instrument was in scanning transmission mode and the α-tilt of the samples was set to 20°. Scanning
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Published 17 Jan 2018

Gas-sensing behaviour of ZnO/diamond nanostructures

  • Marina Davydova,
  • Alexandr Laposa,
  • Jiri Smarhak,
  • Alexander Kromka,
  • Neda Neykova,
  • Josef Nahlik,
  • Jiri Kroutil,
  • Jan Drahokoupil and
  • Jan Voves

Beilstein J. Nanotechnol. 2018, 9, 22–29, doi:10.3762/bjnano.9.4

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  • [30]. The resulting morphologies of structured NCD films and ZnO NRs were characterized by field-emission scanning electron microscopy (FE-SEM, Merlin, ZEISS). Raman spectroscopy measurements were carried out at room temperature using a Renishaw InVia Raman Microscope with the following conditions
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Published 03 Jan 2018

Facile synthesis of silver/silver thiocyanate (Ag@AgSCN) plasmonic nanostructures with enhanced photocatalytic performance

  • Xinfu Zhao,
  • Dairong Chen,
  • Abdul Qayum,
  • Bo Chen and
  • Xiuling Jiao

Beilstein J. Nanotechnol. 2017, 8, 2781–2789, doi:10.3762/bjnano.8.277

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  • comparison, the pure AgSCN nanomaterial (labeled as M0) was also prepared using the same procedure as preparing AgSCN with a small amount of Ag except the addition of N2H4·H2O. Characterization The morphology and microstructure of the samples were characterized using a field-emission scanning electron
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Published 22 Dec 2017

The rational design of a Au(I) precursor for focused electron beam induced deposition

  • Ali Marashdeh,
  • Thiadrik Tiesma,
  • Niels J. C. van Velzen,
  • Sjoerd Harder,
  • Remco W. A. Havenith,
  • Jeff T. M. De Hosson and
  • Willem F. van Dorp

Beilstein J. Nanotechnol. 2017, 8, 2753–2765, doi:10.3762/bjnano.8.274

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  • reservoir or the Al crucible of an FEI gas injection system (GIS) in Ar or N2 atmosphere. Electron microscopy Crystals of ClAuCO, ClAuPMe3, ClAuPEt3 and MeAuPMe3 were inserted in the sample chamber of a Philips XL30 environmental scanning electron microscope (SEM), equipped with a field-emission gun and an
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Published 20 Dec 2017

Patterning of supported gold monolayers via chemical lift-off lithography

  • Liane S. Slaughter,
  • Kevin M. Cheung,
  • Sami Kaappa,
  • Huan H. Cao,
  • Qing Yang,
  • Thomas D. Young,
  • Andrew C. Serino,
  • Sami Malola,
  • Jana M. Olson,
  • Stephan Link,
  • Hannu Häkkinen,
  • Anne M. Andrews and
  • Paul S. Weiss

Beilstein J. Nanotechnol. 2017, 8, 2648–2661, doi:10.3762/bjnano.8.265

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  • microscopy was performed using a JEOL JSM-6700F scanning electron microscope (JEOL, Inc., Tokyo, Japan) with a 750 V DC detector bias and 5 kV accelerating voltage. Field-emission gun variable pressure electron microscopy of Au on PDMS The scanning electron micrographs of Au–alkanethiolate monolayers on flat
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Published 08 Dec 2017

Enhanced photoelectrochemical water splitting performance using morphology-controlled BiVO4 with W doping

  • Xin Zhao and
  • Zhong Chen

Beilstein J. Nanotechnol. 2017, 8, 2640–2647, doi:10.3762/bjnano.8.264

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  • : The morphologies were observed using a field-emission scanning electron microscope (FESEM, JEOL JSM-7600F). Crystallinity was identified by X-ray diffraction (XRD) patterns (Shimadzu 6000 X-ray diffractometer) with Cu Kα radiation (λ = 0.154 nm), using a 2θ scan mode with a fixed incidence angle at 5
  • °. Elemental analysis was conducted by energy-dispersive X-ray spectroscopy (EDX) equipped on a field-emission scanning electron microscopy (FESEM, JEOL JSM-7600F). Light absorption was measured using a UV–visible spectrophotometer by measuring the reflectance and transmittance with an integrating sphere
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Published 07 Dec 2017

Localized growth of carbon nanotubes via lithographic fabrication of metallic deposits

  • Fan Tu,
  • Martin Drost,
  • Imre Szenti,
  • Janos Kiss,
  • Zoltan Kónya and
  • Hubertus Marbach

Beilstein J. Nanotechnol. 2017, 8, 2592–2605, doi:10.3762/bjnano.8.260

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  • S-4700 Type II cold field emission SEM instrument operated at 10–15 kV accelerating voltage with an integrated Röntec QX2 EDX detector. (a) Scheme of the electron beam induced deposition (EBID) process with Fe(CO)5 as precursor molecule, producing a point matrix of Fe deposits. (b) SEM micrograph of
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Published 05 Dec 2017

Direct writing of gold nanostructures with an electron beam: On the way to pure nanostructures by combining optimized deposition with oxygen-plasma treatment

  • Domagoj Belić,
  • Mostafa M. Shawrav,
  • Emmerich Bertagnolli and
  • Heinz D. Wanzenboeck

Beilstein J. Nanotechnol. 2017, 8, 2530–2543, doi:10.3762/bjnano.8.253

Graphical Abstract
  • well as in nanomedicine [30]. Many applications require precise positioning of Au structures on the nanoscale, e.g., for fabrication of interconnects [31][32] and field emission tips [33] or in direct writing of plasmonic and photonic nanostructures and devices [4][34][35][36][37][38][39][40]. We
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Published 29 Nov 2017

Comparing postdeposition reactions of electrons and radicals with Pt nanostructures created by focused electron beam induced deposition

  • Julie A. Spencer,
  • Michael Barclay,
  • Miranda J. Gallagher,
  • Robert Winkler,
  • Ilyas Unlu,
  • Yung-Chien Wu,
  • Harald Plank,
  • Lisa McElwee-White and
  • D. Howard Fairbrother

Beilstein J. Nanotechnol. 2017, 8, 2410–2424, doi:10.3762/bjnano.8.240

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  • identified and imaged by SEM. All of the effects of electrons and atomic hydrogen reported in this study were independent of the substrate on which the deposits were created. Deposits generated in the Auger system were imaged and analyzed ex situ using a cold-cathode field-emission SEM (JEOL 6700F, LEI
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Published 15 Nov 2017

Surfactant-induced enhancement of droplet adhesion in superhydrophobic soybean (Glycine max L.) leaves

  • Oliver Hagedorn,
  • Ingo Fleute-Schlachter,
  • Hans Georg Mainx,
  • Viktoria Zeisler-Diehl and
  • Kerstin Koch

Beilstein J. Nanotechnol. 2017, 8, 2345–2356, doi:10.3762/bjnano.8.234

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  • Stereoscan 200 (Cambridge Instruments GmbH, Dortmund) instrument or with a high-resolution field emission scanning electron microscope (FE-SEM, Gemini Supra 40VP, Carl Zeiss GmbH, Oberkochen, Germany), equipped with a cryo-preparation unit (Emitech K1250X, Gabler Instrumente GmbH, Germany), consisting of a
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Published 08 Nov 2017

Substrate and Mg doping effects in GaAs nanowires

  • Perumal Kannappan,
  • Nabiha Ben Sedrine,
  • Jennifer P. Teixeira,
  • Maria R. Soares,
  • Bruno P. Falcão,
  • Maria R. Correia,
  • Nestor Cifuentes,
  • Emilson R. Viana,
  • Marcus V. B. Moreira,
  • Geraldo M. Ribeiro,
  • Alfredo G. de Oliveira,
  • Juan C. González and
  • Joaquim P. Leitão

Beilstein J. Nanotechnol. 2017, 8, 2126–2138, doi:10.3762/bjnano.8.212

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  • performance Schottky field emission HR-FESEM Hitachi SU-70 microscope equipped with in-lens secondary-electron and backscattered-electron detectors. The crystalline structure of GaAs nanowires was investigated by grazing incidence X-ray diffraction (GID) carried out on a PANalytical X’Pert MRD diffractometer
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Published 11 Oct 2017

In situ controlled rapid growth of novel high activity TiB2/(TiB2–TiN) hierarchical/heterostructured nanocomposites

  • Jilin Wang,
  • Hejie Liao,
  • Yuchun Ji,
  • Fei Long,
  • Yunle Gu,
  • Zhengguang Zou,
  • Weimin Wang and
  • Zhengyi Fu

Beilstein J. Nanotechnol. 2017, 8, 2116–2125, doi:10.3762/bjnano.8.211

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  • characterized using powder X-ray diffraction (XRD) with Cu Kα radiation. The morphology and microstructure of the samples were investigated using a Hitachi S4800 field emission scanning electron microscope (FSEM), a Philips CM12 transmission electron microscope (TEM), a JEOL JEM-2100F high-resolution
  • samples was measured with the help of the Netzsch STA 449F3 thermogravimetric and differential scanning calorimetry analyzer (TG-DSC) at a heating rate of 10 °C/min. Typical field emission scanning electron microscope (FSEM) images (a, b), EDX spectra (c) and XRD pattern (d) of the as-synthesized TiB2
  • samples. Moreover, based on the obtained experimental results and previous work, the possible chemical reactions as well as the appropriate growth mechanism of the TiB2/(TiB2–TiN) hierarchical/heterostructured nanocomposites were also discussed. Results and Discussion Figure 1a,b gives the typical field
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Published 10 Oct 2017

Magnetic properties of optimized cobalt nanospheres grown by focused electron beam induced deposition (FEBID) on cantilever tips

  • Soraya Sangiao,
  • César Magén,
  • Darius Mofakhami,
  • Grégoire de Loubens and
  • José María De Teresa

Beilstein J. Nanotechnol. 2017, 8, 2106–2115, doi:10.3762/bjnano.8.210

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  • a probe-corrected FEI Titan 60-300 equipped with a high brightness field emission gun (X-FEG), a CEOS corrector for the condenser system and a Gatan Tridiem 866 ERS image filter/spectrometer. The EELS acquisition was performed with a convergence angle of 25 mrad, a collection semi-angle of around 60
  • further correction for thickness effects was applied. Off-axis electron holography has been carried out in an FEI Titan Cube 60-300 equipped with a Schottky field emission gun (S-FEG), a CEOS corrector for the objective lens and a motorized electrostatic biprism. The experiments have been performed in
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Published 09 Oct 2017

A comparative study of the nanoscale and macroscale tribological attributes of alumina and stainless steel surfaces immersed in aqueous suspensions of positively or negatively charged nanodiamonds

  • Colin K. Curtis,
  • Antonin Marek,
  • Alex I. Smirnov and
  • Jacqueline Krim

Beilstein J. Nanotechnol. 2017, 8, 2045–2059, doi:10.3762/bjnano.8.205

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  • method to several literature approaches yielded roughness parameters within experimental error of each other [33]). Scanning electron microscope imaging was performed using an FEI Verios 460L field-emission microscope. A high resolution through-the-lens detector was used in a beam-deceleration mode for
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Published 29 Sep 2017

Systematic control of α-Fe2O3 crystal growth direction for improved electrochemical performance of lithium-ion battery anodes

  • Nan Shen,
  • Miriam Keppeler,
  • Barbara Stiaszny,
  • Holger Hain,
  • Filippo Maglia and
  • Madhavi Srinivasan

Beilstein J. Nanotechnol. 2017, 8, 2032–2044, doi:10.3762/bjnano.8.204

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  • samples was analyzed using a JEOL 6340F field emission scanning electron microscope (FESEM) in secondary electron imaging mode. The accelerating voltage was set to 5 kV. The electrodes were prepared by mixing 40% of as-synthesized active iron oxide powder with 40% of conductive additives (Super P Li
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Published 28 Sep 2017

Fabrication of carbon nanospheres by the pyrolysis of polyacrylonitrile–poly(methyl methacrylate) core–shell composite nanoparticles

  • Dafu Wei,
  • Youwei Zhang and
  • Jinping Fu

Beilstein J. Nanotechnol. 2017, 8, 1897–1908, doi:10.3762/bjnano.8.190

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  • element contents of various samples were determined using an Elementar Vario EL III element analysis system. The morphology of the various polymer nanoparticles and carbon nanospheres was observed by transmission electron microscopy (TEM) and field emission scanning electron microscopy (FESEM). The carbon
  • observations were performed on a Hitachi S-4800 field emission scanning electron microscope. Powder X-ray diffraction (XRD) patterns were recorded using an X-ray diffractometer (Model D8 Advance, Bruker AXS) with Cu Kα radiation. Low-temperature nitrogen adsorption experiments were performed at the boiling
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Published 11 Sep 2017

Self-assembly of chiral fluorescent nanoparticles based on water-soluble L-tryptophan derivatives of p-tert-butylthiacalix[4]arene

  • Pavel L. Padnya,
  • Irina A. Khripunova,
  • Olga A. Mostovaya,
  • Timur A. Mukhametzyanov,
  • Vladimir G. Evtugyn,
  • Vyacheslav V. Vorobev,
  • Yuri N. Osin and
  • Ivan I. Stoikov

Beilstein J. Nanotechnol. 2017, 8, 1825–1835, doi:10.3762/bjnano.8.184

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  • in a transmission electron microscope. The analysis was performed at an accelerating voltage of 100 kV in TEM mode. Determination of particle diameter by SEM Additional measurements of the particle diameter were carried out by using a field-emission high-resolution scanning electron microscope (SEM
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Published 04 Sep 2017

Synthesis and functionalization of NaGdF4:Yb,Er@NaGdF4 core–shell nanoparticles for possible application as multimodal contrast agents

  • Dovile Baziulyte-Paulaviciene,
  • Vitalijus Karabanovas,
  • Marius Stasys,
  • Greta Jarockyte,
  • Vilius Poderys,
  • Simas Sakirzanovas and
  • Ricardas Rotomskis

Beilstein J. Nanotechnol. 2017, 8, 1815–1824, doi:10.3762/bjnano.8.183

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  • particle morphology was characterized using a field emission scanning electron microscope (SU-70 Hitachi, FE-SEM) at an acceleration voltage of 10 kV. The UC luminescence spectra were recorded using an Edinburgh Instruments FLS980 spectrometer equipped with a double emission monochromator, a cooled (−20 °C
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Published 01 Sep 2017
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