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Search for "photoelectron spectroscopy" in Full Text gives 299 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Tin dioxide nanomaterial-based photocatalysts for nitrogen oxide oxidation: a review

  • Viet Van Pham,
  • Hong-Huy Tran,
  • Thao Kim Truong and
  • Thi Minh Cao

Beilstein J. Nanotechnol. 2022, 13, 96–113, doi:10.3762/bjnano.13.7

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  • reports still proposed its photocatalytic behaviors partly based on •O2− species via the combination of experimental physicochemical analyses, such as electron spin resonance (ESR) spectroscopy, active species trapping experiments, valence band X-ray photoelectron spectroscopy (XPS), and diffuse
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Published 21 Jan 2022

Sputtering onto liquids: a critical review

  • Anastasiya Sergievskaya,
  • Adrien Chauvin and
  • Stephanos Konstantinidis

Beilstein J. Nanotechnol. 2022, 13, 10–53, doi:10.3762/bjnano.13.2

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Published 04 Jan 2022

Chemical vapor deposition of germanium-rich CrGex nanowires

  • Vladislav Dřínek,
  • Stanislav Tiagulskyi,
  • Roman Yatskiv,
  • Jan Grym,
  • Radek Fajgar,
  • Věra Jandová,
  • Martin Koštejn and
  • Jaroslav Kupčík

Beilstein J. Nanotechnol. 2021, 12, 1365–1371, doi:10.3762/bjnano.12.100

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  • -resolution transmission electron microscopy, scanning electron microscopy, electron dispersive X-ray analysis, selected area electron diffraction, and X-ray photoelectron spectroscopy, showed that unlike nanoballs and particles composed of crystalline germanium, the layer was made of chromium germanide CrGex
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Published 07 Dec 2021

Plasmon-enhanced photoluminescence from TiO2 and TeO2 thin films doped by Eu3+ for optoelectronic applications

  • Marcin Łapiński,
  • Jakub Czubek,
  • Katarzyna Drozdowska,
  • Anna Synak,
  • Wojciech Sadowski and
  • Barbara Kościelska

Beilstein J. Nanotechnol. 2021, 12, 1271–1278, doi:10.3762/bjnano.12.94

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  • CrossBeam 540 scanning electron microscope (SEM) operated at 2 kV was used. For microstructure analysis of the plasmonic structures, a TALOS F200X high-resolution transmission electron microscope (HRTEM) was used. The chemical composition of the luminescent layers was investigated by X-ray photoelectron
  • spectroscopy (XPS). Measurement was performed using Omicron Nanotechnology equipment at room temperature and under ultrahigh vacuum conditions, at a pressure below 1.1 × 10−6 Pa. A Mg Kα X-ray source was operated at 15 kV and 300 W. XPS analysis were performed using CASA XPS software package with Shirley
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Published 22 Nov 2021

The effect of cobalt on morphology, structure, and ORR activity of electrospun carbon fibre mats in aqueous alkaline environments

  • Markus Gehring,
  • Tobias Kutsch,
  • Osmane Camara,
  • Alexandre Merlen,
  • Hermann Tempel,
  • Hans Kungl and
  • Rüdiger-A. Eichel

Beilstein J. Nanotechnol. 2021, 12, 1173–1186, doi:10.3762/bjnano.12.87

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  • electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, elemental analysis, and inductively coupled plasma optical emission spectrometry (ICP-OES). In addition, the fibres were analysed in terms of their
  • , samples of 1 cm2 were cut from the fibre mats and fixed on a silicon crystal in a rotating sample holder. The scan range was limited to 10° to 80°, scanned with a step width of 0.01°. X-ray photoelectron spectroscopy (XPS) was performed with a Phi5000 VersaProbe II (ULVAC-Phi Inc., USA). Spectra were
  • , Electronics and Analytics (ZEA-3) of Forschungszentrum Jülich for performing the elemental analysis as well as X-ray photoelectron spectroscopy measurements and data analysis. Funding Funding by the German Federal Ministry of Education and Research (BMBF) project LuZi “Air–zinc batteries with innovative
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Published 19 Oct 2021

Irradiation-driven molecular dynamics simulation of the FEBID process for Pt(PF3)4

  • Alexey Prosvetov,
  • Alexey V. Verkhovtsev,
  • Gennady Sushko and
  • Andrey V. Solov’yov

Beilstein J. Nanotechnol. 2021, 12, 1151–1172, doi:10.3762/bjnano.12.86

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  • influence the rate of precursor molecule fragmentation. The chosen value of the deposited energy can be verified by comparing the dependence of surface coverage of precursor elements on the electron dose with the experimental data measured by means of X-ray photoelectron spectroscopy (XPS). Electron energy
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Published 13 Oct 2021

Impact of GaAs(100) surface preparation on EQE of AZO/Al2O3/p-GaAs photovoltaic structures

  • Piotr Caban,
  • Rafał Pietruszka,
  • Jarosław Kaszewski,
  • Monika Ożga,
  • Bartłomiej S. Witkowski,
  • Krzysztof Kopalko,
  • Piotr Kuźmiuk,
  • Katarzyna Gwóźdź,
  • Ewa Płaczek-Popko,
  • Krystyna Lawniczak-Jablonska and
  • Marek Godlewski

Beilstein J. Nanotechnol. 2021, 12, 578–592, doi:10.3762/bjnano.12.48

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  • ) and scanning electron microscopy (SEM) examinations were conducted to obtain structural details of the devices. X-ray photoelectron spectroscopy (XPS) with depth profiling was used to examine interface structure and changes in the elemental content and chemical bonds. The photoluminescence (PL
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Published 28 Jun 2021

Interface interaction of transition metal phthalocyanines with strontium titanate (100)

  • Reimer Karstens,
  • Thomas Chassé and
  • Heiko Peisert

Beilstein J. Nanotechnol. 2021, 12, 485–496, doi:10.3762/bjnano.12.39

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  • Tübingen, Germany 10.3762/bjnano.12.39 Abstract We study interface properties of CoPcFx and FePcFx (x = 0 or 16) on niobium-doped SrTiO3(100) surfaces using mainly X-ray photoelectron spectroscopy and ultraviolet photoelectron spectroscopy. For all studied molecules, a rather complex, bidirectional charge
  • a thickness of 0.34 nm estimated from the structure of an α-polymorph of TMPcs [42][43][44]. Photoelectron spectroscopy (PES) measurements were performed using an ultrahigh-vacuum setup equipped with a monochromatized standard source (Al Kα), a twin-anode standard source (Al Kα and Mg Kα), PHOIBOS
  • 100 (X-ray photoelectron diffraction) or 150 (monochromatized X-ray photoelectron spectroscopy) hemispherical analyzers (SPECS), and a four-grid LEED optics (SpectaLEED, Omicron, Germany). The PES binding energy scale is calibrated to reproduce the binding energies of Cu 2p3/2 (932.6 eV), Ag 3d5/2
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Published 21 May 2021

Boosting of photocatalytic hydrogen evolution via chlorine doping of polymeric carbon nitride

  • Malgorzata Aleksandrzak,
  • Michalina Kijaczko,
  • Wojciech Kukulka,
  • Daria Baranowska,
  • Martyna Baca,
  • Beata Zielinska and
  • Ewa Mijowska

Beilstein J. Nanotechnol. 2021, 12, 473–484, doi:10.3762/bjnano.12.38

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  • Cl modification resulted in the maintenance of the chemical skeleton [43][44][45][46][47]. The chemical composition and relative atomic percentages of the obtained materials were analyzed by X-ray photoelectron spectroscopy (XPS). The XPS spectra revealed that the samples are composed of carbon
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Published 19 May 2021

Structural and optical characteristics determined by the sputtering deposition conditions of oxide thin films

  • Petronela Prepelita,
  • Florin Garoi and
  • Valentin Craciun

Beilstein J. Nanotechnol. 2021, 12, 354–365, doi:10.3762/bjnano.12.29

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  • diffraction (XRD) and X-ray photoelectron spectroscopy (XPS), while the surface topography of the samples was analyzed using scanning electron microscopy (SEM). The optical characteristics were measured for samples with the same composition but obtained with different deposition parameters, such as increasing
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Published 19 Apr 2021

Scanning transmission helium ion microscopy on carbon nanomembranes

  • Daniel Emmrich,
  • Annalena Wolff,
  • Nikolaus Meyerbröker,
  • Jörg K. N. Lindner,
  • André Beyer and
  • Armin Gölzhäuser

Beilstein J. Nanotechnol. 2021, 12, 222–231, doi:10.3762/bjnano.12.18

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  • detector is able to determine the thickness of membranes with sub-nanometer precision by quantitatively evaluating the image signal and comparing the results with Monte Carlo simulations. The thickness determined by the dark-field transmission detector is compared to X-ray photoelectron spectroscopy and
  • between the two cases, and the error of this particular measurement is 9%. To test the validity of the determined thickness and the approach described above, the results from the STIM dark-field imaging are compared to X-ray photoelectron spectroscopy (XPS) and energy-filtered transmission electron
  • steps of 1 mrad. X-ray photoelectron spectroscopy was conducted on an Omicron Multiprobe instrument using a monochromatized Al Kα X-ray source (1486.7 eV, 225 W) and an Omicron Sphera hemispherical electron energy analyzer at a constant analyzer energy of 12.5 eV. The data was acquired under a
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Published 26 Feb 2021

Fusion of purple membranes triggered by immobilization on carbon nanomembranes

  • René Riedel,
  • Natalie Frese,
  • Fang Yang,
  • Martin Wortmann,
  • Raphael Dalpke,
  • Daniel Rhinow,
  • Norbert Hampp and
  • Armin Gölzhäuser

Beilstein J. Nanotechnol. 2021, 12, 93–101, doi:10.3762/bjnano.12.8

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  • histidine-tag at the extracellular side of a PM mutant (c-His PM). The functionalization and the resulting hybrid membrane were examined by atomic force microscopy (AFM), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), confocal laser scanning microscopy (CLSM), and infrared
  • . Afterwards the sample was rinsed with ethanol, dried in a stream of nitrogen, and stored under argon gas. Sample characterization X-ray photoelectron spectroscopy (XPS) has been conducted in an Omicron Multiprobe UHV system (Scienta Omicron GmbH, Taunusstein, Germany) using monochromatic Al Kα irradiation, a
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Published 22 Jan 2021

Free and partially encapsulated manganese ferrite nanoparticles in multiwall carbon nanotubes

  • Saja Al-Khabouri,
  • Salim Al-Harthi,
  • Toru Maekawa,
  • Mohamed E. Elzain,
  • Ashraf Al-Hinai,
  • Ahmed D. Al-Rawas,
  • Abbsher M. Gismelseed,
  • Ali A. Yousif and
  • Myo Tay Zar Myint

Beilstein J. Nanotechnol. 2020, 11, 1891–1904, doi:10.3762/bjnano.11.170

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  • ) overnight. X-ray photoelectron spectroscopy (XPS, Omicron Nanotechnology) was employed with a monochromatic Al Kα radiation (hν = 1486.6 eV), with a source voltage of 15 kV and an emission current of 20 mA. Scans were carried out at a base pressure of 2 × 10−8 Pa. A wide scan was recorded at a constant
  • nanoparticles [15], as confirmed by the line profile shown in Figure 1d. In order to investigate the electronic properties of free MnFe2O4 nanoparticles, ultraviolet photoelectron spectroscopy was employed. Even though theoretical studies have been reported for MnFe2O4 [16], to the best of our knowledge, these
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Published 29 Dec 2020

Scanning transmission imaging in the helium ion microscope using a microchannel plate with a delay line detector

  • Eduardo Serralta,
  • Nico Klingner,
  • Olivier De Castro,
  • Michael Mousley,
  • Santhana Eswara,
  • Serge Duarte Pinto,
  • Tom Wirtz and
  • Gregor Hlawacek

Beilstein J. Nanotechnol. 2020, 11, 1854–1864, doi:10.3762/bjnano.11.167

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  • combination of MCPs with a delay line readout structure as a position-sensitive detector was first implemented for the detection of 1–15 keV electrons [33]. Since then, it has been used in many other applications such as in astrophysics [34], transmission electron microscopy [35], and hard X-ray photoelectron
  • spectroscopy [36]. The working principle of the detector can be summarized as follows: At the front side of the MCP, SEs are produced by the impact of the impinging energetic particles (He ions and atoms). These SEs are drawn into the microchannels due to the applied bias. The number of SEs is multiplied by
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Published 11 Dec 2020

Unravelling the interfacial interaction in mesoporous SiO2@nickel phyllosilicate/TiO2 core–shell nanostructures for photocatalytic activity

  • Bridget K. Mutuma,
  • Xiluva Mathebula,
  • Isaac Nongwe,
  • Bonakele P. Mtolo,
  • Boitumelo J. Matsoso,
  • Rudolph Erasmus,
  • Zikhona Tetana and
  • Neil J. Coville

Beilstein J. Nanotechnol. 2020, 11, 1834–1846, doi:10.3762/bjnano.11.165

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  • , and X-ray photoelectron spectroscopy (XPS) were used to elucidate the morphological and textural features, optoelectronic properties, and elemental composition of the core–shell nanomaterials. These core–shell nanostructures were also employed as catalysts in a model reaction, that is, the
  • hydroxy groups bonded to nickel atoms (δ(NiO–H) band) in NiPS as multiple peaks were recorded between 630 and 710 cm−1 [57]. XPS analysis of mSiO2@NiPS and mSiO2@NiPS/TiO2 X-ray photoelectron spectroscopy (XPS) was used to study the surface composition of mSiO2@NiPS and mSiO2@NiPS/TiO2. The complete scans
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Published 09 Dec 2020

Self-standing heterostructured NiCx-NiFe-NC/biochar as a highly efficient cathode for lithium–oxygen batteries

  • Shengyu Jing,
  • Xu Gong,
  • Shan Ji,
  • Linhui Jia,
  • Bruno G. Pollet,
  • Sheng Yan and
  • Huagen Liang

Beilstein J. Nanotechnol. 2020, 11, 1809–1821, doi:10.3762/bjnano.11.163

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  • energy-dispersive X-ray spectroscopy (EDX) were carried out on a FEI Tecnia G2 F20 high-resolution transmission electron microscope operating at 200 kV. The surface composition of the samples was analyzed by X-ray photoelectron spectroscopy (XPS) on a ESCALAB 250Xi electron energy spectrometer using Al
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Published 02 Dec 2020

Electron beam-induced deposition of platinum from Pt(CO)2Cl2 and Pt(CO)2Br2

  • Aya Mahgoub,
  • Hang Lu,
  • Rachel M. Thorman,
  • Konstantin Preradovic,
  • Titel Jurca,
  • Lisa McElwee-White,
  • Howard Fairbrother and
  • Cornelis W. Hagen

Beilstein J. Nanotechnol. 2020, 11, 1789–1800, doi:10.3762/bjnano.11.161

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  • for complete precursor decomposition [14]. Electron-induced decomposition of adsorbed Pt(CO)2Cl2 has been previously studied using X-ray photoelectron spectroscopy (XPS) and mass spectrometry, and some deposits were produced in the ultrahigh vacuum (UHV) environment of an Auger electron spectroscopy
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Published 27 Nov 2020

Absorption and photoconductivity spectra of amorphous multilayer structures

  • Oxana Iaseniuc and
  • Mihail Iovu

Beilstein J. Nanotechnol. 2020, 11, 1757–1763, doi:10.3762/bjnano.11.158

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  • As2Se3:Snx glassy system [6] and X-ray photoelectron spectroscopy studies of AsxGexSe1−2x glasses [4], the introduction of elements such as Sn or Ge in glasses based on arsenic selenides, leads to the formation of new tetrahedral Sn(Se1/2)4 and quasi-octahedral SnSe structural units or of GeSe4
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Published 20 Nov 2020

Direct observation of the Si(110)-(16×2) surface reconstruction by atomic force microscopy

  • Tatsuya Yamamoto,
  • Ryo Izumi,
  • Kazushi Miki,
  • Takahiro Yamasaki,
  • Yasuhiro Sugawara and
  • Yan Jun Li

Beilstein J. Nanotechnol. 2020, 11, 1750–1756, doi:10.3762/bjnano.11.157

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  • ], scanning tunneling microscopy (STM) [15][16][17][18][19][20][21][22][23][24], scanning transmission electron microscopy (STEM) [25], and photoelectron spectroscopy (PES) [22][26][27]. The 16×2 reconstruction has a striped structure with upper and lower terraces and with boundaries of monatomic steps. In
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Published 19 Nov 2020

PEG/PEI-functionalized single-walled carbon nanotubes as delivery carriers for doxorubicin: synthesis, characterization, and in vitro evaluation

  • Shuoye Yang,
  • Zhenwei Wang,
  • Yahong Ping,
  • Yuying Miao,
  • Yongmei Xiao,
  • Lingbo Qu,
  • Lu Zhang,
  • Yuansen Hu and
  • Jinshui Wang

Beilstein J. Nanotechnol. 2020, 11, 1728–1741, doi:10.3762/bjnano.11.155

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  • 3000HS). A volume-weighted Gaussian size distribution was fit to the autocorrelation functions to obtain the particle size and zeta potential values. The atomic fractions of C, O, and N in the different SWCNTs samples were determined by X-ray photoelectron spectroscopy (XPS, Thermo Fisher Scientific
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Published 13 Nov 2020

The influence of an interfacial hBN layer on the fluorescence of an organic molecule

  • Christine Brülke,
  • Oliver Bauer and
  • Moritz M. Sokolowski

Beilstein J. Nanotechnol. 2020, 11, 1663–1684, doi:10.3762/bjnano.11.149

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  • PTCDA and hBN/Cu(111) is weak and physisorptive [32] as opposed to the chemisorptive bond between PTCDA and Cu(111) [33]. Ultraviolet photoelectron spectroscopy (UPS) experiments showed that on the Cu(111) surface the chemical bonding leads to a filling of the LUMO [33]. In contrast, on hBN/Cu(111), the
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Published 03 Nov 2020

Cu2O nanoparticles for the degradation of methyl parathion

  • Juan Rizo,
  • David Díaz,
  • Benito Reyes-Trejo and
  • M. Josefina Arellano-Jiménez

Beilstein J. Nanotechnol. 2020, 11, 1546–1555, doi:10.3762/bjnano.11.137

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  • through UV–vis absorption of 4-NPh. Likewise, it was shown that the surface basicity increases with decreasing nanoparticle size. The presence of CuCO3 on the surface of Cu2O, identified using X-ray photoelectron spectroscopy (XPS), passivates its surface and consequently diminishes the degradation of MP
  • width of 45°, acquisition time of 0.813 s, FT size of 65 K and digital resolution of 0.5 Hz per point. The number of scans varied from 512 to 4,096 per spectrum. X-ray photoelectron spectroscopy (XPS) were measured in a ESCA/SAM Perkin-Elmer model 560, using an Al Kα source with a 400 μm spot diameter
  • should increase with a reduction in NP size. However, the almost inexistent difference (3%) between the 16 nm and 29 nm NPs suggest the influence of other factors. In order to further study this small difference in degradation percentage between 16 nm and 29 nm NPs, X-ray photoelectron spectroscopy (XPS
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Published 12 Oct 2020

Controlling the electronic and physical coupling on dielectric thin films

  • Philipp Hurdax,
  • Michael Hollerer,
  • Larissa Egger,
  • Georg Koller,
  • Xiaosheng Yang,
  • Anja Haags,
  • Serguei Soubatch,
  • Frank Stefan Tautz,
  • Mathias Richter,
  • Alexander Gottwald,
  • Peter Puschnig,
  • Martin Sterrer and
  • Michael G. Ramsey

Beilstein J. Nanotechnol. 2020, 11, 1492–1503, doi:10.3762/bjnano.11.132

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  • photoelectron spectroscopy [20]. Similarly, the LEED technique will probably not be sensitive to the charge state per se, although differences in the molecular orientation and in the long-range order might occur. With a thorough analysis and molecular orbital resolution, it should be possible to distinguish
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Published 01 Oct 2020

One-step synthesis of carbon-supported electrocatalysts

  • Sebastian Tigges,
  • Nicolas Wöhrl,
  • Ivan Radev,
  • Ulrich Hagemann,
  • Markus Heidelmann,
  • Thai Binh Nguyen,
  • Stanislav Gorelkov,
  • Stephan Schulz and
  • Axel Lorke

Beilstein J. Nanotechnol. 2020, 11, 1419–1431, doi:10.3762/bjnano.11.126

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  • the resulting Pt-NPs. Platinum loading and degree of oxidation The relative platinum loading and degree of oxidation were determined by X-ray photoelectron spectroscopy (XPS, see Experimental section). In Figure 5, an XPS survey scan (Figure 5a) and Pt4f elemental scans (Figure 5b,c) related to the
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Published 17 Sep 2020

Impact of fluorination on interface energetics and growth of pentacene on Ag(111)

  • Qi Wang,
  • Meng-Ting Chen,
  • Antoni Franco-Cañellas,
  • Bin Shen,
  • Thomas Geiger,
  • Holger F. Bettinger,
  • Frank Schreiber,
  • Ingo Salzmann,
  • Alexander Gerlach and
  • Steffen Duhm

Beilstein J. Nanotechnol. 2020, 11, 1361–1370, doi:10.3762/bjnano.11.120

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  • ) on Ag(111) via X-ray standing waves (XSW), low-energy electron diffraction (LEED) as well as ultraviolet and X-ray photoelectron spectroscopy (UPS and XPS). XSW revealed that the adsorption distances of F4PEN in (sub)monolayers on Ag(111) were 3.00 Å for carbon atoms and 3.05 Å for fluorine atoms
  • photoelectron spectroscopy data with that of PEN and PFP hinted at π-stacking: For F4PEN, a herringbone arrangement involving an inclination of the molecular short axis would expose the C–H bonds (and not the C–F polar bonds) to the surface. This case would be in analogy to PEN, and a shift of the HOMO towards
  • a lower BE should be expected, which was, however, not observed. π-stacking, on the other hand, could explain the photoelectron spectroscopy data: The rigid shifts in UPS and XPS were due to screening by the substrate; the valence electron peak between the HOMO and the HOMO−1 for multilayer coverage
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Published 08 Sep 2020
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