Results 271 to 280 of about 3,573 (286)

Imaging Static Charge Distributions: A Comprehensive KPFM Theory

2018
We analyze Kelvin probe force microscopy (KPFM) for tip-sample systems that contain static charges by presenting a rigorous derivation for the respective KPFM signal in all common KPFM modes, namely amplitude modulation, frequency modulation, or heterodyne detection in the static, open-loop or closed-loop variant.
Philipp Rahe, Hagen Söngen
openaire   +1 more source

KPFM and XPS Metrology of Self-Assembled Monolayer Barrier for Copper Metallization

ECS Meeting Abstracts, 2018
Silane based Self assembled monolayer (SAM) has been demonstrated as a diffusion barrier layer on lowK dielectrics for sub 10 nm Cu interconnects for Integrated Circuit (IC) applications. A key problem in developing barrier layer is its monitoring capability, especially its thickness, uniformity, its coverage and defect density.
Rakefet Ofek Almog, Yelena Sverdlov, Kian Kadan, Larisa Burstein, Ronen Dagan, Yosi Shacham-Diamand   +5 more
openaire   +1 more source

KPFM/AFM imaging on TiO₂(110) surface in O₂ gas

Nanotechnology, 2018
We have carried out high-speed imaging of the topography and local contact potential difference (LCPD) on rutile TiO2(110) in O2 gas by atomic force microscopy (AFM) and Kelvin probe force microscopy (KPFM). We succeeded in KPFM/AFM imaging with atomic resolution at 1 frame min-1 and observed the adsorbate on a hydroxylated TiO2(110) surface.
Eiji Arima, Huan Fei Wen, Yoshitaka Naitoh, Yan Jun Li, Yasuhiro Sugawara   +4 more
openaire   +2 more sources

High resolution subsurface imaging using resonance-enhanced detection in 2nd-harmonic KPFM

Nanotechnology, 2018
Second harmonic Kelvin probe force microscopy is a robust mechanism for subsurface imaging at the nanoscale. Here we exploit resonance-enhanced detection as a way to boost the subsurface contrast with higher force sensitivity using lower bias voltages, in comparison to the traditional off-resonance case.
Maria J Cadena, Ronald G Reifenberger, Arvind Raman   +2 more
openaire   +2 more sources

Origin of the KPFM Contrast in the Adsorption of a Triphenylene Derivative on KBr(001)

2015
The results of the study of the adsorption of 2,3,6,7,10,11-hexacyanopropyloxytriphenylene on KBr(001) by non-contact atomic force microscopy (nc-AFM) coupled to Kelvin probe force microscopy (KPFM) are presented. A particular emphasis is put on the KPFM measurements. In particular, the contrast in the Kelvin potential between a molecular monolayer and
Antoine Hinaut, Florian Chaumeton, David Martrou, Sebastién Gauthier   +3 more
openaire   +1 more source

Coupling atomic scale modeling, fluid modeling and KPFM measurements to characterize an interface at nanoscale

2016 IEEE International Conference on Dielectrics (ICD), 2016
Understanding the behaviour of space charge in a solid organic dielectric under electrical stress remains to be a challenge for the development of more compact and reliable systems in the fields ranging from high voltage engineering and microelectronics to space applications.
Le Roy, Séverine, Villeneuve-Faure, Christina, Chang, J. H., Huzayyin, A.   +3 more
openaire   +1 more source

Molecular Assemblies on Insulating Ultrathin Films Analyzed by NC‐AFM and KPFM

Israel Journal of Chemistry, 2008
AbstractRecently porphyrin‐based molecules have proven to be promising candidates to form self‐assembled structures on insulating surfaces. Their close similarity to hemoglobin and chlorophyll‐based molecules makes them promising candidates for functional building parts in molecular electronics.
Glatzel, Thilo, Zimmerli, Lars, Meyer, Ernst   +2 more
openaire   +2 more sources

KPFM analyses to evaluate the cathodic hydrogen charging of a lean duplex stainless steel

2023
Duplex Stainless Steels (DSS) are used in industrial sectors such as petrochemicals, nuclear and gas transport for their corrosion resistance and mechanical properties. Moreover, the presence of hydrogen could induce not only a modification in the fracture mechanisms (and so a ductile to brittle transition), but also changes in the plasticity ...
Proriol Serre, Ingrid, Bchara, Rana, Olive, Jean-Marc, Pecastaings, Gilles   +3 more
openaire   +2 more sources

Correlated TERS and KPFM imaging of the SeMoS Janus monolayer crystals

Low-Dimensional Materials and Devices 2023, 2023
Andrey Krayev, Ziyang Gan, Antony George, Andrey Turchanin   +3 more
openaire   +1 more source

Surface potential of nanodiamonds investigated by KPFM

2017
Bohuslav Rezek, Stepan Stehlik
openaire   +1 more source