Results 31 to 40 of about 25,733 (269)

Electrical Study of Trapped Charges in Copper-Doped Zinc Oxide Films by Scanning Probe Microscopy for Nonvolatile Memory Applications. [PDF]

open access: yesPLoS ONE, 2017
Charge trapping properties of electrons and holes in copper-doped zinc oxide (ZnO:Cu) films have been studied by scanning probe microscopy. We investigated the surface potential dependence on the voltage and duration applied to the copper-doped ZnO films
Ting Su, Haifeng Zhang
doaj   +1 more source

MOVPE-Grown Quantum Cascade Laser Structures Studied by Kelvin Probe Force Microscopy

open access: yesCrystals, 2020
A technique for direct study of the distribution of the applied voltage within a quantum cascade laser (QCL) has been developed. The detailed profile of the potential in the laser claddings and laser core region has been obtained by gradient scanning ...
Konstantin Ladutenko   +3 more
doaj   +1 more source

Calibrated work function mapping by Kelvin probe force microscopy.

open access: yesReview of Scientific Instruments, 2018
We propose and demonstrate the implementation of an alternative work function tip calibration procedure for Kelvin probe force microscopy under ultrahigh vacuum, using monocrystalline metallic materials with known crystallographic orientation as reference samples, instead of the often used highly oriented pyrolytic graphite calibration sample.
Pablo A Fernández Garrillo   +3 more
semanticscholar   +5 more sources

ARMScope – the versatile platform for scanning probe microscopy systems

open access: yesMetrology and Measurement Systems, 2020
Scanning probe microscopy (SPM) since its invention in the 80’s became very popular in examination of many different sample parameters, both in university and industry. This was the effect of bringing this technology closer to the operator.
Świadkowski Bartosz   +8 more
doaj   +1 more source

Single hydrogen atom manipulation for reversible deprotonation of water on a rutile TiO2 (110) surface

open access: yesCommunications Chemistry, 2021
Rutile TiO2 is a prominent photocatalyst for overall water splitting, but the on-surface activation of hydrogen atoms is still not fully understood. Here, the authors use atomic force and kelvin probe force microscopy to study the lateral manipulation of
Yuuki Adachi   +3 more
doaj   +1 more source

High-Bandwidth Multiparametric Kelvin Probe Force Microscopy With Polymer Microcantilevers

open access: yesIEEE Access, 2019
Simultaneous and rapid measurement of the surface potential (SP) and nanomechanical properties (NMPs) of materials plays an important role in the study of, for example, piezoelectric materials and multi-component composites.
Hao Zhang   +5 more
doaj   +1 more source

Resolving surface potential variation in Ge/MoS2 heterostructures with Kelvin probe force microscopy

open access: yesAIP Advances, 2021
In this work, we employ an atomic force microscopy-based technique, Kelvin probe force microscopy, to analyze heterogeneities of four different 2D/3D Ge/MoS2 heterostructures with Ge chemical vapor deposition (CVD) time.
Sanguk Woo   +6 more
doaj   +1 more source

Kelvin Probe Force Microscopy by Dissipative Electrostatic Force Modulation [PDF]

open access: yesPhysical Review Applied, 2015
We report a new experimental technique for Kelvin probe force microscopy (KPFM) using the dissipation signal of frequency modulation atomic force microscopy for bias voltage feedback. It features a simple implementation and faster scanning as it requires no low frequency modulation.
Miyahara, Yoichi   +3 more
openaire   +2 more sources

Distinguishing magnetic and electrostatic interactions by a Kelvin probe force microscopy–magnetic force microscopy combination

open access: yesBeilstein Journal of Nanotechnology, 2011
The most outstanding feature of scanning force microscopy (SFM) is its capability to detect various different short and long range interactions.
Miriam Jaafar   +5 more
doaj   +1 more source

High spatial resolution Kelvin probe force microscopy with coaxial probes [PDF]

open access: yesNanotechnology, 2012
Kelvin probe force microscopy (KPFM) is a widely used technique to measure the local contact potential difference (CPD) between an AFM probe and the sample surface via the electrostatic force. The spatial resolution of KPFM is intrinsically limited by the long range of the electrostatic interaction, which includes contributions from the macroscopic ...
Brown, Keith A.   +2 more
openaire   +3 more sources

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