Results 71 to 80 of about 25,000 (165)

Probing the surface electrical properties of clay minerals with electrostatic force microscopy and kelvin probe force microscopy

Materials Research Express
Many surface processes of clay minerals require in-depth understanding of their surface electrical properties, such as surface charge density, surface potential distribution, etc In this paper, electrostatic force microscopy (EFM) and Kelvin probe force ...
Zonghua Qin, Xin Nie, Wenbin Yu, Shuguang Yang, Zongke Zhou, Shuqin Yang, Quan Wan   +6 more
doaj   +1 more source

An NC-AFM and KPFM study of the adsorption of a triphenylene derivative on KBr(001)

Beilstein Journal of Nanotechnology, 2012
The adsorption on KBr(001) of a specially designed molecule, consisting of a flat aromatic triphenylene core equipped with six flexible propyl chains ending with polar cyano groups, is investigated by using atomic force microscopy in the noncontact mode (
Antoine Hinaut, Adeline Pujol, Florian Chaumeton, David Martrou, André Gourdon, Sébastien Gauthier   +5 more
doaj   +1 more source

A Comparative Investigation on the Corrosion Behavior of cast and rolled ZG21 Mg Alloys

International Journal of Electrochemical Science, 2017
ZG21 Mg alloys exhibit excellent deformation ability at room temperature. However, their corrosion behavior lacks sufficient investigation. The relationship between the second phases and micro-galvanic corrosion of ZG21 Mg alloys has been investigated ...
Peng Chen, Yingwei Song, Jinhui Liu, Dayong Shan, En-Hou Han   +4 more
doaj   +1 more source

Single-Crystal Organic Charge-Transfer Interfaces probed using Schottky-Gated Heterostructures

, 2012
Organic semiconductors based on small conjugated molecules generally behave as insulators when undoped, but the hetero-interfaces of two such materials can show electrical conductivity as large as in a metal.
., Chen, Zhihua, Di Girolamo, Flavia V., Facchetti, Antonio, Lezama, Ignacio Gutiérrez, Minder, Nikolas A., Morpurgo, Alberto F., Nakano, Masaki   +7 more
core   +2 more sources

Calibrated work function mapping by Kelvin probe force microscopy

Review 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.
Fernández Garrillo, Pablo, Grevin, Benjamin, Chevalier, Nicolas, Borowik, Lukasz   +3 more
openaire   +4 more sources

Grain Boundaries Contribute to the Performance of Perovskite Solar Cells by Promoting Charge Separations

Nano-Micro Letters
Highlights Sub-micrometer-resolved photocurrent mapping in operational perovskite solar cells, achieved through our home-built photoluminescence and photocurrent imaging microscopy, reveals enhanced photocurrent at grain boundaries compared to grain ...
Peng Xu, Pengfei Wang, Minhuan Wang, Fengke Sun, Jing Leng, Yantao Shi, Shengye Jin, Wenming Tian   +7 more
doaj   +1 more source

3D Imaging and Quantitative Subsurface Dielectric Constant Measurement Using Peak Force Kelvin Probe Force Microscopy

Advanced Materials Interfaces
Noninvasive and depth‐sensitive measurements of dielectric properties are becoming of great interest in advanced and complex nanostructured architectures.
Khaled Kaja, Ammar Assoum, Peter De Wolf, François Piquemal, Antonio Nehmee, Adnan Naja, Taha Beyrouthy, Mustapha Jouiad   +7 more
doaj   +1 more source

Surface passivation of (100) GaSb using self-assembled monolayers of long-chain octadecanethiol

AIP Advances, 2016
The passivation of (100) GaSb surface was investigated by means of the long-chain octadecanethiol (ODT) self-assembled monolayer (SAM). The properties of ODT SAM on (100) GaSb were characterized by the atomic force microscopy using Kelvin probe force ...
E. Papis-Polakowska, J. Kaniewski, J. Jurenczyk, A. Jasik, K. Czuba, A. E. Walkiewicz, J. Szade   +6 more
doaj   +1 more source

Vickers Hardness of Diamond and cBN Single Crystals: AFM Approach

Crystals, 2017
Atomic force microscopy in different operation modes (topography, derivative topography, and phase contrast) was used to obtain 3D images of Vickers indents on the surface of diamond and cBN single crystals with high spatial resolution.
Sergey Dub, Petro Lytvyn, Viktor Strelchuk, Andrii Nikolenko, Yurii Stubrov, Igor Petrusha, Takashi Taniguchi, Sergey Ivakhnenko   +7 more
doaj   +1 more source

Pulsed Force Kelvin Probe Force Microscopy through Integration of Lock-In Detection. [PDF]

Nano Lett, 2023
Zahmatkeshsaredorahi A, Jakob DS, Fang H, Fakhraai Z, Xu XG.   +4 more
europepmc   +1 more source