Results 1 to 10 of about 5,467 (139)
Implementation of data-cube pump–probe KPFM on organic solar cells
Beilstein Journal of Nanotechnology, 2020 An implementation of pump–probe Kelvin probe force microscopy (pp-KPFM) is reported that enables recording the time-resolved surface potential in single-point mode or over a 2D grid. The spectroscopic data are acquired in open z-loop configuration, which
Benjamin Grévin +2 more
exaly +2 more sources
Revealing of InP multi-layer stacks from KPFM measurements in the dark and under illumination
EPJ Photovoltaics, 2022 Solar cells are complex devices, being constituted of many layers and interfaces. The study and the comprehension of the mechanisms that take place at the interfaces is crucial for efficiency improvement. This paper applies Kelvin probe force microscopy (
da Lisca Mattia +6 more
doaj +1 more source
Direct measurement of surface photovoltage by AC bias Kelvin probe force microscopy
Beilstein Journal of Nanotechnology, 2022 Surface photovoltage (SPV) measurements are a crucial way of investigating optoelectronic and photocatalytic semiconductors. The local SPV is generally measured consecutively by Kelvin probe force microscopy (KPFM) in darkness and under illumination, in ...
Masato Miyazaki +2 more
doaj +1 more source
Beilstein Journal of Nanotechnology, 2022 In this paper, we derive and present quantitative expressions governing the performance of single and multifrequency Kelvin probe force microscopy (KPFM) techniques in both air and water.
Jason I. Kilpatrick +2 more
doaj +1 more source
Beilstein Journal of Nanotechnology, 2021 The open-loop (OL) variant of Kelvin probe force microscopy (KPFM) provides access to the voltage response of the electrostatic interaction between a conductive atomic force microscopy (AFM) probe and the investigated sample. The measured response can be
Gheorghe Stan, Pradeep Namboodiri
doaj +1 more source
Dual-heterodyne Kelvin probe force microscopy
Beilstein Journal of Nanotechnology, 2023 We present a new open-loop implementation of Kelvin probe force microscopy (KPFM) that provides access to the Fourier spectrum of the time-periodic surface electrostatic potential generated under optical (or electrical) pumping with an atomic force ...
Benjamin Grévin +3 more
doaj +1 more source
Reconstruction of a 2D layer of KBr on Ir(111) and electromechanical alteration by graphene
Beilstein Journal of Nanotechnology, 2021 A novel reconstruction of a two-dimensional layer of KBr on an Ir(111) surface is observed by high-resolution noncontact atomic force microscopy and verified by density functional theory (DFT).
Zhao Liu +6 more
doaj +1 more source
Beilstein Journal of Nanotechnology, 2023 Multilayer III–V-based solar cells are complex devices consisting of many layers and interfaces. The study and the comprehension of the mechanisms that take place at the interfaces is crucial for efficiency improvement.
Mattia da Lisca +6 more
doaj +1 more source
Advanced Materials Interfaces, 2023 Few binding events are here shown to elicit an extended work function change in a large‐area Au‐surface biofunctionalized with ≈108 capturing antibodies.
Cinzia Di Franco +6 more
doaj +1 more source
Standardization of surface potential measurements of graphene domains [PDF]
, 2013 We compare the three most commonly used scanning probe techniques to obtain a reliable value of the work function in graphene domains of different thickness.
Kazakova, Olga +4 more
core +2 more sources