Results 21 to 30 of about 12,657 (265)

Nanoscale photovoltage mapping in CZTSe/CuxSe heterostructure by using kelvin probe force microscopy

open access: yesMaterials Research Express, 2020
In the present work, kelvin probe force microscopy (KPFM) technique has been used to study the CZTSe/Cu _x Se bilayer interface prepared by multi-step deposition and selenization process of metal precursors.
Manoj Vishwakarma   +4 more
doaj   +1 more source

Photocurrent measurements in topological insulator $\text{Bi}_2\text{Se}_3$ nanowires

open access: yes, 2020
Circular photogalvanic currents are a promising new approach for spin-optoelectronics. To date, such currents have only been induced in topological insulator flakes or extended films. It is not clear whether they can be generated in nanodevices.
Geishendorf, K.   +4 more
core   +1 more source

Enhanced Light Absorption and Efficient Carrier Collection in MoS2 Monolayers on Au Nanopillars

open access: yesNanomaterials, 2022
We fabricated hybrid nanostructures consisting of MoS2 monolayers and Au nanopillar (Au-NP) arrays. The surface morphology and Raman spectra showed that the MoS2 flakes transferred onto the Au-NPs were very flat and nonstrained.
Jungeun Song   +9 more
doaj   +1 more source

Photovoltaic Probe of Cavity Polaritons in a Quantum Cascade Structure [PDF]

open access: yes, 2007
The strong coupling between an intersubband excitation in a quantum cascade structure and a photonic mode of a planar microcavity has been detected by angle-resolved photovoltaic measurements.
Ciuti, Cristiano   +6 more
core   +4 more sources

KPFM surface photovoltage measurement and numerical simulation

open access: yesEPJ Photovoltaics, 2019
A method for the analysis of Kelvin probe force microscopy (KPFM) characterization of semiconductor devices is presented. It enables evaluation of the influence of defective surface layers.
Marchat Clément   +5 more
doaj   +1 more source

Interplay between Collective and Localized Effects of Point Defects on Photoelectrochemical Performance of TiO2 Photoanodes for Oxygen Evolution

open access: yesAdvanced Materials Interfaces, 2023
Among the various photoanode materials investigated for photoelectrochemical water splitting cells, TiO2 stands out due to its abundance, stability, and favorable valence band edge for water oxidation.
Mengya Yang   +7 more
doaj   +1 more source

Revealing of InP multi-layer stacks from KPFM measurements in the dark and under illumination

open access: yesEPJ 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

The Features of Decay Kinetics of Photovoltage in Silicon Crystals Used in Solar Energy Caused by Weak Stationary Magnetic Field [PDF]

open access: yesЖурнал нано- та електронної фізики, 2015
The influence of a weak stationary magnetic field on the decay kinetics of photovoltage in solar-Si crystals is studied. The features in the behavior of electrophysical parameters showed that the stability of the short-term and long-term components of ...
L.P. Steblenko   +7 more
doaj  

Surface Electric Potential Measurement with a Static Probe

open access: yesПриборы и методы измерений, 2023
Surface electric potential measurements are widely used in non-destructive inspection and testing of precision surfaces, for example, in the production of semiconductor devices and integrated circuits.
R. I. Vorobey   +8 more
doaj   +1 more source

Metal silicide/poly-Si Schottky diodes for uncooled microbolometers [PDF]

open access: yes, 2013
Nickel silicide Schottky diodes formed on polycrystalline Si films are proposed as temperature sensors of monolithic uncooled microbolometer IR focal plane arrays.
Chapnin, V. A.   +5 more
core   +2 more sources

Home - About - Disclaimer - Privacy