Results 11 to 20 of about 2,228,604 (285)

Quantifying charge carrier concentration in ZnO thin films by Scanning Kelvin Probe Microscopy [PDF]

Scientific Reports, 2014
In the last years there has been a renewed interest for zinc oxide semiconductor, mainly triggered by its prospects in optoelectronic applications. In particular, zinc oxide thin films are being widely used for photovoltaic applications, in which the determination of the electrical conductivity is of great importance.
Maragliano C, Lilliu S, Dahlem M S, Chiesa M, Souier T, Stefancich M   +5 more
openaire   +3 more sources

Simultaneous nanoscale imaging of local conductivity and chemical potential in a quantum Hall isospin ferromagnet [PDF]

Nature Communications
Quantum Hall isospin ferromagnetism in multilayer graphene offers a versatile playground for exploring flat band correlated physics, driven by the intricate coupling of spin, valley, orbital, and layer degrees of freedom.
Jiawei Hu, Shiyu Zhu, Bohao Li, Yunhao Wang, Shuigang Xu, Zhihai Cheng, Chengmin Shen, Andre K. Geim, Fengcheng Wu, Hong-Jun Gao   +9 more
doaj   +2 more sources

Grain-Boundary-Enriched Cocatalyst Coupled With CuSCN Hole Transport Layer for Efficient Solar Water Oxidation in BiVO₄ Photoanode. [PDF]

Adv Sci (Weinh)
A grain‐boundary‐enriched NiFe cocatalyst is coupled with a CuSCN hole transport layer on BiVO4 photoanodes. The integrated architecture promotes hole extraction, interfacial charge transfer, and surface OER kinetics, highlighting cocatalyst microstructure regulation as a complementary strategy to hole transport layer engineering. ABSTRACT Solar‐driven
Zhao W, He Y, Wang X, Zhu L, Su T, Zhou Y, Li X, Du P, Lu X.   +8 more
europepmc   +2 more sources

Local Charge Trapping in Conjugated Polymers Resolved by Scanning Kelvin Probe Microscopy [PDF]

Physical Review Letters, 2009
The microstructure of conjugated polymers is heterogeneous on the length scale of individual polymer chains, but little is known about how this affects their electronic properties. Here we use scanning Kelvin probe microscopy with resolution-enhancing carbon nanotube tips to study charge transport on a 100 nm scale in a chain-extended, semicrystalline ...
Hallam, Toby, Lee, MiJung, Zhao, Ni, Nandhakumar, Iris, Kemerink, Martijn, Heeney, Martin, McCulloch, Iain, Sirringhaus, Henning   +7 more
openaire   +6 more sources

Characterization of Carbide Particles in S-65 Beryllium by Scanning Kelvin Probe Force Microscopy [PDF]

Journal of The Electrochemical Society, 2017
Scanning Kelvin probe force microscopy has been employed to examine the behaviour of second phase carbide particles in beryllium at different relative humidity levels and after exposure to deionised water. Carbides are believed to have a role in the localised corrosion of beryllium as a result of their hydrolysis when exposed at the metal surface.
Christopher F. Mallinson, Ann Harvey, John F. Watts   +2 more
core   +6 more sources

Monolayer MoS₂ With Ultrahigh Piezoelectricity: From ALD Dose Control to Device Performance. [PDF]

Adv Sci (Weinh)
This study demonstrates that controlling precursor dosages in atomic layer deposition (ALD) serves to regulate ultrathin oxide quality, which in turn determines sulfurization behavior and MoS2 monolayer continuity. The resulting continuous, low‐defect monolayers enable improved piezoelectric performance and support a flexible slippage sensor, linking ...
Li Y, Tan MRJ, Das S, Du Y, Lai W, Ong JA, He Y, Zou Y, Kurkin A, Huang P, Liu J, Chen X, Tok AIY, Phee SJ, Etgar L, Magdassi S, Lee PS.   +16 more
europepmc   +2 more sources

Porcupine‐Quill‐Inspired Shape‐Morphing Biointerfaces Disassemble Biofilms [PDF]

Advanced science
A porcupine‐spine‐inspired dynamic offensive bio‐interface is developed for active biofilm disassembly. By coupling electrically driven nano‐dagger penetration with light‐triggered ROS generation, the surface overcomes the passive limitations of conventional mechano‐bactericidal topographies, achieving near‐complete biofilm eradication, strong ...
Qian F, Xia M, Wang Z, Jia X, Yin J, Fu M, Zhang X, Shi X, Chen S, Wang N, Chen Z.   +10 more
europepmc   +2 more sources

Quantitative AC - Kelvin Probe Force Microscopy [PDF]

, 2017
This paper presents a novel feedback based Scanning Probe Microscopy method which enables quantitative surface potential measurements without the need of the DC bias of Kelvin Probe Force Microscopy.
Kohl, Dominik, Schitter, Georg, Mesquida, Patrick   +2 more
core   +6 more sources

Electronic structures and optical characteristics of fluorescent pyrazinoquinoxaline assemblies and Au interfaces

Scientific Reports, 2021
Understanding the excitonic processes at the interfaces of fluorescent π-conjugated molecules and metal electrodes is important for both fundamental studies and emerging applications. Adsorption configurations of molecules on metal surfaces significantly
Soyeong Kwon, Dong Yeun Jeong, Weon-Sik Chae, Kyungju Noh, P. Devi, Luciano Colazzo, Youngmin You, Taeyoung Choi, Dong-Wook Kim   +8 more
doaj   +1 more source

Quantification of electron accumulation at grain boundaries in perovskite polycrystalline films by correlative infrared-spectroscopic nanoimaging and Kelvin probe force microscopy

Light: Science & Applications, 2021
Organic–inorganic halide perovskites are emerging materials for photovoltaic applications with certified power conversion efficiencies (PCEs) over 25%.
Ting-Xiao Qin, En-Ming You, Mao-Xin Zhang, Peng Zheng, Xiao-Feng Huang, Song-Yuan Ding, Bing-Wei Mao, Zhong-Qun Tian   +7 more
doaj   +1 more source