Results 121 to 130 of about 3,573 (286)

Band structure alignment in transfer-free MOCVD grown 2D-TMDC heterostructures revealed by ambient KPFM

APL Materials
Kelvin Probe Force Microscopy (KPFM) under laser illumination is employed to investigate the band structure of MoS2–WS2 heterostructures and its impact on charge carrier separation at the heterointerface.
M. Abdelbaky, Y. Beckmann, J. Klein, T. G. Fabunmi, N. Stracke, A. Grundmann, M. Heuken, H. Kalisch, A. Vescan, T. Kümmell, W. Mertin, G. Bacher   +11 more
doaj   +1 more source

Defect‐Functionalization‐Mediated Tunneling Drives Nonlinear Photoemission in Perovskites

Advanced Science, EarlyView.
This cover illustration depicts CsPbBr3 perovskite nanocrystals embedded with functionalized defect vacancies, where electrons migrate through defect‐mediated pathways and emit as lightning‐like beams. The imagery visualizes the core discovery of our work—defect‐functionalization‐mediated tunneling enabling nonlinear photoemission, where deep‐level ...
Hang Ren, Xi Zhang, Yicheng Wang, Shuai Wang, Zhi Wang, Yumeng Li, Jikai Yang, Xin Wang, Weijun Chen, Yining Mu   +9 more
wiley   +1 more source

AFM-assisted fabrication of thiol SAM pattern with alternating quantified surface potential

Nanoscale Research Letters, 2011
Thiol self-assembled monolayers (SAMs) are widely used in many nano- and bio-technology applications. We report a new approach to create and characterize a thiol SAMs micropattern with alternating charges on a flat gold-coated substrate using atomic ...
Simons Janet, Xu Song, Moores Bradley, Leonenko Zoya   +3 more
doaj  

Ambipolar Organic–Inorganic Heterostructure Transistor Array for Integrated Visual Information Processing

Advanced Science, EarlyView.
We present an organic–inorganic heterostructure transistor array for neuromorphic computing, achieving 95.6% MNIST accuracy and 1.2 fJ per operation, with dynamic spatiotemporal encoding and precise vehicle direction detection under combined optical and electrical stimulation.
Wen‐Min Zhong, Wenbin Zhang, Yu‐Xiang Zeng, JiYu Zhao, Ziqi Jia, Loganathan Veeramuthu, Guanglong Ding, Yan Yan, Meng Zhang, Su‐Ting Han, Vellaisamy A. L. Roy, Fengyun Wang, Chi‐Ching Kuo, Ye Zhou   +13 more
wiley   +1 more source

Méthodologie pour la mesure de charges d'espace par microscopie à sonde de Kelvin (KPFM)

, 2016
International audienceUne des principales propriétés d'un matériau diélectrique est de pouvoir stocker des charges électriques sous l'action d'une contrainte extérieure (champ électrique, irradiation…).
Villeneuve-Faure, Christina, Makasheva, Kremena, Boudou, Laurent, Mortreuil, Florian, Teyssedre, Gilbert   +4 more
core   +1 more source

KPFM Measurements and Carrier Mobility Estimation in QQT(CN)4 Organic Field Effect Transistors

, 2012
OFETs(Organic Field Effect Transistors) are field effect transistors(FETs) that consist of organic semiconductor materials as active semiconductor layers, instead of inorganic semiconductors.
이소윤
core  

Electrochemical Modulation of Laser‐Induced Covalent Functionalization of Graphene

Advanced Science, EarlyView.
Photoelectrochemical functionalization of graphene introduces the electrochemical potential as an additional parameter for the laser‐induced covalent modification of graphene. Tuning of the potential allows for amplification or suppression of the functionalization reaction with constant laser parameters, which enables in situ Raman analysis of ...
Tamara Nagel, Linda Feuerstein, Kevin Gerein, Stefan Wolff, Janina Maultzsch, Andreas Hirsch, Inez M. Weidinger, Frank Hauke   +7 more
wiley   +1 more source

High resolution nc-AFM and KPFM imaging of molecular assemblies at low temperature

, 2019
Le progrès important de la microscopie à force atomique sans contact (nc-AFM) au cours de la dernière décennie a permis d'étudier les propriétés structurelles et électroniques des molécules à l'échelle sub-moléculaire. Le processus de fonctionnalisation
Turek, Natalia
core  

Kelvin Probe Force Microscopy (KPFM) characterization of lanthanum lutetium oxide high-k dielectric thin films [PDF]

, 2013
Lanthanum lutetium oxide (LaLuO3) thin films were investigated considering their perspective application for industrial microelectronics. Scanning probe microscopy (SPM) techniques permitted to visualize the surface topography and study the electric ...
Geydt, Pavel
core  

Lunar‐Based Photothermal CO2 Reduction Strategy: Self‐Evolving Transient Active Interface and Band Engineering

Advanced Science, EarlyView.
A self‐evolving Pd/Ov‐FeTiO3 photothermal catalyst, inspired by lunar soil, enables efficient extraterrestrial CO2 conversion. The formation of transient active interfaces and oxygen vacancies extends light absorption to the infrared range and optimizes electron transfer.
Yahang Wang, Yuhuan Li, Quanxin Wang, Deng Li, Pakkin Leong, Meng Wang, Shi Feng, Runyang Mo, Xianjin Shi, Xiaohui Li, Gangqiang Zhu, Chipui Tang   +11 more
wiley   +1 more source