Results 91 to 100 of about 2,042,987 (291)

Scanning tunneling microscopy and spectroscopy of nanometer scale metallic features on silicon surfaces [PDF]

, 2011
Nanometer scale metals are of great interest due to their potential applications in the future of molecular/atomic scale devices. For example, nanometer scale metal contacts on semiconducting single-walled carbon nanotubes (SWNTs) can determine the ...
Ye, Wei
core  

Protein‐Nanoarchitectures for Low‐Field Intracellular Electro‐Immunomodulation

Advanced Functional Materials, EarlyView.
DHQ‐SDH‐mediated binding of AuNPs drives the formation of interconnected, chain‐like nanoarchitectures with enhanced electrical conductivity. These conductive assemblies undergo macrophage uptake and enable low‐field electrical stimulation, promoting M1‐to‐M2 phenotypic switching with decreased iNOS and increased CD206 expression. Such protein‐mediated
Viktoriya Pakharenko, Djanira Rodrigues Negrão, Tanmay Gupta, Robert Jeng, Otavio Augusto Titton Dias, Maia Jaffer‐Diaz, Dinesh Christendat, Mohini Sain   +7 more
wiley   +1 more source

Simultaneous current, force and dissipation measurements on the Si(111) 7×7 surface with an optimized qPlus AFM/STM technique

Beilstein Journal of Nanotechnology, 2012
We present the results of simultaneous scanning-tunneling and frequency-modulated dynamic atomic force microscopy measurements with a qPlus setup. The qPlus sensor is a purely electrical sensor based on a quartz tuning fork. If both the tunneling current
Zsolt Majzik, Martin Setvín, Andreas Bettac, Albrecht Feltz, Vladimír Cháb, Pavel Jelínek   +5 more
doaj   +1 more source

Probing Type-II Multiferroicity in Monolayer NiBr₂. [PDF]

Adv Sci (Weinh)
Type‐II multiferroicity is demonstrated in monolayer NiBr2. Scanning tunneling microscopy resolves ferroelectric polarization arising from non‐collinear magnetic order, and reciprocal control with electric and magnetic fields confirms intrinsic magnetoelectric coupling.
Cahlík A, Karjasilta A, Mishra A, Drost R, Amini M, Arshad J, Arslan BG, Liljeroth P.   +7 more
europepmc   +2 more sources

Sub‐1 ms Optoelectronic Synapse Based on {ZnCdO/ZnO} Multilayer Structure for High‐Speed Neuromorphic Vision Systems

Advanced Functional Materials, EarlyView.
Eu‐doped {ZnCdO/ZnO} structures grown on Si are developed, showcasing dual‐functionality controlled by europium doping. While high europium concentration transforms the device into an ultrafast, self‐powered photodetector, low‐doped structures can be used as an optoelectronic synapse.
Igor Perlikowski, Eunika Zielony, Adrian Kaim, Ewa Przeździecka   +3 more
wiley   +1 more source

Hybrid Ferroelectric Tunnel Junctions with Intrinsic Nonlinearity and Self‐Rectification via Interfacial Reconstruction

Advanced Functional Materials, EarlyView.
Rapid thermal annealing reconstructs the BCFO/Nb:STO interface into an atomically thin reconstructed interfacial layer, which reshapes the tunneling barrier and converts a high‐TER ferroelectric tunnel junction into an intrinsically nonlinear, self‐rectifying device.
Hojin Lee, Joonbong Lee, Jinho Byun, Sang‐Hyeok Yang, A young Cho, Sangwoo Lee, Dae Haa Ryu, Hyunbin Chung, Hee Seo Yun, Moon Seop Choi, Yesul Choi, Sungkyun Park, Min‐Hyung Jung, Dongwon Lee, Yoon‐Uk Heo, Hu Young Jeong, Hongseok Kim, Shinhyeong Lee, Yunseok Kim, Young‐Min Kim, Jaekwang Lee, Taekjib Choi   +21 more
wiley   +1 more source

Sensing the quantum limit in scanning tunnelling spectroscopy

Nature Communications, 2016
AbstractThe tunnelling current in scanning tunnelling spectroscopy (STS) is typically and often implicitly modelled by a continuous and homogeneous charge flow. If the charging energy of a single-charge quantum sufficiently exceeds the thermal energy, however, the granularity of the current becomes non-negligible. In this quantum limit, the capacitance
Ast, Christian R., Jaeck, Berthold, Senkpiel, Jacob, Eltschka, Matthias, Etzkorn, Markus, Ankerhold, Joachim, Kern, Klaus   +6 more
openaire   +7 more sources

Growth and characterisation of pentacene thin films on clean and modified metal surfaces [PDF]

, 2006
The primary focus of this PhD is the investigation of pentacene thin films grown on metal substrates. Numerous techniques have been used to investigate these films including synchrotron based photoelectron emission spectroscopy (PES) and near edge x-ray ...
McDonald, Oisin
core   +2 more sources

Electronic band dispersion of graphene nanoribbons via Fourier-transformed scanning tunneling spectroscopy [PDF]

, 2015
The electronic structure of atomically precise armchair graphene nanoribbons of width N=7 (7-AGNRs) are investigated by scanning tunneling spectroscopy (STS) on Au(111).
Talirz, L., Söde, Hajo, Feng, Xinliang, Gröning, Oliver, Talirz, Leopold, Ruffieux, P., Pignedoli, Carlo Antonio, Müllen, Klaus, Fasel, Roman, Berger, Reinhard, Söde, H., Ruffieux, Pascal, Gröning, O., Fasel, R., Pignedoli, C., Berger, R., Feng, X., Müllen, K.   +17 more
core   +1 more source

Ferroelectric Quantum Dots for Retinomorphic In‐Sensor Computing

Advanced Materials, EarlyView.
This work has provided a protocol for fabricating retinomorphic phototransistors by integrating ferroelectric ligands with quantum dots. The resulting device combines ferroelectricity, optical responsiveness, and low‐power operation to enable adaptive signal amplification and high recognition accuracy under low‐light conditions, while supporting ...
Tingyu Long, Huanyu Zhou, Jaewan Ko, Hongwei Tan, Jaemin Lim, Yanfei Zhao, Daehan Kang, Eojin Yoon, Gyeong‐Tak Go, Somin Kim, Seung‐Woo Lee, Chan‐Yul Park, Hyojun Choi, Hyeran Kim, Hyung Joong Yun, Sung Hyuk Park, Kwan Sik Park, Jeong Woo Park, Mungeun Kim, Yong Soo Cho, Ho Won Jang, Wenqiang Yang, Min Hyuk Park, Wan Ki Bae, Sebastiaan van Dijken, Joona Bang, Tae‐Woo Lee   +26 more
wiley   +1 more source