Results 31 to 40 of about 6,259 (264)

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

Advanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner, Dhananjeya Kumaar, Giacomo Torti, Killian Keller, Till Zellweger, Florian M. Schenk, Christoph Weilenmann, Daniel Chelladurai, Vara Prasad Jonnalagadda, Ghazi Sarwat Syed, Vanessa Wood, Jürg Leuthold, Alexandros Emboras, Maksym Yarema, Mathieu Luisier   +14 more
wiley   +1 more source

Band Alignments of GeS and GeSe Materials

Crystals, 2022
Here we present new findings of a comprehensive study of the fundamental physicochemical properties for GeS and GeSe in bulk form. UV and X-ray photoelectron spectroscopies (UPS/XPS) were employed for the experiments, which were carried out on in situ ...
Miłosz Grodzicki, Agata K. Tołłoczko, Dominika Majchrzak, Detlef Hommel, Robert Kudrawiec   +4 more
doaj   +1 more source

Solution‐Processed Two‐Dimensional Indium Oxide on Sodium‐Embedded Alumina for Reconfigurable Optoelectronic Synaptic Transistors

Advanced Functional Materials, EarlyView.
Wafer‐scale two‐dimensioanl In2Se3 oxidized into InOx on sodium‐embedded beta‐alumina enables multifunctional reconfigurable electronics. Sodium ions accumulate within distinct spatial distribution under drain‐controlle and gate‐controlled operation. Drain‐control operation gives controllability of ultraviolet‐driven optoelectronic synaptic conductance
Jinhong Min, Yonghyun Albert Kwon, Hyunbin Kim, Jihyun Kim, Myeongjin Jung, Jaewon Heo, Gwang Ya Kim, Vlastimil Mazanek, Zdeněk Sofer, In Soo Kim, Jeong Ho Cho, Hyesung Park, Sang Min Won, Joohoon Kang   +13 more
wiley   +1 more source

Biosynthesis of Nanomaterials by Shewanella Species for Application in Lithium Ion Batteries

Frontiers in Microbiology, 2018
Nanomaterials exhibit extraordinary properties based on their size, shape, chemical composition, and crystal structure. Owing to their unique properties nanomaterials are preferred over their bulk counterparts for a number of applications.
Tae-Yang Kim, Min Gyu Kim, Ji-Hoon Lee, Hor-Gil Hur   +3 more
doaj   +1 more source

A Compact Model of Ovonic Threshold Switch Combining Thermal Dissipation Effect

Frontiers in Neuroscience, 2021
Ovonic threshold switch (OTS) has received great attention in neuromorphic computing due to its support for high-density synapse array as a selector and leaky-integration-firing functions Hodgkin-Huxley neurons.
Shiqing Zhang, Hui Xu, Zhiwei Li, Sen Liu, Bing Song, Qingjiang Li   +5 more
doaj   +1 more source

Chiral Phase Change Nanomaterials

Advanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow, Md Shah Alam, Riad Yahiaoui, Evan M. Smith, Ryan Laing, Jules Gardener, Thomas A. Searles, Piyush J. Shah, Shivashankar Vangala, Joshua R. Hendrickson, Andrew M. Sarangan, Imad Agha   +11 more
wiley   +1 more source

Elucidating active sites and decomposition mechanisms for oxythiomolybdate clusters (Mo2O2Sx, x = 6;8) as catalyzers for hydrogen evolution reactions

Electrochemical Science Advances, 2022
We investigated the decomposition mechanism of Mo3S13 (chalcogenides) and Mo2O2Sx(x = 6,8) through Density Functional Theory, in particular Mo2O2Sx. Oxythiomolybdates are more stable than chalcogenides, and decompose through cathodic reactions, while ...
Samuel Bertolini, Timo Jacob
doaj   +1 more source

Programmable 2D Magnetic Clusterphenes With High Curie Temperature and Strong Magnetic Anisotropy via Cluster Assembly and Ligand Synergy

Advanced Functional Materials, EarlyView.
Programmable 2D magnetic clusterphenes are realized through a ligand‐mediated cluster‐assembly strategy. Direct linking of magnetic superatomic clusters enhances electron delocalization and symmetry breaking, enabling the concurrent strengthening of magnetic exchange interactions and spin–orbit coupling.
Junxiang Fu, Zhuohang Fang, Haidi Wang, Ye Yang, Weiduo Zhu, Weiwei Chen, Yu Zhang, Haixiao Xiao, Zhao Chen, Hongyan Lv, Xiaofeng Liu, Xiangyang Li, Xiao Cheng Zeng, Zhongjun Li   +13 more
wiley   +1 more source

Insights into the band gap anomalies of certain bismuth-based chalcogenides through ab initio calculations of structural and electronic properties

Results in Physics
Unlike other conventional metal chalcogenides, where the Perdew-Burke-Ernzerhof (PBE) functional tends to underestimate band gaps, bismuth (Bi) chalcogenides, particularly Bi selenides, exhibit a counterintuitive behaviour with band gap predictions that ...
Simeon A. Abolade, Shittu B. Akinpelu, David O. Obada, Syam Kumar R, Akinlolu Akande   +4 more
doaj   +1 more source

Advances on Sb₂Se₃ Solar Cells Fabricated by Physical Vapor Deposition Techniques

Solar, 2023
Sb2Se3, as an earth-abundant and low-toxic material, has emerged as one of the most interesting absorbers for clean renewable power generation technologies.
Roberto Jakomin, Stefano Rampino, Giulia Spaggiari, Francesco Pattini   +3 more
doaj   +1 more source