Results 101 to 110 of about 61,834 (304)

Chemical Control of Space Charge Barriers and Grain Boundary Resistances in Polycrystalline Ionic Conductors

Advanced Functional Materials, EarlyView.
Grain boundaries (GBs) in polycrystalline materials often block charge transport and drive degradation. Using Gd‐doped CeO2 as a model electrolyte used in fuel/electrolysis cells, we developed a core‐shell infiltration method to selectively modify GB chemistry and space charge potential, achieving orders‐of‐magnitude ionic conductivity changes.
Z. Sha, T. Defferriere, C. Gilgenbach, J. M. LeBeau, I. Lubomirsky, H. L. Tuller   +5 more
wiley   +1 more source

Solution‐Processed Mn‐Doped 2d Perovskite Wavelength Shifters for Noble‐Liquid Photon Detection

Advanced Functional Materials, EarlyView.
Solution‐processed Mn2+‐doped PEA2PbBr4 two‐dimensional perovskite films are demonstrated as large‐area wavelength shifters for noble‐liquid photon detectors. Mn2+ incorporation introduces a broad emission band at ∼620 nm with a large Stokes shift, suppressing self‐absorption and matching SiPM sensitivity.
Elisabetta Colantoni, Laura Basiricò, Andrea Ciavatti, Nicolò Tosi, Valentina Cicero, Massimo Loriggiola, Beatrice Fraboni   +6 more
wiley   +1 more source

Light‐Induced Field‐Tunneling Synapses in Solution‐Processed Van Der Waals Heterostructures for Scalable, Retina‐Inspired Optical Sensing

Advanced Functional Materials, EarlyView.
A scalable, solution‐processed WSe2/ZrO2‐x van der Waals heterostructure realizes a light‐induced field‐tunneling synapse (LIFTS) that activates exclusively under bright illumination, emulating the photopic adaptation of the human retina at the device level.
Kijeong Nam, Jihyun Kim, Soobeen Ji, In Soo Kim, Sejin Kim, Eungseon Yeon, Do Kyung Hwang, Iva Plutnarová, Zdeněk Sofer, Sang Min Won, Joohoon Kang   +10 more
wiley   +1 more source

Nanoparticle device for biomedical and optoelectronics applications [PDF]

, 2013
In this contribution, the aim is to present a nanoparticle device, operating in the visible regime based on the localized surface plasmon resonance (LSPR) phenomenon. The nanoparticle electromagnetic properties are evaluated by a new analytical model and
La Spada, Luigi, Iovine, Renato, Vegni, Lucio   +2 more
core   +1 more source

Coverage Range and Cost Comparison of Remote Antenna Unit Designs for In-building Radio over Fiber Technology [PDF]

ITB Journal of Information and Communication Technology, 2008
Future communication needs to be ubiquitous, broadband, convergent, and seamless. Radio over fiber (RoF) technology is one of the most important enabler in access network for the technologies.
Razali Ngah, Teguh Prakoso, Tharek Abdul Rahman   +2 more
doaj  

Network Topology Governs Photocatalytic Water Splitting in Organic Two‐Dimensional Crystals

Advanced Functional Materials, EarlyView.
Network topology in organic two‐dimensional crystals (O2DCs) dictates the photocatalytic water splitting performance. Kagome‐lattice O2DCs exhibit strong electron‐hole mass asymmetry, spatially separated carriers, and longer recombination lifetimes, exceeding rhombic isomers.
Preeti Bhauriyal, Thomas Heine
wiley   +1 more source

A Fem Mesh Generator For Large Size Aspect Ratio Problems With Applications In Optoelectronics [PDF]

, 2015
A new automatic and adaptive mesh generator for the FEM (Finite Element Method) focused on microwave and optoelectronic applications, is presented in detail. Particular attention is given to problems with large size aspect ratio.
Filho M.R., Silva J.P., Nobrega K.Z., Hernandez-Figueroa H.E., Pinho J.T.   +4 more
core  

Decoupling Electron and Phonon Transport in 3D‐Printed Bismuth Telluride via Synergistic Compositional Co‐Enrichment

Advanced Functional Materials, EarlyView.
In this work, we use direct ink writing (DIW) to 3D print Bi2Te3‐based materials and naturally induce hierarchical functional nanostructures, which reduced the lattice thermal conductivity by half, resulting in high zT of 0.87and 0.89 in p‐type and n‐type compounds, respectively, competitive with commercial materials.
Liangwei Hu, Wenhao Xie, Han Tang, Xiaolong Sun, Muyang Huang, Xiaolu Zhu, Yineng Gou, Weishuai Wang, Yun Zheng, Yue Hou, Guoqiang Wu, Ady Suwardi, Ziyu Wang   +12 more
wiley   +1 more source

Chemical nanotechnology talks IV (CNT4): Emerging applications in electronics, optoelectronics, energy and sensors Book of abstracts [PDF]

, 2003
Characterization of nanoparticles, nanocrystals, liquid crystals and semiconductive, conductive and conjugated polymers (PAA, polycarbonates, PANI, sulfonated PS, polyphenylenevinylene, polythiophen).
Gesellschaft fuer Chemische Technik und Biotechnologie e.V. (DECHEMA), Frankfurt am Main (Germany)
core  

Confinement‐Engineered Thermally Programmed Ion‐Gating Separator for Decoupling Thermal–Electrochemical Feedback in High‐Energy Lithium‐Ion Batteries

Advanced Functional Materials, EarlyView.
A new phase‐change material encapsulated membrane offers more thermal resilience stability and safety than the conventional separators for batteries. ABSTRACT Thermal runaway in lithium‐ion batteries arises from the intrinsic coupling between heat generation and ion transport, yet conventional shutdown separators primarily rely on passive pore collapse
Sumedha Rajpoot, Wei‐Nien Su, Sheng‐Chiang Yang, Yu Chun Huang, Wahyu Fiqih Virdiansyah, Ashok Ranjan, Han‐Hsuan Hsieh, Chia‐Lung Hsieh, Yu‐Wei Li, Yosef Nikodimos, Zabish Bilew Muche, Yu Jen Liang, Chia‐Chi Wang, Chih‐Ching Liu, Gao‐Jhih Liang, Chun‐Chen Yang, She‐Huang Wu, Bing Joe Hwang   +17 more
wiley   +1 more source