Results 81 to 90 of about 589,919 (368)

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

Advanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum, Vinavadini Ramnarain, Nathaly Ortiz Peña, Dris Ihiawakrim, Clément Sanchez, Ovidiu Ersen   +5 more
wiley   +1 more source

Enhanced Terahertz Thermoelectricity Via Engineered Van Hove Singularities and Nernst Effect in Moiré Superlattices

Advanced Functional Materials, EarlyView.
Moiré band engineering in graphene/hexagonal boron nitride–based superlattices unlocks van Hove singularities (VHSs) for terahertz (THz) optoelectronics. Tuning the Fermi level near these singularities, associated with secondary neutrality points (SNPs), enhances the photothermoelectric response.
Leonid Elesin, Arthur L. Shilov, Subhajit Jana, Ilya Mazurenko, Pierre A. Pantaleon, Mikhail Kashchenko, Nikita Krivovichev, Viacheslav Dremov, Igor Gayduchenko, Takashi Taniguchi, Kenji Watanabe, Yibo Wang, Kostya S. Novoselov, Dmitry A. Svintsov, Grigory Goltsman, Elena I. Titova, Denis A. Bandurin   +16 more
wiley   +1 more source

Non-chiral one-dimensional states inside AB/BA domain walls in bilayer graphene

Academia Nano
Boundaries between structural twins of bilayer graphene (so-called AB/BA domain walls (DWs)) are often discussed regarding the formation of topologically protected valley-polarized chiral states.
Christian Moulsdale, Vladimir V. Enaldiev, Andre K. Geim, Vladimir I. Fal’ko   +3 more
doaj   +1 more source

Synthesis and capacitive performance of globular MnO₂ flowers anchored graphene composites

Cailiao gongcheng, 2019
A new type globular MnO2 flowers anchored graphene composites was synthesized via redox reactions among potassium permanganate/ethanol/graphene. The crystalline structure, chemical component, and microstructure of the composites were determined by XRD ...
CHEN Xiang, YAN Shao-jiu, NAN Wen-zheng, WANG Nan, PENG Si-kan, WANG Chen, DAI Sheng-long   +6 more
doaj   +1 more source

Rebar Graphene

ACS Nano, 2014
As the cylindrical sp(2)-bonded carbon allotrope, carbon nanotubes (CNTs) have been widely used to reinforce bulk materials such as polymers, ceramics, and metals. However, both the concept demonstration and the fundamental understanding on how 1D CNTs reinforce atomically thin 2D layered materials, such as graphene, are still absent.
Yan, Zheng, Peng, Zhiwei, Casillas, Gilberto, Lin, Jian, Xiang, Changsheng, Zhou, Haiqing, Yang, Yang, Ruan, Gedeng, Raji, Abdul-Rahman O, Samuel, Errol LG, Hauge, Robert H, Yacaman, Miguel Jose, Tour, James M   +12 more
openaire   +4 more sources

Design Strategies and Emerging Applications of High‐Performance Flexible Piezoresistive Pressure Sensors

Advanced Functional Materials, EarlyView.
Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo, Artur Ciesielski, Paolo Samorì   +2 more
wiley   +1 more source

Graphene superstrates for metamaterials

, 2010
The electromagnetic properties of a photonic metamaterial are dramatically modified by a graphene monolayer superstrate. The strong polarizability of the graphene layer combined with the Fano-type, resonant plasmonic modes supported by the metamaterial ...
Papasimakis, N., Di Fabrizio, E., Zheludev, N.I., Shen, Z.X., De Angelis, F., Nikolaenko, A.E., Luo, Z.   +6 more
core  

Engineering Intelligent Graphene Oxide‐Cellulose Membranes: Suppressing Thermal Runaway for a Safer Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, EarlyView.
A novel thermos‐responsive hydroxypropyl cellulose/graphene oxide (HPC/GO) composite membrane is fabricated for reversible temperature‐gated ion transport in aqueous zinc‐ion batteries. Enabled by LCST‐driven structural transition, unimpeded ion diffusion at room temperature delivers high capacity, while elevated temperature suppresses transport; full ...
Xueli Bi, Kou Yang, Shushen Zheng, Juncheng Wang, Meng Li, Zhenzhen Wu, Yulin Zhong, Daria V. Andreeva, Kostya S. Novoselov, Shanqing Zhang   +9 more
wiley   +1 more source

Terahertz saturable absorbers from liquid phase exfoliation of graphite

Nature Communications, 2017
Graphene shows promise for saturable absorption, a key property for ultrafast lasing, yet graphene saturable absorbers operating in the terahertz region suffer from low absorption modulation.
Vezio Bianchi, Tian Carey, Leonardo Viti, Lianhe Li, Edmund H. Linfield, A. Giles Davies, Alessandro Tredicucci, Duhee Yoon, Panagiotis G. Karagiannidis, Lucia Lombardi, Flavia Tomarchio, Andrea C. Ferrari, Felice Torrisi, Miriam S. Vitiello   +13 more
doaj   +1 more source

Atomically controlled substitutional boron-doping of graphene nanoribbons [PDF]

, 2015
Boron is a unique element in terms of electron deficiency and Lewis acidity. Incorporation of boron atoms into an aromatic carbon framework offers a wide variety of functionality.
Adam S. Foster, Osumi, Shinichiro, Saito, Shohei, Kawai, Shigeki, Shigeki Kawai, Shohei Saito, Shigehiro Yamaguchi, Ernst Meyer, Shinichiro Osumi, Meyer, Ernst, Spijker, Peter, Peter Spijker, Yamaguchi, Shigehiro, Foster, Adam S.   +13 more
core   +1 more source