Results 81 to 90 of about 38,986 (265)

Coherently confined single-metal-atom chains in 2D semiconductors

Nature Communications
Single-metal-atom chains (SMACs) possess a variety of unique properties and functionalities but suffer from ambient vulnerability due to their delicate one-atom-width structures. While some SMACs can be effectively stabilized by nanochannel confining, it
Wen Qin, Shasha Guo, Zixi Liu, Peikun Zhang, Chao Zhu, Yao Wu, Ruixi Qiao, Zheng Liu, Wanlin Guo, Zhuhua Zhang   +9 more
doaj   +1 more source

Crystal structures and hydrogen bonding in the isotypic series of hydrated alkali metal (K, Rb and Cs) complexes with 4-aminophenylarsonic acid

Acta Crystallographica Section E: Crystallographic Communications, 2017
The structures of the alkali metal (K, Rb and Cs) complex salts with 4-aminophenylarsonic acid (p-arsanilic acid) manifest an isotypic series with the general formula [M2(C6H7AsNO3)2(H2O)3], with M = K {poly[di-μ3-4-aminophenylarsonato-tri-μ2-aqua ...
Graham Smith, Urs D. Wermuth
doaj   +1 more source

Selection Strategies for Flexible Pressure Sensor Electrode Materials Toward Ultrafast Response

Advanced Functional Materials, EarlyView.
This study reveals, for the first time, how the electrode–organic interface governs the temporal performance of flexible pressure sensors. By pairing high‐conductivity CVD PEDOT with commonly used metal electrodes, the authors demonstrate that interfacial energy alignment dictates microsecond‐scale response, providing a straightforward design strategy ...
Jinwook Baek, Yuxuan Zhang, Hyeondong Yang, Minyoung Kim, Pavlos P. Vlachos, Jeongok Choe, Bo‐Gyu Bok, Kejie Zhao, Han‐Wook Song, Min‐Seok Kim, Martin Byung‐Guk Jun, Sunghwan Lee   +11 more
wiley   +1 more source

DUAL-FREQUENCY TERAHERTZ LASER [PDF]

Radio Physics and Radio Astronomy
Subject and Purpose. The development of the terahertz (THz) frequency range reflects recent progress in radiation sources, in particular, THz (submillimeter) lasers.
M. I. Dzyubenko, Yu. E. Kamenev, V. P. Radionov   +2 more
doaj   +1 more source

Metals in Metal Salts: A Copper Mirror Demonstration

Journal of Chemical Education, 2010
A simple lecture demonstration is described to show the latent presence of metal atoms in a metal salt. Copper(II) formate tetrahydrate is heated in a round-bottom flask forming a high-quality copper mirror.
openaire   +2 more sources

Toughening β‐Ga2O3 via Mechanically Seeded Dislocations

Advanced Functional Materials, EarlyView.
β‐Ga2O3 is promising for next‐generation semiconductors but its brittleness limits flexible and high‐precision applications. Here, mechanically seeded dislocations introduced by surface deformation improved damage tolerance in (001) β‐Ga2O3. Nanoindentation and characterization show dislocations suppress cleavage cracks by enabling stable plastic ...
Zanlin Cheng, Jiawen Zhang, Peng Gao, Guosong Zeng, Xufei Fang, Wenjun Lu   +5 more
wiley   +1 more source

The Effect of Purcell Cavities on the Lifetime of Thermally Activated Delayed Fluorescent Emitters

Advanced Functional Materials, EarlyView.
A pressing challenge to OLED displays and lighting is to balance high efficiency and long operational lifetime in the deep blue spectrum. The Purcell effect can reduce the triplet density and hence the probability for destructive energy‐driven triplet annihilation events that limit the OLED lifetime. Here we study of the Purcell effect on two different
Sritoma Paul, Haonan Zhao, Collin N. Muniz, Mark E. Thompson, Stephen R. Forrest   +4 more
wiley   +1 more source

Chiral Optical Tamm States at the Interface between an All-Dielectric Polarization-Preserving Anisotropic Mirror and a Cholesteric Liquid Crystal

Crystals, 2019
As a new localized state of light, the chiral optical Tamm state exists at the interface between a polarization-retaining anisotropic mirror and a substance with optical activity.
Natalya V. Rudakova, Ivan V. Timofeev, Rashid G. Bikbaev, Maxim V. Pyatnov, Stepan Ya. Vetrov, Wei Lee   +5 more
doaj   +1 more source

Gram‐Scale Production of Iron Oxide Rubik‐Cube Nanoparticles: New Tools for the Clinical Translation of Magnetic Hyperthermia and Magnetic Particle Imaging

Advanced Functional Materials, EarlyView.
This work reports the first gram‐scale solvothermal synthesis of ‘Rubik's cube’ nanoparticles—cubic, dendritic multicore structures with tuneable sizes and exceptional magnetic heating performance. Featuring iron oxide single‐domain character, with low coercivity fields, high magnetization, and strong MPI signals, they enable viscosity‐independent ...
Giusy M. R. Rizzo, Niccolò Silvestri, Nabila Jarmouni, Helena Gavilán, Hamza Yakubu, Daniel Arenas‐Esteban, Sara Bals, Paola Parlanti, Mauro Gemmi, Ross Clark Prado, Anna Cristina S. Samia, Verónica Salgueiriño, Teresa Pellegrino   +12 more
wiley   +1 more source

Selective self-assembly of 2,3-diaminophenazine molecules on MoSe2 mirror twin boundaries

Nature Communications, 2019
Mirror twin boundaries (MTBs) have been observed as metallic line defects in 2D transition metal dichalcogenides, but their chemical properties are not well understood. Here, the authors show that MTB defect networks on MoSe2 are more chemically reactive
Xiaoyue He, Lei Zhang, Rebekah Chua, Ping Kwan Johnny Wong, Arramel Arramel, Yuan Ping Feng, Shi Jie Wang, Dongzhi Chi, Ming Yang, Yu Li Huang, Andrew Thye Shen Wee   +10 more
doaj   +1 more source