Results 31 to 40 of about 11,981 (217)

Nanoscale ion implantation using focussed highly charged ions

New Journal of Physics, 2020
We introduce a focussed ion beam (FIB) based ion implanter equipped with an electron beam ion source (EBIS), able to produce highly charged ions. As an example of its utilisation, we demonstrate the direct writing of nitrogen-vacancy centres in diamond ...
Paul Räcke, Ralf Wunderlich, Jürgen W Gerlach, Jan Meijer, Daniel Spemann   +4 more
doaj   +1 more source

Dose-effect relationship of edible fungi with low-energy heavy-ion implantation

Fushe yanjiu yu fushe gongyi xuebao, 2021
To reveal the dose-effect relationship of edible fungi via low-energy heavy-ion implantation, the conidia of three species of edible fungi were irradiated with 15 keV nitrogen ions at different dosages (0, 2, 4, 6, 8, 10, 12, and 14)×1015 cm-2.
QI Junwei, CHEN Yanhua, CHEN Henglei
doaj   +1 more source

A New Strategy for Creating Quantum Light Emitters Via Post‐Growth Hydrogen‐Ion Irradiation of III‐V Nanowires

Advanced Functional Materials, EarlyView.
A post‐growth method is demonstrated to realize energy‐tunable quantum emitters in GaAs/GaAsN/GaAs core–multishell nanowires on a Si substrate. By combining the N‐induced bandgap reduction with H‐ion irradiation, the GaAsN potential landscape is engineered, enabling isolated, narrow emission lines that function as single‐photon sources with g(2)(0) ∼ 0.
Akant Sagar Sharma, Paolo De Vincenzi, Nadine Denis, Francesca Santangeli, Riccardo Pallucchi, Harikrishnan Gopalakrishnan, Elena Blundo, Antonio Polimeni, Marco Felici, Fumitaro Ishikawa, Marta De Luca   +10 more
wiley   +1 more source

Beyond Thin Film Limits—Superhard and Hydrogen‐Free Amorphous Carbon Coatings With Over 100 µm Thickness

Advanced Functional Materials, EarlyView.
For the first time, an extreme‐thick laser‐arc PVD ta‐C (DLC) coating exceeding 100 µm is demonstrated, opening up new possibilities for ultra‐high load bearing capacity. This superhard amorphous carbon architecture combines >50% sp3 bonding, robust adhesion and self‐supporting performance, shielding substrates from plastic flow under extreme contact ...
Martin Zawischa, Frank Kaulfuß, Stefan Makowski, Volker Weihnacht   +3 more
wiley   +1 more source

Enhancement of wear resistance in TC6 titanium alloy through a combined treatment of laser shock peening and nitrogen ion implantation at 300 °C

Journal of Materials Research and Technology
The TC6 titanium alloy was subjected to a combined treatment of laser shock peening (LSP) followed by nitrogen ion implantation at 300 °C. The effects of this combined treatment on the microstructure, surface mechanical properties, and tribological ...
Yuliang Li, Xiaoqing Liang, Zhenyang Cao, Huailin Zhang, Mo Lang, Cenchao Xie, Sihai Luo, Weifeng He   +7 more
doaj   +1 more source

Rare‐Earth–Functionalized Carbon Dot Hydrogels as Mechanically Robust Antibacterial Wound Dressings

Advanced Healthcare Materials, EarlyView.
The schematic depicts a dynamically cross‐linked PVA hydrogel network in which reversible borate ester bonds and hydrogen‐bonding interactions integrate lanthanum‐doped carbon dots (La‐CDs) and dipotassium glycyrrhizinate (DPG) to form a mechanically robust, multifunctional matrix.
Shih‐Han Tsai, Ramadhass Keerthika Devi, Muthusankar Ganesan, Guo‐Ping Chang Chien, Chun Che Lin   +4 more
wiley   +1 more source

Grain refinement mechanism of nitrogen ion implantation in 7075-T651 aluminum alloy: Insights from the cellular automaton method

Journal of Materials Research and Technology
Ion implantation can strengthen metal surfaces by inducing grain refinement. However, the refinement mechanism remains unclear, which affects the precise application of the process.
Yelin Zeng, Tingting Jiang, Jinyuan Tang, Jiangping Zhu, Xiaocheng Shen, Yihao Ling   +5 more
doaj   +1 more source

Surface Preparation and Characterization of Gamma-Phase Stainless Steel for Nitrogen Ion Implantation: A Comparative Study with Alpha-Phase Stainless Steel [PDF]

E3S Web of Conferences
The objective of this work is to examine the process of preparing and characterizing gamma-phase stainless steel for nitrogen ion implantation, therefore comparing its characteristics with those of alpha-phase stainless steel.
Satyanarayana Kosaraju, Prakash Sunil, Kataria Ansh, Sharma Gazal, Mittal Sachin, Bhardwaj Sweta   +5 more
doaj   +1 more source

Chemical Strategies for Multistimuli Responsive Dynamic Covalent Materials in Regenerative Medicine

Advanced Healthcare Materials, EarlyView.
Multistimuli responsive dynamic covalent materials integrate reversible chemistry with the complex chemical, mechanical, and biochemical cues of regenerative environments. This review highlights chemical strategies based on orthogonal dynamic bonds, multicomponent networks, and hierarchical architectures to regulate mechanics, degradation, and ...
Saurabh Joshi, Matthew B. Baker, Dominik Schauenburg   +2 more
wiley   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

Advanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source