Results 41 to 50 of about 24,430 (263)

Shaping Ti3C2 MXene Nanospheres for Precision Near‐Infrared Photothermal Therapy

Advanced Functional Materials, EarlyView.
In this study, we report producing spherical MXenes via fs laser fragmentation of Ti3C2 flakes in liquid medium. The nanoparticles demonstrated pronounced light absorption and high photothermal conversion efficiencies of 68% and 63% under heating with NIR‐I and NIR‐II lasers, respectively.
Julia S. Babkova, Ivan V. Zelepukin, Konstantin G. Shevchenko, Gleb V. Tikhonowski, Lyubov V. Gorelik, Anton A. Popov, Anna S. Sogomonyan, Alina Yu. Kapitannikova, Ivan S. Kazantsev, Dmitry V. Dyubo, Daria A. Panova, Daniil I. Tselikov, Anton A. Minnekhanov, Aziz B. Mirkasymov, Georgy A. Ermolaev, Alexander V. Syuy, Gleb I. Tselikov, Aleksey V. Arsenin, Andrei V. Kabashin, Kostya S. Novoselov, Sergey M. Deyev, Valentyn S. Volkov   +21 more
wiley   +1 more source

Silicon Nitride Photonic Integration Platforms for Visible, Near-Infrared and Mid-Infrared Applications

Sensors, 2017
Silicon nitride photonics is on the rise owing to the broadband nature of the material, allowing applications of biophotonics, tele/datacom, optical signal processing and sensing, from visible, through near to mid-infrared wavelengths.
Pascual Muñoz, Gloria Micó, Luis A. Bru, Daniel Pastor, Daniel Pérez, José David Doménech, Juan Fernández, Rocío Baños, Bernardo Gargallo, Rubén Alemany, Ana M. Sánchez, Josep M. Cirera, Roser Mas, Carlos Domínguez   +13 more
doaj   +1 more source

Atomic‐Scale Light Coupling Control in Ultrathin Photonic Membranes

Advanced Functional Materials, EarlyView.
Ultrathin photonic nanomembranes provide atomic‐scale control over the coupling between incident light and high‐Q photonic modes, enabling angstrom‐level resonance tuning and strong field confinement. When integrated with TMD monolayers, they further yield enhanced light–matter interactions, offering a versatile platform for advancing quantum photonics,
Chih‐Zong Deng, Chun‐Hao Chiang, Sunhao Shi, Jui‐Han Fu, Yen‐Ju Wu, Kuniaki Konishi, Vincent Tung, Chun‐Wei Chen, Ya‐Lun Ho   +8 more
wiley   +1 more source

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

Advanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa, Lin‐Ding Yuan, Stephen D. Wilson, James M. Rondinelli   +3 more
wiley   +1 more source

Transparent polycrystalline cubic silicon nitride [PDF]

Scientific Reports, 2017
AbstractGlasses and single crystals have traditionally been used as optical windows. Recently, there has been a high demand for harder and tougher optical windows that are able to endure severe conditions. Transparent polycrystalline ceramics can fulfill this demand because of their superior mechanical properties.
Nishiyama, Norimasa, Ishikawa, Ryo, Kulik, Eleonora, Ikuhara, Yuichi, Wakai, Fumihiro, Irifune, Tetsuo, Ohfuji, Hiroaki, Marquardt, Hauke, Kurnosov, Alexander, Taniguchi, Takashi, Kim, Byung-Nam, Yoshida, Hidehiro, Masuno, Atsunobu, Bednarcik, Jozef   +13 more
openaire   +3 more sources

Through Diamond Robust Surface Enhanced Raman Spectroscopy

Advanced Functional Materials, EarlyView.
Thin film diamond growth offers a unique opportunity for Surface Enhanced Raman Spectroscopy (SERS); the encapsulation of plasmonic nanostructures within a transparent, chemically stable, and physically robust coating. The diamond acts as both a window and protective layer, enabling illumination of the plasmonic nanostructures through the diamond ...
Kieran N. Twaddle, Rebecca J. Watkins, Ralph J. Moors, Massimiliano L.A. Ramsay, Richard B. Jackman   +4 more
wiley   +1 more source

Research progress on sintering additive used for high thermal conductivity silicon nitride ceramics

Fenmo yejin jishu
Silicon nitride (Si3N4) is considered to be the best ceramic material for the comprehensive properties. High thermal conductivity and the excellent mechanical properties make it widely used as the ceramic substrate in electric vehicles and hybrid ...
WANG Yuelong, WU Haoyang, JIA Baorui, ZHANG Yiming, ZHANG Zhirui, LIU Chang, TIAN Jianjun, QIN Mingli   +7 more
doaj   +1 more source

Micro-Hole Drilling on Silicon Nitride Ceramics in Ethanol

Tribology Online, 2009
Micro-hole drilling of engineering ceramics has potential for application to fuel injection nozzles and fiber spinning nozzles, etc. To date among engineering ceramics, less study has been reported on the micro-hole drilling of silicon nitride.
Tsuneaki Yamabe, Yuji Enomoto, Takashi Kawamura, Yuko Hibi   +3 more
doaj   +1 more source

Copper‐Based Crystalline‐Metallic Glass Composite Thin Films: A Novel Material with Enhanced Strength and Thermally Stable Nanotwins

Advanced Functional Materials, EarlyView.
A Cu‐based crystal‐glass composite with high‐density twins is identified by a fast screening technique using combinatorial sputtering together with XRD and nanoindentation mapping. This bamboo‐like structure demonstrates homogenous plastic flow and retains high strength during in situ high temperature tests, up to 1 GPa at 550°C, owing to those ...
Chunhua Tian, Amit Sharma, Krzysztof Wieczerzak, Alexander Groetsch, Manish Jain, Nicolò Maria della Ventura, Remo Widmer, Fedor F. Klimashin, Johann Michler, Jakob Schwiedrzik, Xavier Maeder   +10 more
wiley   +1 more source

Hydroxyapatite coating on silicon nitride surfaces using the biomimetic method

Materials Research, 2008
Silicon nitride based ceramics are promising candidates for biomedical applications due to their chemical and dimensional stability associated to suitable mechanical strength and relatively high fracture toughness.
Cecilia Chaves Guedes e Silva, Eliana Cristina da Silva Rigo, Juliana Marchi, Ana Helena de Almeida Bressiani, José Carlos Bressiani   +4 more
doaj   +1 more source