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相关论文: Fluorescent Carbon Nanoparticle: Synthesis, Charac…

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It is known that, by taking advantage of heteroatom doping, the electronic states and transition channels in carbon nano-dots (CNDs) can be effectively modulated. Thus, the photoluminescence (PL) properties of CNDs can be changed. For…

介观与纳米尺度物理 · 物理学 2021-11-30 Wenli Li , Ju Tang , Yuzhao Li , Han Bai , Weizuo Zhang , Jin Zhang , Yiming Xiao , Wen Xu

This research work showcases a non-toxic approach to synthesize carbon nanoparticles (CNPs) from various medicinal plants namely Syzygium cumini, Holy basil, Azadirachta indica A, Psidium guajava, Mangifera indica, and Bergera koenigii…

化学物理 · 物理学 2024-01-22 Parul Singh , Aniruddha Dan , Padma Priya Kannan , Mukesh Dhanka , Dhiraj Bhatia , Jhuma Saha

Carbon Nanoflakes (CNFs) with average diameters of about 30 nm have been prepared and isolated in bulk quantities by a single-step oxidation procedure using single-wall carbon nanotube arc-discharge material and nitric acid. The CNFs are…

材料科学 · 物理学 2009-08-13 Christoph G. Salzmann , Valeria Nicolosi , Malcolm L. H. Green

This work reports aspect related to chemical capping synthesis of nano-sized particles of nickel oxide. It is a simple, novel and cost effective method. The average particle size, specific surface area, crystallinity index are estimated…

化学物理 · 物理学 2014-02-04 M. Nowsath rifaya , T. Theivasanthi , M. Alagar

Cigarette smoke is one of the six major pollution sources in the room air. It contains large number of particles with size less than 10 nm. There exist carbon dots (CDs) in cigarette smoke which have strong fluorescence and with good…

生物物理 · 物理学 2022-12-16 Yuzhao Li , Han Bai , Jin Zhang , Ju Tang , Yingfu Li , Weizuo Zhang , Zhexian Zhao , Yiming Xiao , Yanfei Lü

Single-nanotube photometry was used to measure the product of absorption cross-section and fluorescence quantum yield for 12 (n,m) structural species of semiconducting SWNTs in aqueous SDBS suspension. These products ranged from 1.7 to 4.5…

Carbon nanofibers (CNF) are used as components of planar photonic crystals. Square and rectangular lattices and random patterns of vertically aligned CNF were fabricated and their properties studied using ellipsometry. We show that detailed…

Metal nanoclusters (NCs), typically consisting of a few to tens of metal atoms, bridge the gap between organometallic compounds and crystalline metal nanoparticles. As their size approaches the Fermi wavelength of electrons, metal NCs…

生物大分子 · 定量生物学 2020-01-01 Yu An , Ying Ren , Jing Tang , Jun Chen , Baisong Chang

Porous nanomaterials have recently attracted a lot of attention due to various properties and potential applications. In this study, carbon nanoparticles (CNPs) were synthesized by the one-pot hydrothermal carbonization (HTC) using…

生物大分子 · 定量生物学 2025-07-25 Mohaddeseh Sharifi , S. Hajir Bahrami

We present a new kind of fluorescent oxide nanoparticles with properties well suited to active-tip based near-field optics. These particles with an average diameter in the range 5-10 nm are produced by Low Energy Cluster Beam Deposition…

材料科学 · 物理学 2008-12-09 A. Cuche , B. Masenelli , G. Ledoux , D. Amans , C. Dujardin , Y. Sonnefraud , P. Melinon , S. Huant

This study introduces the high yield, electrolytic synthesis of carbon nanofibers, CNFs, directly from carbon dioxide. Production of a precious commodity such as CNFs from atmospheric carbon dioxide provides impetus to limit this greenhouse…

化学物理 · 物理学 2015-10-28 Stuart Licht

Growth of carbon nanotubes (CNTs) was performed by atmospheric pressure chemical vapour deposition (APCVD) of propane on Si(111) with a pre-treated Ni overlayer acting as a catalyst. Prior to the growth of CNTs, a thin film of Ni was…

材料科学 · 物理学 2019-06-04 J Sengupta , SK Panda , C Jacob

The experiment was conducted to synthesize carbon nanospheres of different sizes by controlling the temperature in polycondensation reaction of glucose under hydrothermal process. The surface morphology, structural, optical, and thermal…

材料科学 · 物理学 2017-06-20 Priya Karna , Sunil Karna

Nanoparticle-based fluorescent sensors have emerged as a competitive alternative to small molecule sensors, due to their excellent fluorescence-based sensing capabilities. The tailorability of design, architecture, and photophysical…

应用物理 · 物理学 2020-05-19 Anil Chandra , Saumya Prasad , Giuseppe Gigli , Loretta L. del Mercato

A complex InAs/CdSe/ZnSe Core/Shell1/Shell2 (CSS) structure is synthesized, where the intermediate CdSe buffer layer decreases strain between the InAs core and the ZnSe outer shell. This structure leads to significantly improved…

应用物理 · 物理学 2021-05-25 Assaf Aharoni , Taleb Mokari , Inna Popov , Uri Banin

Fluorescent nanoparticles are widely utilized in a large range of nanoscale imaging and sensing applications. While ultra-small nanoparticles (size <10 nm) are highly desirable, at this size range their photostability can be compromised due…

Synthetic opals, based on self-assembly of polymeric nanoparticles generally produces fainted/pale structural colors due to too many lattice flaws in the structures. Here we produces carbon nanotubes (CNTs) incorporated high quality 3D…

应用物理 · 物理学 2020-09-22 Ravi Shanker , Izabela Jurewicz , Alan Dalton

Fluorophores emitting in the NIR-IIb wavelength range (1.5 micron - 1.7 micron) show great potential for bioimaging due to their large tissue penetration. However, current fluorophores suffer from poor emission with quantum yields ~2% in…

材料科学 · 物理学 2023-01-26 Ananth Kamath , Richard D. Schaller , Philippe Guyot-Sionnest

Recent advances in nanotechnology have provided new materials which have the potential to surpass copper and aluminum alloys in electrical conductivity, weight and ampacity [2-6]. Among these carbon nanotubes (CNTs) stand out due to their…

应用物理 · 物理学 2020-08-28 Farhad Daneshvar , Hung-Jue Sue

The assembly of aligned carbon nanotubes (CNT) into fibers (CNTF) is a convenient approach to exploit and apply the unique physico-chemical properties of CNTs in many fields. CNT functionalization has been extensively used for their…

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