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Light emitting electrospun nanofibers of poly-[(9,9-dioctylfluorenyl-2,7-diyl)-co-(N,N'-diphenyl)-N,N'-di(p-butyl-oxy-phenyl)-1,4-diaminobenzene)] (PFO-PBAB) are produced by electrospinning under different experimental conditions. In…

Materials Science · Physics 2013-09-04 Vito Fasano , Alessandro Polini , Giovanni Morello , Maria Moffa , Andrea Camposeo , Dario Pisignano

The use of UV light sources is highly relevant in many fields of science, being directly related to all those detection and diagnosis procedures which are based on fluorescence spectroscopy. Depending on the specific application, UV…

Materials Science · Physics 2015-11-17 Giovanni Morello , Rita Manco , Maria Moffa , Luana Persano , Andrea Camposeo , Dario Pisignano

Due to its ultrahigh electron transmissivity in a wide electron energy range, molecular impermeability, high electrical conductivity and excellent mechanical stiffness the suspended graphene membranes appear to be a nearly ideal window…

Materials Science · Physics 2015-06-11 Joshua D. Stoll , Andrei Kolmakov

Graphene flakes were produced by nanosecond plasma discharge at atmospheric pressure between an electrode and the surface of distilled water, in which were placed graphite flakes. The discharge ionizes the gas and forms free radicals on the…

While halogenation of graphene presents a fascinating avenue to the construction of a chemically and physically diverse class of systems, their application in photovoltaics has been hindered by often prohibitively large optical gaps. Herein…

Materials Science · Physics 2016-09-15 Lukas Eugen Marsoner Steinkasserer , Alessandra Zarantonello , Beate Paulus

Optical properties and morphology of laser generated Aluminum and Copper phthalocyanine nanoparticles (nAlPc and nCuPc) in water are experimentally studied. Near infrared laser source of nanosecond pulse duration was used for fragmentation…

General Physics · Physics 2019-04-12 I. I. Rakov , S. M. Pridvorova , G. A. Shafeev

Solar cells have generated a lot of interest as a potential source of clean renewable energy for the future. However a big bottleneck in wide scale deployment of these energy sources remain the low efficiency of these conversion devices.…

Materials Science · Physics 2015-05-19 Vidur Parkash , Anand K. Kulkarni

Hy brid composites obtained upon blending conjugated polymers and colloidal inorganic semiconductor nanocrystals are regarded as attractive photo-active materials for optoelectronic applications. Here we demonstrate that tailoring…

The photovoltaic properties of carbon nanotube/Si heterojunction solar cells were investigated using network films of high quality single-walled carbon nanotubes (SWNTs) grown by atmospheric-pressure floating-catalyst chemical vapor…

Intense efforts have been made in recent years to realize nonlinear optical interactions at the single-photon level. Much of this work has focused on achieving strong third-order nonlinearities, such as by using single atoms or other…

Mesoscale and Nanoscale Physics · Physics 2015-08-25 Marco T. Manzoni , Iván Silveiro , F. Javier García de Abajo , Darrick E. Chang

The thermal performance of high heat flux components in a fusion reactor could be enhanced significantly by the use of nanofluid coolants, suspensions of a liquid with low concentrations of solid nanoparticles. However, before they are…

Instrumentation and Detectors · Physics 2013-11-21 T R Barrett , S Robinson , K Flinders , A Sergis , Y Hardalupas

Our group has recently developed a finite element model of a nanoparticle-mediated optical breakdown phenomena. Previously, this model was used to analyze the role of the nanoparticle morphology and the wavelength dependence of a…

Computational Physics · Physics 2017-05-12 Yevgeniy R. Davletshin , J. Carl Kumaradas

Graphite nanofibers (GNFs) have been demonstrated to be a promising material for hydrogen storage and heat management in electronic devices. Here, by means of first-principles and transport simulations, we show that GNFs can also be an…

Mesoscale and Nanoscale Physics · Physics 2017-09-15 Van-Truong Tran , Jérôme Saint-Martin , Philippe Dollfus , Sebastian Volz

The unique and remarkable properties of graphene can be exploited as the basis to a wide range of applications. However, in spite of years of investigations there are some important graphene properties that are not still fully understood,…

Mesoscale and Nanoscale Physics · Physics 2016-02-08 Ygor M. Jaques , Gustavo Brunetto , Douglas S. Galvao

Carbon nanostructures, such as nanotubes and graphene nanoribbons, exhibit unique electronic and optical properties that make them very promising candidates for terahertz components. However, carbon nanotube and nanoribbon monolithic…

Mesoscale and Nanoscale Physics · Physics 2026-05-26 Vasil A. Saroka , Olivia Pulci , Marco D'Alessandro

Semi-permeable membranes are important elements in water purification and energy generation applications, for which the atomic thickness and strength of graphene can enhance efficiency and permeation rate while maintaining good selectivity.…

Mesoscale and Nanoscale Physics · Physics 2020-09-09 Robin J. Dolleman , Allard J. Katan , Herre S. J. van der Zant , Peter G. Steeneken

The effect of chemical doping of graphene films on the photovoltaic properties of the graphene/silicon Schottky junction solar cells was investigated. Thionyl chloride modification greatly enhanced the conductivity of graphene film,…

Materials Science · Physics 2011-01-04 Xinming Li , Hongwei Zhu , Kunlin Wang , Jinquan Wei , Guifeng Fan , Xiao Li , Dehai Wu

Experimental investigation of hydrodynamics in electron fluids is a highly topical research area that emerged during the last few years. A recent measurement of the optical conductivity in graphene [P. Gallagher et.al, Science 364, 158…

Mesoscale and Nanoscale Physics · Physics 2019-10-02 B. N. Narozhny

Solar photothermal conversion is one of the most straightforward methods to utilize solar energy. In this manuscript, a novel double-layer structure constructed of graphene enhanced thermoplastic polyurethanes (G-TPU) and neat thermoplastic…

Materials Science · Physics 2024-10-10 Zihao Kang , Min Xi , Nian Li , Shudong Zhang , Zhenyang Wang

Graphene stands as a promising material with vast potential across energy storage, electronics, etc. Here, we present a novel mechanical approach utilizing ultrasonic high-energy intercalation exfoliation to extract monolayer graphene from…

Materials Science · Physics 2025-01-15 Kaitong Sun , Si Wu , Junchao Xia , Yinghao Zhu , Guanping Xu , Hai-Feng Li