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In this paper we report photovoltaic devices fabricated from PbS nanocrystals and the conducting polymer poly MEH-PPV. This composite material was produced via a new single-pot synthesis which solves many of the issues associated with…

An efficient source of hydrated electrons generated by visible light has the potential to have a major impact on solar homogeneous catalysis. Diamond has potentially a high capability of emitting hydrated electrons, but only using…

Nanocomposites comprised of insulated magnetic single-domain particles are promising candidates for high-frequency, eddy current free, soft magnetic materials, but tend to suffer from low magnetic susceptibility ($<20$). Particle alignment…

Several fields of applications require a reliable characterization of the photothermal response and heat dissipation of nanoscopic systems, which remains a challenging task both for modeling and experimental measurements. Here, we present a…

Core-shell Au@pNIPAM nanocomposites are assembled through a simple and inexpensive approach where drops of bulk nanoparticle solution are left to dry on ITO surfaces at fixed and finely tuned temperatures. Interparticle distances are…

Soft Condensed Matter · Physics 2012-09-28 J. Clara-Rahola , R. Contreras Caceres , A. Fernandez-Barbero

In the case of polymer medical devices, the surface design plays a crucial role in contact with human tissue. The use of AgNPs as antibacterial agents is well known; however, their anchoring into the polymer surface can still be…

Other Quantitative Biology · Quantitative Biology 2023-12-06 Jana Pryjmakova , Daniel Grossberger , Anna Kutova , Barbora Vokata , Miroslav Slouf , Petr Slepicka , Jakub Siegel

Selective removal of heavy metals from water is a complex topic. We present a theoretical computational approach, supported by experimental evidences, to design a functionalized nanomaterial that is able to selectively capture metallic ions…

Silicon (Si) nanoparticles (NPs) were synthesized by transforming Si wafer surface to ammonium silicon hexafluoride (ASH) or (NH4)2SiF6 under acid vapor treatment. Si-NPs are embedded within the polycrystalline (ASH) layer formed on the Si…

Mesoscale and Nanoscale Physics · Physics 2015-12-29 Seref Kalem , Peter Werner , Vadim Talalaev , Michael Becker , Örjan Arthursson , Nikolai Zakharov

This study presents the results of atomistic structural characterisation of 3.7 nm diameter gold nanoparticles (NP) coated with polymer polyethylene glycol (PEG)-based ligands of different lengths (containing $2-14$ monomers) and solvated…

Atomic and Molecular Clusters · Physics 2023-09-07 Matthew D. Dickers , Alexey V. Verkhovtsev , Nigel J. Mason , Andrey V. Solov'yov

Atomic Force Microscopy (AFM) and Grazing Incidence X-Ray Diffraction (GI-XRD) are used to characterize the nanomorphology of spin-coated low (LMW, Mn = 12 kg/mol, regioregularity RR = 84%) and high (HMW, Mn = 39 kg/mol, RR = 98%) molecular…

Soft Condensed Matter · Physics 2014-11-03 Samuele Lilliu , Mejd Alsari , Marcus S. Dahlem , J. Emyr Macdonald

Graphene on noble-metal nanostructures constitutes an attractive nanocomposite with possible applications in sensors or energy conversion. In this work we study the properties of hybrid graphene/gold nanoparticle structures by Raman…

Mesoscale and Nanoscale Physics · Physics 2018-06-14 András Pálinkás , Péter Kun , Antal A. Koós , Zoltán Osváth

Early results on the plasma deposition of dielectric thin films on acoustic wave (AW) activated substrates revealed a densification pattern arisen from the focusing of plasma ions and their impact on specific areas of the piezoelectric…

We study the surface plasmon (SP) resonance energy of isolated spherical Ag nanoparticles dispersed on a silicon nitride substrate in the diameter range 3.5-26 nm with monochromated electron energy-loss spectroscopy. A significant blueshift…

We develop a high-dimensional neural network potential (NNP) to describe the structural and energetic properties of borophene deposited on silver. This NNP has the accuracy of DFT calculations while achieving computational speedups of…

Materials Science · Physics 2023-12-12 Pierre Mignon , Abdul-Rahman Allouche , Neil Richard Innis , Colin Bousige

We systematically investigated and quantified how gold (Au) metal nanoparticles (NPs) optical spectra change upon introduction into biological tissue phantoms environment, in which the AuNPs can agglomerate. Quantitative knowledge of how…

Applied Physics · Physics 2021-03-17 J. C. R. Araujo , A. F. G. Monte , R. L. Serrano , W. Iwamoto , A. Antunes , O. Brener , M. Foschini

Thin films of azopolymer-nanoparticles hybrid materials were fabricated with poly[1-[4-(3-carboxy-4-hydroxyphenylazo) benzenesulfonamido]-1,2-ethanediyl] (PAZO) and different concentrations of Ag and AgAu nanoparticles (NPs). By…

Monocrystalline silicon solar cells with photo-absorbing morphology can amplify light-trapping properties within the absorber layer and help to fabricate cost-effective solar cells. In this paper, the effect of different parameters namely…

Applied Physics · Physics 2021-07-30 M. K. Basher , R. Mishan , S. Biswas , M. Khalid Hossain , M. A. R. Akand , M. A. Matin

The shape of metal nanoparticles embedded in dielectric matrices influences the optical properties of the composite material. Swift heavy ion irradiation can induce a controllable shape transformation in gold and other metals embedded in…

Materials Science · Physics 2022-04-22 Aleksi A. Leino , Ville E. Jantunen , Flyura Djurabekova

Dynamic Nuclear Polarization (DNP) is a powerful suite of techniques that deliver multifold signal enhancements in NMR and MRI. The generated athermal spin states can also be exploited for quantum sensing and as probes for many-body…

Nanogap thermophotovoltaic (TPV) devices can deliver high power densities even with the medium-temperature heat sources. As such, these devices are very promising for recovering industrial waste heat. So far, the demonstrated nanogap TPVs…

Optics · Physics 2026-05-06 Mehran Habibzadeh , Sheila Edalatpour