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Integrated chemical and biological sensors give advantages in cost, size and weight reduction and open new prospects for parallel monitoring and analysis. Biosensors based on nanoelectromechanical systems (NEMS) are the most attractive…

Optics · Physics 2019-04-29 Dmitry Yu. Fedyanin , Yury V. Stebunov

Superconducting nanowire single-photon detectors (SNSPDs) were integrated with plasmonic nanostructures to enhance the absorption efficiency of superconducting BSCCO stripes. A numerical investigation of optimized nanocavity array (NCAI)…

Hybrid metallic nanoparticles encapsulated in oxide shells are currently intensely studied for plasmonic applications in sensing, medicine, catalysis, and photovoltaics. Here, we introduce a method for the synthesis of Au@Ag@SiO$_2$ cubes…

The interest in nanowire photodetectors stems from their potential to improve the performance of a variety of devices, including solar cells, cameras, sensors, and communication systems. Implementing devices based on nanowire ensembles…

Materials Science · Physics 2023-07-17 E. Akar , I. Dimkou , A. Ajay , Martien I. den Hertog , E. Monroy

In the realm of plasmonic catalytic systems, much attention has been devoted to the plasmon-derived mechanisms, yet the influence of nanoparticles' crystal facets in this type of processes has been sparsely investigated. In this work, we…

Fast and accurate detection of light in the near-infrared (NIR) spectral range plays a crucial role in modern society, from alleviating speed and capacity bottlenecks in optical communications to enhancing the control and safety of…

Photo-bolometric effect is critically important in optoelectronic structures and devices employing metallic electrodes with nanoscale features due to heating caused by the plasmonic field enhancement. One peculiar case is individual silver…

Mesoscale and Nanoscale Physics · Physics 2022-02-15 Mohammadali Razeghi , Merve Üstünçelik , Farzan Shabani , Hilmi Volkan Demir , T. Serkan Kasırga

Supercapacitors (S-C) are short-term energy storage elements that find many applications, e.g., electronic charging devices and suppressors of power fluctuations in grids that are interfaced with sustainable sources. The capacitance of an…

Chemical Physics · Physics 2022-09-23 H. Grebel , Shupei Yu , Yuanwei Zhang

Here we propose the efficient confinement of ultraviolet (UV) light into the plasmonic-photonic crystal hybrid, which can be practically developed by the self-assembly of dielectric colloidal nanosphere monolayer onto a flat aluminum (Al)…

Optics · Physics 2015-06-22 Seungwoo Lee , Juyoung Kim

In the quest for efficient and cost-effective photovoltaic absorber materials beyond silicon, considerable attention has been directed toward exploring alternatives. One such material, zincblende-derived Cu2ZnSnS4 (CZTS), has shown promise…

Materials Science · Physics 2023-10-18 Seoung-Hun Kang , Myeongjun Kang , Sang Woon Hwang , Sinchul Yeom , Mina Yoon , Jong Mok Ok , Sangmoon Yoon

A nanostructured chalcogenide-metal optical fiber is proposed. This hybrid nanofiber is embedded with a periodic array of triangular-shaped deep-subwavelength metallic nanowires set up in a bowtie configuration. Our simulations show that…

Optics · Physics 2015-05-27 Bora Ung , Maksim Skorobogatiy

Quantum confined Au nanoclusters exhibit molecule-like properties, including atomic precision and discrete energy levels. The electrical conductivity of Au nanocluster films can vary by several orders of magnitude, and is determined by the…

Applied Physics · Physics 2021-01-05 Michael Galchenko , Andrés Black , Leonard Heymann , Christian Klinke

Metallic nanoparticles embedded in dielectrics permit enhanced capture of light at specific wavelengths through excitation of plasmons, i.e. the quanta of coherent and collective oscillations of large concentrations of nearly free…

Materials Science · Physics 2010-01-19 J. Trice , C. Favazza , H. Garcia , R. Sureshkumar , R. Kalyanaraman

Scintillators convert ionizing radiation into visible photons, enabling applications from cosmic ray detection to medical imaging. Two independent strategies for improving scintillator performance via nanoscale patterning have recently been…

Near-perfect absorbers (NPAs) efficiently absorb visible light with a layered nanostructure that is thinner than the diffusion lengths of photogenerated charge carriers. We overcame existing limitations in fabricating their nanoparticulate…

We present a systematic study of core-shell Au/Fe_3O_4 nanoparticles produced by thermal decomposition under mild conditions. The morphology and crystal structure of the nanoparticles revealed the presence of Au core of <d> = (6.9\pm 1.0)…

Atomically-thin two-dimensional (2D) layered transition metal dichalcogenides (TMDs) have been extensively studied in recent years because of their appealing electrical and optical properties. Here, we report on the fabrication of ReS2…

Materials Science · Physics 2019-08-17 Enze Zhang , Yibo Jin , Xiang Yuan , Weiyi Wang , Cheng Zhang , Lei Tang , Shanshan Liu , Peng Zhou , Weida Hu , Faxian Xiu

The hybrid metal-dielectric nanostructures (HMDN) are promising candidates to address the ohmic loss by conventional nanostructures in photovoltaic applications by strong confinement and high scattering directivity. In this study, we…

Optics · Physics 2025-05-16 Soikot Sarkar , Sajid Muhaimin Choudhury

Hybrid heterostructure based phototransistors are attractive owing to their high gain induced by photogating effect. However, the absence of an in-plane built-in electric field in the single channel layer transistor results in a relatively…

Materials Science · Physics 2023-01-10 Shreyasi Das , Arup Ghorai , Sourabh Pal , Somnath Mahato , Soumen Das , Samit K. Ray

Extending plasmonics into the ultraviolet range imposes the use of aluminum to achieve the best optical performance. However, water corrosion is a major limiting issue for UV aluminum plasmonics, as this phenomenon occurs significantly…