Journal ArticleDOI
Nanostructured materials for photon detection
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TLDR
Progress in light sensing using nanostructured materials is reviewed, focusing on solution-processed materials such as colloidal quantum dots and metal nanoparticles.Abstract:
The detection of photons underpins imaging, spectroscopy, fibre-optic communications and time-gated distance measurements. Nanostructured materials are attractive for detection applications because they can be integrated with conventional silicon electronics and flexible, large-area substrates, and can be processed from the solution phase using established techniques such as spin casting, spray coating and layer-by-layer deposition. In addition, their performance has improved rapidly in recent years. Here we review progress in light sensing using nanostructured materials, focusing on solution-processed materials such as colloidal quantum dots and metal nanoparticles. These devices exhibit phenomena such as absorption of ultraviolet light, plasmonic enhancement of absorption, size-based spectral tuning, multiexciton generation, and charge carrier storage in surface and interface traps.read more
Citations
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Filterless Polarization‐Sensitive 2D Perovskite Narrowband Photodetectors
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High-performance visible light photodetectors based on inorganic CZT and InCZT single crystals
Mohd. Shkir,Mohd Taukeer Khan,I.M. Ashraf,I.M. Ashraf,Abdullah Almohammedi,Ernesto Diéguez,S. AlFaify +6 more
TL;DR: It has been observed that the photocurrent generation mechanism in both photodetector devices is dominantly driven by a photogating effect, and these devices show a very high external quantum efficiency of 200% for CZT and 250% for InCZT.
Journal ArticleDOI
Nonlinear elasticity in nanostructured materials
Luciano Colombo,Stefano Giordano +1 more
TL;DR: In this article, a blended continuum/atomistic theoretical picture of the nonlinear elastic properties of nanostructured materials is presented, and the possible onset of length-scale effects and the limits and merits of continuum versus atomistics are established.
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In situ nanoparticle size measurements of gas-borne silicon nanoparticles by time-resolved laser-induced incandescence
Timothy A. Sipkens,Raphael Mansmann,Kyle J. Daun,Nils Petermann,John T. Titantah,Mikko Karttunen,Mikko Karttunen,Hartmut Wiggers,Thomas Dreier,Christof Schulz +9 more
TL;DR: In this article, the authors describe the application of time-resolved laser-induced incandescence (TiRe-LII), a combustion diagnostic used mainly for measuring soot primary particles, to size silicon nanoparticles formed within a plasma reactor.
References
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Journal ArticleDOI
The Optical Properties of Metal Nanoparticles: The Influence of Size, Shape, and Dielectric Environment
TL;DR: In this paper, the authors describe recent progress in the theory of nanoparticle optical properties, particularly methods for solving Maxwell's equations for light scattering from particles of arbitrary shape in a complex environment.
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Synthesis and characterization of nearly monodisperse CdE (E = sulfur, selenium, tellurium) semiconductor nanocrystallites
TL;DR: In this paper, a simple route to the production of high-quality CdE (E=S, Se, Te) semiconductor nanocrystallites is presented, based on pyrolysis of organometallic reagents by injection into a hot coordinating solvent.
Journal ArticleDOI
Shape-Controlled Synthesis of Gold and Silver Nanoparticles
Yugang Sun,Younan Xia +1 more
TL;DR: Monodisperse samples of silver nanocubes were synthesized in large quantities by reducing silver nitrate with ethylene glycol in the presence of poly(vinyl pyrrolidone) (PVP), characterized by a slightly truncated shape bounded by {100, {110}, and {111} facets.
Journal ArticleDOI
Hybrid Nanorod-Polymer Solar Cells
TL;DR: It is demonstrated that semiconductor nanorods can be used to fabricate readily processed and efficient hybrid solar cells together with polymers and Tuning the band gap by altering the nanorod radius enabled us to optimize the overlap between the absorption spectrum of the cell and the solar emission spectrum.
Journal ArticleDOI
Plasmonics: merging photonics and electronics at nanoscale dimensions.
TL;DR: The current status and future prospects of plAsmonics in various applications including plasmonic chips, light generation, and nanolithography are reviewed.