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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Journal ArticleDOI
Photocurrent generation under forward bias with interfacial tunneling of carrier at pentacene/F16CuPc heterojunction photodetector
TL;DR: In this paper, a bilayer organic photodetector (OPD) based on pentacene and copper-hexadecafluoro-phthalocyanine (F16CuPc) has been done employing thermal evaporation method.
Journal ArticleDOI
Numerical analysis of optical properties of oblate semi-spheroid-shaped quantum dots coupled to wetting layer
TL;DR: In this article, optical nonlinearity enhancement in oblate semi-spheroid-shaped quantum dots (QDs) coupled to a wetting layer was reported, and two groups of InAs/GaAs QDs were examined.
Journal ArticleDOI
Cubic-phase zirconia nano-island growth using atomic layer deposition and application in low-power charge-trapping nonvolatile-memory devices
Nazek El-Atab,Turkan Gamze Ulusoy,Amir Ghobadi,Junkyo Suh,Raisul Islam,Ali Kemal Okyay,Krishna C. Saraswat,Ammar Nayfeh +7 more
TL;DR: Growth of zirconia nano-islands using atomic layer deposition on different substrate terminations is demonstrated and a deep quantum well is formed in the Al2O3/ZrO2/Al2 O3 system, which is substantially different to that in the bulk state of zIRconia and is more favorable for memory application.
Journal ArticleDOI
Tunable magnetic coupling and dipole polarization of core-shell Magnéli Ti4O7 ceramic/magnetic metal possessing broadband microwave absorption properties
TL;DR: In this paper, a core-shell magnetic metallic nanoparticles/oxygen deficient Ti4O7 composite was designed and prepared via an electrostatic assembly with in-situ reduction reaction.
Journal ArticleDOI
Understanding the Passivation Mechanisms and Opto-Electronic Spectral Response in Methylammonium Lead Halide Perovskite Single Crystals.
TL;DR: This work provides a facile approach with chemical means to tune the surface properties and eventual spectral selectivity in MSCs that are promising for photon-detection device applications.
References
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Journal ArticleDOI
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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.
Journal ArticleDOI
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.