Results 1 to 10 of about 190,041 (203)

In-situ transmission electron microscopy investigation on the evolution of Pt nanocrystals in atmosphere [PDF]

open access: yesНанотехнологии в строительстве, 2022
Metal nanocrystals exhibit unique properties due to their high surface-to-volume ratio and have great potential for applications in the fields of electronics, magnetics, optics and catalysis.
Qinglin Liu   +3 more
doaj   +1 more source

Quantum Dot Reflective Semiconductor Optical Amplifiers: Optical Pumping Compared with Electrical Pumping

open access: yesNanomaterials, 2022
A comprehensive study has been conducted on quantum dot reflective semiconductor optical amplifiers (QD-RSOAs) with optical pumps (OPs). Moreover, few studies have been completed on OP-based QD-RSOAs.
Farshad Serat Nahaei   +2 more
doaj   +1 more source

Switchable Ultra-Wideband All-Optical Quantum Dot Reflective Semiconductor Optical Amplifier

open access: yesNanomaterials, 2023
A comprehensive study has been conducted on ultra-broadband optically pumped quantum dot (QD) reflective semiconductor optical amplifiers (QD-RSOAs). Furthermore, little work has been done on broadband QD-RSOAs with an optical pump.
Farshad Serat Nahaei   +4 more
doaj   +1 more source

High-speed and high-precision PbSe/PbI2 solution process mid-infrared camera

open access: yesScientific Reports, 2021
Infrared (IR) cameras based on semiconductors grown by epitaxial methods face two main challenges, which are cost and operating at room temperature. The alternative new technologies which can tackle these two difficulties develop new and facile material ...
Hannaneh Dortaj   +6 more
doaj   +1 more source

Simultaneous control of nanocrystal size and nanocrystal-nanocrystal separation in CdS nanocrystal assembly [PDF]

open access: yesPramana, 2005
We report an easy, one pot synthesis to prepare ordered CdS nanocrystals with varying inter-particle separation and characterize the particle separation using x-ray diffraction at low and wide angles.
Sapra, Sameer, Sarma, DD
openaire   +2 more sources

A novel plasmonic metal–semiconductor–insulator–metal (MSIM) color sensor compatible with CMOS technology

open access: yesScientific Reports, 2023
Color detection is one of the top interests in both biological and industrial applications. Specifically, the Determination of the light wave characteristics is vital in photonic technology. One of the features in the color sense that should be found out
A. Beheshti Asl, H. Ahmadi, A. Rostami
doaj   +1 more source

Ultrafast spectroscopy studies of carrier dynamics in semiconductor nanocrystals

open access: yesiScience, 2022
Summary: Semiconductor nanocrystals have become ubiquitous both in scientific research and in applied technologies related to light. When a nanocrystal absorbs a photon an electron-hole pair is created whose fate dictates whether the nanocrystal will be ...
Joseph D. Keene   +3 more
doaj   +1 more source

Particle Size Effect of Curcumin Nanocrystals on Transdermal and Transfollicular Penetration by Hyaluronic Acid-Dissolving Microneedle Delivery

open access: yesPharmaceuticals, 2022
Microneedles are one promising penetration enhancement vehicle to overcome the stratum corneum skin barrier, which hampers the penetration of drug nanocrystals by transdermal delivery.
Hong Xiang   +4 more
doaj   +1 more source

Derivation of Luminescent Mesoporous Silicon Nanocrystals from Biomass Rice Husks by Facile Magnesiothermic Reduction

open access: yesNanomaterials, 2021
High-quality silicon (Si) nanocrystals that simultaneously had superior mesoporous and luminescent characteristics were derived from sticky, red, and brown rice husks via the facile and cost-effective magnesiothermic reduction method. The Si nanocrystals
Sankar Sekar, Sejoon Lee
doaj   +1 more source

On ultrasmall nanocrystals [PDF]

open access: yesChemical Physics Letters, 2010
Ultrasmall nanocrystals are a growing sub-class of traditional nanocrystals that exhibit new properties at diameters typically below 2 nm. In this review, we define what constitutes an ultrasmall nanoparticle while distinguishing between ultrasmall and magic-size nanoparticles.
James R, McBride   +3 more
openaire   +2 more sources

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