Now showing items 1-10 of 33
Localized plasmon-engineered spontaneous emission of CdSe/ZnS nanocrystals closely-packed in the proximity of Ag nanoislands
As a proof-of-concept demonstration, we show that the localized plasmons of metal nanoisland films provide the ability to modify and control the collective spontaneous emission of nanocrystals in their proximity (including ...
CdSe/ZnS core-shell nanocrystal based scintillators for enhanced detection in UV
In this work, we present a novel scintillator that incorporates CdSe/ZnS core-shell nanocrystals to utilize both their high quantum fluorescence efficiency in the visible and high optical absorption in the UV for the purpose ...
White CdS nanoluminophore based tunable hybrid light emitting diodes
The study aims to fabricate and demonstrate hybrid white light emitting diodes that integrate white emitting CdS nanoluminophores with high light quality. Results show that the white light properties of these hybrid WLED ...
Elements of nanocrystal high-field carrier transport modeling
Embedded semiconductor nanocrystals (NCs) within wide bandgap oxide materials are being considered for light emission and solar cell applications. One of the fundamental issues is the high-field transport in NCs. This ...
Nanocrystal hybridized white light sources integrated on near UV leds
(World Scientific Publishing, 2007)
We report on CdSe/ZnS core-shell nanocrystal (NC) based white light sources integrated on near-UV InGaN/GaN light emitting diodes (LEDs). We present the design, epitaxial growth, fabrication, integration and characterization ...
Synthesis of solid solutions of Cd1-xZnxS nanocrystals in the channels of mesostructured silica films
(Royal Society of Chemistry, 2006)
In this contribution, we introduce the use of metal ion (Cd(ii) and Zn(ii)) modified mesostructured silica as a reaction medium, to produce a solid solution of Cd1-xZnxS nanocrystals as a thin film. With this approach, a ...
Nanocrystal emitters for enhanced photovoltaics in UV
[No abstract available]
Analysis of strain fields in silicon nanocrystals
(American Institute of Physics, 2009)
Strain has a crucial effect on the optical and electronic properties of nanostructures. We calculate the atomistic strain distribution in silicon nanocrystals up to a diameter of 3.2 nm embedded in an amorphous silicon ...
Enhancement of optical switching parameter and third-order optical nonlinearities in embedded Si nanocrystals: A theoretical assessment
Third-order bound-charge electronic nonlinearities of Si nanocrystals (NCs) embedded in a wide band-gap matrix representing silica are theoretically studied using an atomistic pseudopotential approach. Nonlinear refractive ...
Wavelength dependent color conversion of CdSe/ZnS core/shell nanocrystals for white LEDs
Nanocrystals (NCs) provide narrow emission spectrum that can be conveniently tuned using quantum size effect. This ability to adjust and control emission spectrum of NCs makes them strong candidates for use in white color ...