Now showing items 31-40 of 350
Strong nonradiative energy transfer from the nanopillars of quantum wells to quantum dots: Efficient excitonic color conversion for light emitting diodes
(Optical Society of America, 2012)
Efficient nonradiative energy transfer is observed from nanopillars of InGaN/GaN quantum wells to colloidal CdSe/ZnS quantum dots up to 83% efficiency. Nanostructured architecture is shown to promote excitonic color ...
Three-dimensional nanoplasmonic surfaces with strong out-of-plane electric field enhancement
Conventional 2D plasmonic structures, with surface coverage ~50%, provide field enhancement in the plane. The proposed 3D nanoplasmonic surfaces, with unity coverage, achieve 7.2-fold stronger out-of-plane enhancement ...
Nonradiative energy transfer in assembly of nanostructures
(Springer Verlag, 2017)
This chapter is reprinted (adapted) with permission from Ref. . Copyright 2014 American Chemical Society. Here, we present the theoretical framework of generalized Förster-type nonradiative energy transfer (FRET) between ...
Room-temperature, high-efficiency conversion of mott-wannier excitons to frenkel excitons in hybrid semiconductor quantum dot/polymer composites
Efficient conversion from Mott-Wannier to Frenkel excitons at room temperature is observed in hybrid inorganic/organic composites of CdSe/ZnS core/shell heteronanocrystals in MDMO-PPV homopolymers at a rate of 0.2628 ns-1 ...
Observation of anisotropic emission from semiconductor quantum dots in nanocomposites of metal nanoparticles
[No abstract available]
Photonic devices and systems embedded with nanocyrstals
We review our research work on the development of photonic devices and systems embedded with nanocyrstals for new functionality within EU Phoremost Network of Excellence on nanophotonics. Here we report on CdSe/ZnS ...
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 ...
Quantum efficiency enhancement optimization in colloidal semiconductor quantum dot solids using nonradiative energy transfer
(Optical Society of America, 2010)
We investigate quantum efficiency (QE) enhancement via recycling of trapped excitons in energy-gradient of quantum dot solids using nonradiative energy transfer. The maximum QE increase of 17% is achieved when the ...
Inverted type-I CdS/CdSe core/crown colloidal quantum ring
Summary form only given. Inverted Type-I quantum rings (QRs) are a recently developed class of nanostructure in which a lower bandgap material is laterally grown as a crown of same thickness around a higher bandgap ...