Results 11 to 20 of about 81,116 (318)
Optical Tunneling to Improve Light Extraction in Quantum Dot and Perovskite Light-Emitting Diodes
IEEE Photonics Journal, 2020 An effective strategy based on optical tunneling is developed to significantly improve the efficiency of quantum dots light-emitting diodes (QLEDs) and perovskite light-emitting diodes (PeLEDs).
Guanding Mei +5 more
doaj +1 more source
Quantum Dots and Applications [PDF]
Materials, 2020 It is the unique size-dependent band gap of quantum dots (QDs) that makes them so special in various applications. They have attracted great interest, especially in optoelectronic fields such as light emitting diodes and photovoltaic cells, because their photoluminescent characteristics can be significantly improved via optimization of the processes by
Chang-Yeol Han +2 more
openaire +2 more sources
Efficient Quantum Dot−Quantum Dot and Quantum Dot−Dye Energy Transfer in Biotemplated Assemblies [PDF]
ACS Nano, 2011 CdSe semiconductor nanocrystal quantum dots are assembled into nanowire-like arrays employing microtubule fibers as nanoscale molecular "scaffolds." Spectrally and time-resolved energy-transfer analysis is used to assess the assembly of the nanoparticles into the hybrid inorganic biomolecular structure. Specifically, we demonstrate that a comprehensive
Marc, Achermann +4 more
openaire +2 more sources
AIP Advances, 2020 Although structural phase transitions in single-crystal hybrid methyl-ammonium (MA) lead halide perovskites (MAPbX3, X = Cl, Br, I) as a function of temperature are common phenomena, they have never been observed in the corresponding nanocrystals.
Yuri D. Glinka +5 more
doaj +1 more source
Advanced Science, 2022 Organic solar cells (OSCs) based on polymer donor and non‐fullerene acceptor achieve power conversion efficiency (PCE) more than 19% but their poor absorption below 550 nm restricts the harvesting of high‐energy photons.
Xiaoyu Gu +11 more
doaj +1 more source
Highly Polarized Fluorescent Film Based on Aligned Quantum Rods by Contact Ink-Jet Printing Method
IEEE Photonics Journal, 2019 Fluorescent quantum rods (QRs) have received much attention recently because of their properties of polarized light emission with narrow full width at half-maximum.
Ziming Zhou +12 more
doaj +1 more source
Piezomagnetic Quantum Dots [PDF]
Physical Review Letters, 2008 We study the influence of deformations on magnetic ordering in quantum dots doped with magnetic impurities. The reduction of symmetry and the associated deformation from circular to elliptical quantum confinement lead to the formation of piezomagnetic quantum dots.
Abolfath, Ramin M. +2 more
openaire +3 more sources
Numerical simulation and design of semiconductor quantum dot-based lasers and amplifiers [PDF]
, 2013 Numerical simulation and design of semiconductor quantum dot-based lasers and ...
Xu, Tianhong
core +1 more source
High performance top-emitting quantum dot light-emitting diodes with interfacial modification
AIP Advances, 2020 In this paper, we report high performance top-emitting quantum dot light-emitting diodes (TE-QLEDs) with an interfacial modification layer. The specular metal bottom electrode was modified by an interfacial layer to improve the wettability of the aqueous
Shihao Ding +8 more
doaj +1 more source
Analysis of As/GaAs quantum dot solar cells using Suns-Voc measurements [PDF]
, 2014 The performance of InAs/GaAs quantum dot solar cells was investigated up to an optical concentration of 500-suns. A high temperature spacer layer between successive layers of quantum dots was used to reduce the degradation in the open circuit voltage ...
Beattie, N. S. +19 more
core +1 more source