Results 31 to 40 of about 95,719 (293)

High-efficiency InAs/GaAs quantum dot intermediate band solar cell achieved through current constraint engineering

open access: yesNext Materials, 2023
In this work, a novel device concept for improving the efficiency and field operation of conventional InAs/GaAs quantum dot (QD) based intermediate band solar cell (IBSC) with the feature of current constraint (CC-QD-IBSC) was proposed and evaluated from
Tomah Sogabe   +6 more
doaj   +1 more source

Photoluminescence enhancement by deterministically site-controlled, vertically stacked SiGe quantum dots

open access: yesScientific Reports, 2021
The Si/SiGe heterosystem would be ideally suited for the realization of complementary metal-oxide-semiconductor (CMOS)-compatible integrated light sources, but the indirect band gap, exacerbated by a type-II band offset, makes it challenging to achieve ...
Jeffrey Schuster   +7 more
doaj   +1 more source

Characterization of QD-BBS protein conjugates. [PDF]

open access: yes, 2013
(A) Electrophoretic mobility of QDs and QD-conjugates in 1% agarose gel, in Tris-acetate-EDTA buffer (pH 7.4). QDs run from cathode (–) to anode (+). Lanes: 1 – QD605, 2 – mixture of QD605 and barstar (without EDC), 3 - QD605-Bs conjugate, 4- QD565, 5 ...
Sergey M. Deyev (301805)   +3 more
core   +1 more source

Perovskite quantum dot lasers

open access: yesInfoMat, 2020
Owing to the excellent properties of perovskite quantum dots (QDs), such as an easy synthesis process, high photoluminescence quantum yields, high defect tolerance, and tunable bandgap with different elements, laser actions have been widely conducted ...
Jie Chen   +6 more
doaj   +1 more source

General specification of the HTS, copper, QD surface and QD volume resonators. [PDF]

open access: yes, 2015
General specification of the HTS, copper, QD surface and QD volume resonators.
In-Tsang Lin (312785)   +3 more
core   +1 more source

Gas Sensitivity of In0.3Ga0.7As Surface QDs Coupled to Multilayer Buried QDs [PDF]

open access: yesPhotonic Sensors, 2020
Abstract A detailed analysis of the electrical response of In 0.3 Ga 0.7 As surface quantum dots (SQDs) coupled to 5-layer buried quantum dots (BQDs) is carried out as a function of ethanol and acetone concentration while temperature ...
Liwei Zhang   +7 more
openaire   +3 more sources

Growth and function of equine endothelial colony forming cells labeled with semiconductor quantum dots

open access: yesBMC Veterinary Research, 2018
Background Endothelial progenitor cells (EPCs) contribute to neovascularization and vascular repair in vivo and are attractive for clinical use in ischemic disease.
Randolph L. Winter   +5 more
doaj   +1 more source

Synthesis and applications of metal-organic framework–quantum dot (QD@MOF) composites [PDF]

open access: yes
The combination of the high surface areas, microporosity and tuneable compositions of metal-organic frameworks (MOFs) with the desirable photo-physical behaviour of semiconductor nanoparticles or quantum dots (QDs), allows the preparation of composite ...
Bradshaw, Darren   +1 more
core   +1 more source

Quantum Dot Light Enhancement Substrate for OLED Solid-State Lighting [PDF]

open access: yes, 2011
With DOE Award No. DE-EE00000628, QD Vision developed and demonstrated a cost-competitive solution for increasing the light extraction efficiency of OLEDs with efficient and stable color rendering index (CRI) for solid state lighting (SSL).
null Matthew Stevenson   +9 more
core   +1 more source

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

open access: yesAdvanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen   +3 more
wiley   +1 more source

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