Results 11 to 20 of about 15,302 (285)

Development of Quantum Dot (QD) Based Color Converters for Multicolor Display. [PDF]

open access: yesNanomaterials (Basel), 2021
Many displays involve the use of color conversion layers. QDs are attractive candidates as color converters because of their easy processability, tuneable optical properties, high photoluminescence quantum yield, and good stability. Here, we show that emissive QDs with narrow emission range can be made in-situ in a polymer matrix, with properties ...
Sajjad MT   +11 more
europepmc   +7 more sources

Exceeding 30% Efficiency of Red Perovskite Quantum Dot Light-Emitting Diodes via Interparticle Energy Dissipation Suppression [PDF]

open access: yesNano-Micro Letters
Highlights A new quantum dot (QD) films with negligible redshift of photoluminescence spectra after film fabrication from QD solution. An electron barrier around QDs realized by adopting ligands with concentrated electron distribution.
Zhiwei Yao   +7 more
doaj   +2 more sources

Enhancement of Quantum Dot Fluorescence by a Metal Nanoparticle/Porous Silicon Microcavity Hybrid System [PDF]

open access: yesEPJ Web of Conferences, 2023
Enhancement of quantum dot (QD) fluorescence in a hybrid system of a porous silicon microcavity (pSiMC) and silver nanoplatelets (AgNPs) has been estimated using numerical simulation.
Granizo Evelyn   +3 more
doaj   +1 more source

A REVIEW ON QUANTUM DOTS (QDS)

open access: yesJournal of Advanced Scientific Research, 2022
Recently, the drugs in nanometer size range have found to increase the performance of various dosage forms. Quantum dots (QDs) have gained attention and interest of scientists due to their targeting and imaging potential in nano based drug delivery, in pharmaceutical and biomedical (cell biology) applications.
Namrata Ramesh Gadakh   +3 more
openaire   +1 more source

A review on Quantum Dots (QDs) and their biomedical applications

open access: yes4open, 2023
Quantum dots (QDs) are nanoscale semiconductor crystals that possess special characteristics, and they are used in various fields. The crystals are composed of elements that usually lie within the groups II-VI or III–V respectively. The diameter of these crystals is usually smaller than the Bohr excitation radius.
Avirup Panja, Prasun Patra
openaire   +2 more sources

Double quantum dots in atomically-precise graphene nanoribbons

open access: yesMaterials for Quantum Technology, 2023
Bottom-up synthesized graphene nanoribbons (GNRs) are precise quantum materials, offering a high degree of tunability of their physical properties. While field-effect transistors and single quantum dot (QD) devices have been reported, the fabrication of ...
Jian Zhang   +9 more
doaj   +1 more source

Modeling electronic and optical properties of III–V quantum dots—selected recent developments

open access: yesLight: Science & Applications, 2022
Electronic properties of selected quantum dot (QD) systems are surveyed based on the multi-band k·p method, which we benchmark by direct comparison to the empirical tight-binding algorithm, and we also discuss the newly developed “linear combination of ...
Alexander Mittelstädt   +2 more
doaj   +1 more source

Device Modeling of Quantum Dot–Organic Light Emitting Diodes for High Green Color Purity

open access: yesApplied Sciences, 2021
In this study, the optimal structure for obtaining high green color purity was investigated by modeling quantum dot (QD)–organic light-emitting diodes (OLED).
Byoung-Seong Jeong
doaj   +1 more source

Study the energy states and absorption coefficients of quantum dots and quantum anti-dots with hydrogenic impurity under the applied magnetic field [PDF]

open access: yesJournal of Optoelectronical Nanostructures, 2022
In this work, the effect of magnetic field onelectronic spectra and absorption coefficient of 𝐺𝑎𝐴𝑠/𝐺𝑎1−𝑥 𝐴𝑙𝑥𝐴𝑠 spherical quantum dot (QD) and𝐺𝑎1−𝑥 𝐴𝑙𝑥𝐴𝑠/𝐺𝑎𝐴𝑠 spherical quantum anti-dot (QAD)with hydrogenic impurity are reported both theoreticallyand ...
Fatemeh Rahimi   +3 more
doaj   +1 more source

Binding energy in tuned quantum dots under an external magnetic field [PDF]

open access: yesJournal of Optoelectronical Nanostructures, 2022
The binding energy of a tuned quantum dot (QD) under an external magnetic field have been theoretically investigated. For this goal, the Schrödinger equation is analytically solved without and with considering the impurity term and the energy eigenvalues
Mojtaba Servatkhah   +2 more
doaj   +1 more source

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