Aminophosphine-Derived, High-Quality Red-Emissive InP Quantum Dots by Use of an Unconventional In Halide

2022 ◽  
Author(s):  
Seung-Wan Choi ◽  
Hyun-Min Kim ◽  
Suk-Young Yoon ◽  
Dae-Yeon Jo ◽  
Sun-Kyo Kim ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Indium Phosphide ◽  
Next Generation ◽  
High Quality ◽  
Dominant Position ◽  
Display Devices ◽  
Inp Quantum Dots

Thanks to the synthetic maturity and environmental benignity of indium phosphide (InP) quantum dots (QDs), they have acquired a dominant position as efficient, sustainable visible emitters for next-generation display devices....

Highly luminescent InP-In(Zn)P/ZnSe/ZnS core/shell/shell colloidal quantum dots with tunable emission synthesized based on growth-doping

2021 ◽  
Author(s):  
Cong Shen ◽  
Yan Qing Zhu ◽  
Zixiao Li ◽  
Jingling Li ◽  
Hong Tao ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Near Infrared ◽  
Infrared Region ◽  
Colloidal Quantum Dots ◽  
High Quality ◽  
Promising Alternative ◽  
Lower Toxicity ◽  
Near Infrared Region ◽  
Inp Quantum Dots ◽  
Tunable Emission

InP quantum dots (QDs) are considered as the most promising alternative to Cd-based QDs with the lower toxicity and emission spectrum tunability ranging from visible to near-infrared region. Although high-quality...

6-Mercaptohexanoic acid assisted synthesis of high quality InP quantum dots for optoelectronic applications

2013 ◽  
Vol 56 ◽  
pp. 86-91 ◽  
Author(s):  
Waleed E. Mahmoud ◽  
Y.C. Chang ◽  
A.A. Al-Ghamdi ◽  
F. Al-Marzouki ◽  
Lyudmila M. Bronstein
Keyword(s):  
Quantum Dots ◽  
High Quality ◽  
Optoelectronic Applications ◽  
Inp Quantum Dots

Gallium – a versatile element for tuning the photoluminescence properties of InP quantum dots

2019 ◽  
Vol 55 (11) ◽  
pp. 1663-1666 ◽  
Author(s):  
K. David Wegner ◽  
Stéphanie Pouget ◽  
Wai Li Ling ◽  
Marie Carrière ◽  
Peter Reiss
Keyword(s):  
Quantum Dots ◽  
Indium Phosphide ◽  
Photoluminescence Properties ◽  
Inp Quantum Dots

Depending on the gallium precursor, the photoluminescence of indium phosphide quantum dots is either blue- or red-shifted.

scholarly journals Indium phosphide magic-sized clusters: chemistry and applications

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Yongju Kwon ◽  
Sungjee Kim
Keyword(s):  
Quantum Dots ◽  
Indium Phosphide ◽  
Formation Process ◽  
Luminescent Properties ◽  
Synthesis And Characterization ◽  
Growth Mechanisms ◽  
Strong Binding ◽  
Phosphonate Ligands ◽  
Inp Quantum Dots

AbstractThis paper reviews developments in the synthesis of InP quantum dots (QDs) and research on InP magic-sized clusters (MSCs), which occur as intermediates during the growth of InP QDs. We classify research on InP MSCs into (1) synthesis and characterization and (2) applications. Several InP MSCs have been developed using low reaction temperatures or strong binding ligands. InP MSCs passivated by carboxylate, amine or phosphonate ligands and InP MSCs that incorporate heterogeneous atoms (Cl or Zn) have been synthesized. We also review tools to characterize MSCs and show the intermediate characteristics of InP MSCs. InP MSCs have been used as synthesis precursors for spherical InP QDs and nonspherical InP nanostructures, such as elongated, branched, and hyperbranched/dendrimer-like morphologies. We also present MSC-mediated growth mechanisms involving fragments, monomers or other nanoclusters. Research on the chemistry and applications of InP MSCs has uncovered the formation process of InP nanomaterials. Developments in the luminescent properties of InP MSCs, InP QDs and elongated InP nanostructures would be useful in displays.

Large-scale synthesis of high quality InP quantum dots in a continuous flow-reactor under supercritical conditions

2015 ◽  
Vol 26 (8) ◽  
pp. 085604 ◽  
Author(s):  
Christian Ippen ◽  
Benjamin Schneider ◽  
Christopher Pries ◽  
Stefan Kröpke ◽  
Tonino Greco ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Continuous Flow ◽  
Large Scale ◽  
Flow Reactor ◽  
High Quality ◽  
Supercritical Conditions ◽  
Continuous Flow Reactor ◽  
Large Scale Synthesis ◽  
Inp Quantum Dots

Development of High-Quality Newsprint for Next Generation

2006 ◽  
Vol 60 (1) ◽  
pp. 59-63 ◽  
Author(s):  
Fuminari Nonomura
Keyword(s):  
Next Generation ◽  
High Quality

High-Temperature Synthesis of CdSe-Based Core/Shell, Core/Shell/Shell, and Core/Graded-Shell Nanoplatelets for Stable and Efficient Narrowband Emitters

2019 ◽  
Author(s):  
Aurelio A. Rossinelli ◽  
Henar Rojo ◽  
Aniket S. Mule ◽  
Marianne Aellen ◽  
Ario Cocina ◽  
...  
Keyword(s):  
Quantum Dots ◽  
High Temperature ◽  
Equilibrium Shape ◽  
Size Variation ◽  
Crystal Defects ◽  
Atomic Scale ◽  
Quantum Yields ◽  
Core Shell ◽  
Compositional Gradient ◽  
High Quality

<div>Colloidal semiconductor nanoplatelets exhibit exceptionally narrow photoluminescence spectra. This occurs because samples can be synthesized in which all nanoplatelets share the same atomic-scale thickness. As this dimension sets the emission wavelength, inhomogeneous linewidth broadening due to size variation, which is always present in samples of quasi-spherical nanocrystals (quantum dots), is essentially eliminated. Nanoplatelets thus offer improved, spectrally pure emitters for various applications. Unfortunately, due to their non-equilibrium shape, nanoplatelets also suffer from low photo-, chemical, and thermal stability, which limits their use. Moreover, their poor stability hampers the development of efficient synthesis protocols for adding high-quality protective inorganic shells, which are well known to improve the performance of quantum dots. <br></div><div>Herein, we report a general synthesis approach to highly emissive and stable core/shell nanoplatelets with various shell compositions, including CdSe/ZnS, CdSe/CdS/ZnS, CdSe/Cd<sub>x</sub>Zn<sub>1–x</sub>S, and CdSe/ZnSe. Motivated by previous work on quantum dots, we find that slow, high-temperature growth of shells containing a compositional gradient reduces strain-induced crystal defects and minimizes the emission linewidth while maintaining good surface passivation and nanocrystal uniformity. Indeed, our best core/shell nanoplatelets (CdSe/Cd<sub>x</sub>Zn<sub>1–x</sub>S) show photoluminescence quantum yields of 90% with linewidths as low as 56 meV (19.5 nm at 655 nm). To confirm the high quality of our different core/shell nanoplatelets for a specific application, we demonstrate their use as gain media in low-threshold ring lasers. More generally, the ability of our synthesis protocol to engineer high-quality shells can help further improve nanoplatelets for optoelectronic devices.</div>

A Review on Quantum Dots: Synthesis to In- silico Analysis as Next Generation Antibacterial Agents

2019 ◽  
Vol 20 (3) ◽  
pp. 255-262 ◽  
Author(s):  
Sounik Manna ◽  
Munmun Ghosh ◽  
Ranadhir Chakraborty ◽  
Sudipto Ghosh ◽  
Santi M. Mandal
Keyword(s):  
Quantum Dots ◽  
Pathogenic Bacteria ◽  
Antibacterial Agents ◽  
Antimicrobial Properties ◽  
Binding Potential ◽  
Antibacterial Drug ◽  
Next Generation ◽  
Mechanism Of Reaction ◽  
High Level ◽  
Membrane Components

Succumbing to Multi-Drug Resistant (MDR) bacteria is a great distress to the recent health care system. Out of the several attempts that have been made to kill MDR pathogens, a few gained short-lived success. The failures, of the discovered or innovated antimicrobials, were mostly due to their high level of toxicity to hosts and the phenomenal rate of developing resistance by the pathogens against the new arsenal. Recently, a few quantum dots were tested against the pathogenic bacteria and therefore, justified for potential stockpiling of next-generation antibacterial agents. The key players for antimicrobial properties of quantum dots are considered to be Reactive Oxygen Species (ROS). The mechanism of reaction between bacteria and quantum dots needs to be better understood. They are generally targeted towards the cell wall and membrane components as lipoteichoic acid and phosphatidyl glycerol of bacteria have been documented here. In this paper, we have attempted to simulate ZnS quantum dots and have analysed their mechanism of reaction as well as binding potential to the above bacterial membrane components using CDOCKER. Results have shown a high level of antibacterial activity towards several pathogenic bacteria which specify their potentiality for future generation antibacterial drug development.

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