Role of Solvent–Oxygen Ion Pairs in Photooxidation of CdSe Nanocrystal Quantum Dots

ACS Nano ◽  
2012 ◽  
Vol 6 (3) ◽  
pp. 2371-2377 ◽  
Author(s):  
Virginia W. Manner ◽  
Alexey Y. Koposov ◽  
Paul Szymanski ◽  
Victor I. Klimov ◽  
Milan Sykora
Keyword(s):  
Quantum Dots ◽  
Ion Pairs ◽  
Oxygen Ion ◽  
Nanocrystal Quantum Dots ◽  
Role Of Solvent

scholarly journals On the Formation of Honeycomb Superlattices from PbSe Quantum Dots: The Role of Solvent-Mediated Repulsion and Facet-to-Facet Attraction in NC Self-Assembly and Alignment

2022 ◽  
Author(s):  
Maaike M. van der Sluijs ◽  
Dinja Sanders ◽  
Kevin J. Jansen ◽  
Giuseppe Soligno ◽  
Daniel Vanmaekelbergh ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Self Assembly ◽  
Role Of Solvent

The role of elevated autophagy on the synaptic plasticity impairment caused by CdSe/ZnS quantum dots

Biomaterials ◽  
2013 ◽  
Vol 34 (38) ◽  
pp. 10172-10181 ◽  
Author(s):  
Liang Chen ◽  
Yanyan Miao ◽  
Lin Chen ◽  
Peipei Jin ◽  
Yingying Zha ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Synaptic Plasticity

scholarly journals The Role of Sodium in Stabilizing Tin-Lead (Sn-Pb) Alloyed Perovskite Quantum Dots

2021 ◽  
Author(s):  
Junke Jiang ◽  
Feng Liu ◽  
Qing Shen ◽  
Shuxia Tao
Keyword(s):  
Quantum Dots ◽  
Phase Stability ◽  
Band Gaps ◽  
Great Promise ◽  
Narrow Bandgap ◽  
Perovskite Quantum Dots ◽  
Optoelectronic Applications

Narrow-bandgap CsSnxPb1-xI3 perovskite quantum dots (QDs) show great promise for optoelectronic applications owing to their reduced use of toxic Pb, improved phase stability, and tunable band gaps in the visible...

Highly Fluorescent Nitrogen and Boron Doped Carbon Quantum Dots for Selective and Sensitive Detection of Fe3+

2021 ◽  
Author(s):  
Yunhao Zhang ◽  
Hongxin Qin ◽  
Yuting Huang ◽  
Feng Zhang ◽  
Hairong Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Environmental Protection ◽  
Essential Role ◽  
Disease Diagnosis ◽  
Carbon Quantum Dots ◽  
Sensitive Detection ◽  
Boron Doped

Due to the essential role of Fe3+ in physiological and pathological processes, the detection of Fe3+ has drawn an increasing attention in the field of disease diagnosis and environmental protection....

scholarly journals Influence of TOPO and TOPO-CdSe/ZnS Quantum Dots on Luminescence Photodynamics of InP/InAsP/InPHeterostructure Nanowires

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 640
Author(s):  
Artem I. Khrebtov ◽  
Vladimir V. Danilov ◽  
Anastasia S. Kulagina ◽  
Rodion R. Reznik ◽  
Ivan D. Skurlov ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Excited States ◽  
Molecular Beam ◽  
Surface Passivation ◽  
Low Energy ◽  
Trioctylphosphine Oxide ◽  
Reverse Transfer ◽  
Semiconductor Heterostructure ◽  
Ligand Type

The passivation influence by ligands coverage with trioctylphosphine oxide (TOPO) and TOPO including colloidal CdSe/ZnS quantum dots (QDs) on optical properties of the semiconductor heterostructure, namely an array of InP nanowires (NWs) with InAsP nanoinsertion grown by Au-assisted molecular beam epitaxy on Si (111) substrates, was investigated. A significant dependence of the photoluminescence (PL) dynamics of the InAsP insertions on the ligand type was shown, which was associated with the changes in the excitation translation channels in the heterostructure. This change was caused by a different interaction of the ligand shells with the surface of InP NWs, which led to the formation of different interfacial low-energy states at the NW-ligand boundary, such as surface-localized antibonding orbitals and hybridized states that were energetically close to the radiating state and participate in the transfer of excitation. It was shown that the quenching of excited states associated with the capture of excitation to interfacial low-energy traps was compensated by the increasing role of the “reverse transfer” mechanism. As a result, the effectiveness of TOPO-CdSe/ZnS QDs as a novel surface passivation coating was demonstrated.

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