Magnetic circular dichroism study of CdSe quantum dots

1998 ◽  
Vol 108 (10) ◽  
pp. 4242-4247 ◽  
Author(s):  
M. Kuno ◽  
M. Nirmal ◽  
M. G. Bawendi ◽  
Alexander Efros ◽  
Mervine Rosen
Keyword(s):  
Quantum Dots ◽  
Circular Dichroism ◽  
Magnetic Circular Dichroism ◽  
Cdse Quantum Dots ◽  
Circular Dichroïsm

scholarly journals Ligand Induced Circular Dichroism and Circularly Polarized Luminescence in CdSe Quantum Dots

ACS Nano ◽  
2013 ◽  
Vol 7 (12) ◽  
pp. 11094-11102 ◽  
Author(s):  
Urice Tohgha ◽  
Kirandeep K. Deol ◽  
Ashlin G. Porter ◽  
Samuel G. Bartko ◽  
Jung Kyu Choi ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Circular Dichroism ◽  
Cdse Quantum Dots ◽  
Induced Circular Dichroism ◽  
Circularly Polarized ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence ◽  
Circular Dichroïsm

scholarly journals Investigation of AgInS2/ZnS Quantum Dots by Magnetic Circular Dichroism Spectroscopy

Materials ◽  
2019 ◽  
Vol 12 (21) ◽  
pp. 3616 ◽  
Author(s):  
Yulia Gromova ◽  
Anastasiia Sokolova ◽  
Danil Kurshanov ◽  
Ivan Korsakov ◽  
Victoria Osipova ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Circular Dichroism ◽  
Energy Level ◽  
Absorption Spectra ◽  
Magnetic Circular Dichroism ◽  
Second Derivative ◽  
Spectra Analysis ◽  
Electron Transitions ◽  
Metal Dichalcogenides ◽  
Circular Dichroïsm

Over recent years, quantum dots (QDs) based on ternary metal dichalcogenides have attracted a lot of attention due to their unique properties and a range of potential applications. Here, we review the latest studies on the optical properties of AgInS2/ZnS QDs with emphasis on their theoretical modeling, and present our investigations of electronic transitions invisible in unstructured absorption spectra of AgInS2/ZnS QDs. The analysis of the absorption, photoluminescence excitation (PLE), and magnetic circular dichroism (MCD) spectra of hydrophobic and hydrophilic AgInS2/ZnS QDs of different sizes enables us to determine positions of electron transitions in these QDs. We demonstrate that the use of the second derivative of PLE spectra provides more unequivocal data on the position of the energy transitions compared with the second derivative of absorption spectra. Analysis of the MCD spectra reveals that the magnetic field induces energy level mixing in AgInS2/ZnS QDs in contrast to the traditional Cd-based QDs, where MCD is associated only with removing degeneracy of the excited energy level.

scholarly journals Об интерпретации спектров фотохимически индуцированного кругового дихроизма полупроводниковых нанокристаллов

2020 ◽  
Vol 128 (6) ◽  
pp. 722
Author(s):  
Ф.М. Сафин ◽  
В.Г. Маслов
Keyword(s):  
Quantum Dots ◽  
Circular Dichroism ◽  
Magnetic Circular Dichroism ◽  
Semiconductor Nanocrystals ◽  
Circular Dichroïsm

An approach to the analysis and interpretation of the spectra of photoinduced circular dichroism (PICD) of semiconductor nanocrystals, in particular quantum dots, based on their comparison with the spectra of magnetic circular dichroism (MCD), is proposed. It was shown that the MCD and PICD spectra have similar features. The values of parameters similar to the known parameters A and B of the MCD spectra characterizing the splitting and mixing of states were determined from the PICD spectra.

scholarly journals Soft x-ray absorption spectroscopy and magnetic circular dichroism as operando probes of complex oxide electrolyte gate transistors

2020 ◽  
Vol 116 (20) ◽  
pp. 201905
Author(s):  
Biqiong Yu ◽  
Guichuan Yu ◽  
Jeff Walter ◽  
Vipul Chaturvedi ◽  
Joseph Gotchnik ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Absorption Spectroscopy ◽  
Magnetic Circular Dichroism ◽  
Complex Oxide ◽  
X Ray ◽  
X Ray Absorption ◽  
Circular Dichroïsm ◽  
Oxide Electrolyte

scholarly journals Natural and magnetic circular dichroism spectra of nucleosides: effect of the dynamics and environment

RSC Advances ◽  
2021 ◽  
Vol 11 (14) ◽  
pp. 8411-8419
Author(s):  
Jakub Kaminský ◽  
Valery Andrushchenko ◽  
Petr Bouř
Keyword(s):  
Molecular Dynamics ◽  
Circular Dichroism ◽  
Nucleic Acids ◽  
Electronic Absorption ◽  
Magnetic Circular Dichroism ◽  
Circular Dichroism Spectra ◽  
Circular Dichroïsm ◽  
Magnetic Circular Dichroism Spectra

Electronic absorption, natural and magnetic circular dichroism spectra of several nucleosides are simulated to understand their dependence on molecular dynamics and environment, their sensitivity to nucleoside pairing and stacking in nucleic acids.

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