Preparation of nanosheets embedded ZnSe/Bi2Se3 core/shell quantum dots for the study of optical properties and antibacterial activity

P Priyadarshini, S Das, S Senapati, SK Samal… - Surfaces and …, 2023 - Elsevier
Cation exchange reaction is a well-known ion exchange method that is very much feasible
for easy synthesis procedure and greater tunability in size and shape of nanomaterials …

Nonlinear optical properties of lens-shaped core/shell quantum dots coupled with a wetting layer: effects of transverse electric field, pressure, and temperature

M Choubani, H Maaref, F Saidi - Journal of Physics and Chemistry of …, 2020 - Elsevier
In this study, we numerically determined the intra-band transition lifetime of carriers as well
as, the linear, nonlinear, and total absorption coefficients fro lens-shaped core/shell …

Biexciton, negative and positive trions in strongly oblate ellipsoidal quantum dot

DB Hayrapetyan, YY Bleyan, DA Baghdasaryan… - Physica E: Low …, 2019 - Elsevier
The biexciton, negative and positive trion states in strongly oblate ellipsoidal quantum dot
are investigated in the framework of variational method and Heisenberg's uncertainty …

A Tunneling Dielectric Layer Free Floating Gate Nonvolatile Memory Employing Type‐I Core–Shell Quantum Dots as Discrete Charge‐Trapping/Tunneling Centers

C Yan, J Wen, P Lin, Z Sun - Small, 2019 - Wiley Online Library
A nonvolatile memory with a floating gate structure is fabricated using ZnSe@ ZnS core–
shell quantum dots as discrete charge‐trapping/tunneling centers. Systematical …

Effective mass model supported band gap variation in cobalt-doped ZnO nanoparticles obtained by co-precipitation

KP Misra, S Jain, A Agarwala, N Halder… - Semiconductors, 2020 - Springer
Zn 1–x Co x O (x= 0, 0.01, 0.03, 0.05) nanoparticles were synthesized using co-precipitation
method. Shift in peaks of XRD patterns for 2θ values has been observed. The changes in 2θ …

Synthesis and optical study of green light emitting polymer coated CdSe/ZnSe core/shell nanocrystals

SK Tripathi, M Sharma - Materials Research Bulletin, 2013 - Elsevier
CdSe/ZnSe Core/Shell NCs dispersed in PVA are synthesized by chemical method at room
temperature. This is characterized by transmission electron microscopy (TEM), X-ray …

Strong UV emission in flakes-like ZnS nanoparticles synthesized by cost effective sol-gel method

P Kumari, A Sharma, A Kumawat, S Samanta… - Materials Today …, 2022 - Elsevier
The objective of the study is to synthesize ZnS nanoparticles (NPs) by simple cost-effective
technique and analyze their optoelectronic features. Cubic single phase ZnS NPs were …

Effect of shell thickness on optical properties of ZnSe/ZnS quantum dots under solar and laser excitation

N Liu, L Ding, H Xue, Y Ji, Y Ye - Journal of Nanoparticle Research, 2022 - Springer
Monodispersed and highly luminescent quantum dots (QDs) of ZnSe/ZnS with different shell
thicknesses between 0 and 4 monolayer (ML) were fabricated via an aqueous route. The …

Instabilities in the optical response of a semiconductor quantum dot—Metal nanoparticle heterodimer: Self-oscillations and chaos

BS Nugroho, AA Iskandar, VA Malyshev… - Journal of …, 2016 - iopscience.iop.org
We theoretically investigate the nonlinear optical response of a heterodimer comprising a
semiconductor quantum dot strongly coupled to a metal nanoparticle. The quantum dot is …

Semiconductor core-shell quantum dot: a low temperature nano-sensor material

S Chattopadhyay, P Sen, J Thomas Andrews… - Journal of Applied …, 2012 - pubs.aip.org
This paper presents an analytical study of temperature dependent photoluminescence (PL)
in core-shell quantum dots (CSQDs) made of most frequently used II-VI semiconducting …