Results 41 to 50 of about 60,665 (288)

Digital design and parameters optimization for plasmonic circuits [PDF]

open access: yesEPJ Web of Conferences, 2019
The mathematical models for the CAD-platform of plasmonic circuits design have been developed. This platform provides the efficient framework for computer-aided design of semiconductor quantum dots and full-field electromagnetic simulation of surface ...
Shesterikov Alexander   +2 more
doaj   +1 more source

Bipolar Resistive Switching Behavior of PVP-GQD/HfOx/ITO/Graphene Hybrid Flexible Resistive Random Access Memory

open access: yesMolecules, 2021
We have investigated highly flexible memristive devices using reduced graphene oxide (RGO) nanosheet nanocomposites with an embedded GQD Layer. Resistive switching behavior of poly (4-vinylphenol):graphene quantum dot (PVP:GQD) composite and HfOx hybrid ...
Jin Mo Kim, Sung Won Hwang
doaj   +1 more source

Fabrication of large addition energy quantum dots in graphene

open access: yes, 2009
We present a simple technique to fabricate graphene quantum dots in a cryostat. It relies upon the controlled rupture of a suspended graphene sheet subjected to the application of a large electron current. This results in the in-situ formation of a clean
A. Bachtold, J. Moser, Weis J.
core   +1 more source

Applications of Graphene Quantum Dots in Biomedical Sensors [PDF]

open access: yes, 2020
Due to the proliferative cancer rates, cardiovascular diseases, neurodegenerative disorders, autoimmune diseases and a plethora of infections across the globe, it is essential to introduce strategies that can rapidly and specifically detect the ultralow ...
Altintas, Zeynep, Mansuriya, Bhargav D.
core   +1 more source

Photothermal therapy using graphene quantum dots

open access: yesAPL Bioengineering, 2023
The rapid development of powerful anti-oncology medicines have been possible because of advances in nanomedicine. Photothermal therapy (PTT) is a type of treatment wherein nanomaterials absorb the laser energy and convert it into localized heat, thereby causing apoptosis and tumor eradication. PTT is more precise, less hazardous, and easy-to-control in
Mohammad Suhaan Dar   +4 more
openaire   +3 more sources

Study on the Terahertz Spectroscopy Properties of Graphene Quantum Dots Based on Microfluidic Chip

open access: yesInternational Journal of Optics
Graphene quantum dots are quasi-zero-dimensional nanomaterials with unique physical and chemical properties. This study utilized a terahertz (THz) time-domain spectroscopy system to analyze the absorption characteristics of THz-waves by graphene quantum ...
Zhuang Peng   +7 more
doaj   +1 more source

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

open access: yesAdvanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu   +8 more
wiley   +1 more source

Graphene Quantum Dots with High Yield and High Quality Synthesized from Low Cost Precursor of Aphanitic Graphite

open access: yesNanomaterials, 2020
It is difficult to keep the balance of high quality and high yield for graphene quantum dots (GQDs). Because the quality is uncontrollable during cutting large 2D nanosheets to small 0D nanodots by top-down methods and the yield is low for GQDs with high
Shuling Shen   +5 more
doaj   +1 more source

First-principles study of electronic and optical properties of small edge-functionalized penta-graphene quantum dots

open access: yesAIP Advances, 2022
Tailoring the optoelectronic properties of semiconductor quantum dots is essential for designing functionalized nanoscale devices. In this work, we use first-principles calculations to study the optoelectronic properties of small penta-graphene quantum ...
Minh Triet Dang   +3 more
doaj   +1 more source

First principles study of edge carboxylated graphene quantum dots

open access: yes, 2017
The structure stability and electronic properties of edge carboxylated hexagonal and triangular graphene quantum dots are investigated by using density functional theory.
Abdelsalam, Hazem   +2 more
core   +1 more source

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