Receiving and Researching Electrical and Physical Properties of Amorphous Superlattices with Quantum Dots Based on SIXC1-X : H / NC-SI : H

2006 ◽  
Author(s):  
D.V. Nefedov ◽  
R.K. Yafarov
Keyword(s):  
Quantum Dots ◽  
Physical Properties

Quantum Dots Based Material for Drug Delivery Applications

2021 ◽  
pp. 191-215
Keyword(s):  
Drug Delivery ◽  
Quantum Dots ◽  
Particle Size ◽  
Physical Properties ◽  
Semiconductor Nanoparticles ◽  
Cellular Imaging ◽  
Biological Applications ◽  
Distinct Class ◽  
Imaging Probes ◽  
Biomedical Field

Quantum dots (QDs) have shown promising potential to many biomedical and biological applications, mainly in drug delivery or activation and cellular imaging. These semiconductor nanoparticles, QDs, whose particle size is in the range of 2-10 nanometer with unique photo-chemical and -physical properties that are not possessed by any other isolated molecules, have become one of the distinct class of imaging probes and worldwide platforms for manufacturing of multifunctional nanodevices. In this chapter, properties, applications of QDs, and importance in the biomedical field especially in drug delivery is presented.

scholarly journals Enhancing the Seebeck effect in Ge/Si through the combination of interfacial design features

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Andriy Nadtochiy ◽  
Vasyl Kuryliuk ◽  
Viktor Strelchuk ◽  
Oleg Korotchenkov ◽  
Pei-Wen Li ◽  
...  
Keyword(s):  
Thin Film ◽  
Quantum Dots ◽  
Integrated Circuits ◽  
Seebeck Coefficient ◽  
Physical Properties ◽  
Thermal Management ◽  
Phonon Scattering ◽  
Atomic Layer ◽  
Epitaxial Films ◽  
Seebeck Effect

Abstract Due to their inherent physical properties, thin-film Si/SiGe heterostructures have specific thermal management applications in advanced integrated circuits and this in turn is essential not only to prevent a high local temperature and overheat inside the circuit, but also generate electricity through the Seebeck effect. Here, we were able to enhance the Seebeck effect in the germanium composite quantum dots (CQDs) embedded in silicon by increasing the number of thin silicon layers inside the dot (multi-fold CQD material). The Seebeck effect in the CQD structures and multi-layer boron atomic layer-doped SiGe epitaxial films was studied experimentally at temperatures in the range from 50 to 300 K and detailed calculations for the Seebeck coefficient employing different scattering mechanisms were made. Our results show that the Seebeck coefficient is enhanced up to ≈40% in a 3-fold CQD material with respect to 2-fold Ge/Si CQDs. This enhancement was precisely modeled by taking into account the scattering of phonons by inner boundaries and the carrier filtering by the CQD inclusions. Our model is also able to reproduce the observed temperature dependence of the Seebeck coefficient in the B atomic layer-doped SiGe fairly well. We expect that the phonon scattering techniques developed here could significantly improve the thermoelectric performance of Ge/Si materials through further optimization of the layer stacks inside the quantum dot and of the dopant concentrations.

Comparative Analysis of the Optical and Physical Properties of InAs and In0.8Ga0.2As Quantum Dots and Solar Cells Based on them

2020 ◽  
Vol 54 (10) ◽  
pp. 1267-1275
Author(s):  
R. A. Salii ◽  
S. A. Mintairov ◽  
A. M. Nadtochiy ◽  
V. N. Nevedomskii ◽  
M. Z. Shvarts ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Comparative Analysis ◽  
Physical Properties

NEUROSURGERY AND QUANTUM DOTS

Neurosurgery ◽  
2009 ◽  
Vol 64 (6) ◽  
pp. 1015-1028 ◽  
Author(s):  
Alexander A. Khalessi ◽  
Charles Y. Liu ◽  
Michael L.J. Apuzzo
Keyword(s):  
Magnetic Resonance Imaging ◽  
Quantum Dots ◽  
Magnetic Resonance ◽  
Physical Properties ◽  
Materials Science ◽  
Resonance Imaging ◽  
Comprehensive Review ◽  
Diagnosis And Therapy ◽  
Neurological Surgery

Abstract THIS ARTICLE REPRESENTS the first of a 2-part exploration of quantum dots (Qdots) and their application to neurological surgery. Spanning from materials science to immunology, this initial review traces the marriage of imaging physics to biochemical specificity. Qdot science now stands poised to dramatically advance the diagnosis and therapy of neurosurgical conditions. Qdot research efforts currently involve several disciplines; this comprehensive review therefore considers multiple fields of inquiry. This first installment discusses 1) Qdot physical properties, 2) established biological and in vivo properties, 3) magnetic resonance imaging applications, and (4) existing cardiovascular and oncologic research. Finally, this review establishes the existing bounds of Qdot possibilities. The second concept article details future endovascular diagnostic and therapeutic methods derived from these seminal advances.

scholarly journals The Physical Properties and Applications of Gold Nanoparticles (Au NPs): Review

2021 ◽  
Vol 3 (1) ◽  
pp. 74-86
Author(s):  
Rusul Adnan Al-wardy . ◽  
Saad Khalid Rahi .
Keyword(s):  
Drug Delivery ◽  
Quantum Dots ◽  
Gold Nanoparticles ◽  
Physical Properties ◽  
Current Work ◽  
Spherical Nanoparticles ◽  
Au Nps ◽  
3 Dimensional ◽  
Nano Rods ◽  
Catalytic Applications

Nanoparticles of gold that for years have been recognized are the concept of an increasingly rising reports number and of promising for electronic, optical, magnetic, biomedical and catalytic applications in century of 21st. Because of Nanoparticles of gold stability, an interest in such research is a reason for performing the current work. There are various types of AuNPs: Zero-dimensional AuNps: quantum dots, spherical nanoparticles. AuNPs as 1-dimensional: nanowires, nano-rods, nano-belts, nanotubes. AuNPs as 2-dimensional: nano-plates of gold, nano-shell and, AuNPs as 3 dimensional: nano tadpoles of gold, nano- dumbbells of gold (AuNDs), AuNPs being spread, for example, nano-dendrites of gold, nano-pods, and nano-stars. Au NPs, in the field of medicine are investigated for several applications include vectors of drug delivery, agents of contrast, and therapy of localized heat, biomarkers of ultra-sensitive and more. AuNPs are very attractive material for biosensor, chemosensory, genosensor and immunosensor production

Near-Infrared Ag2S quantum dots loaded in phospholipid nanostructures: Physical properties, stability and cytotoxicity

2019 ◽  
Vol 579 ◽  
pp. 123631
Author(s):  
Katarzyna Wiercigroch-Walkosz ◽  
Jakub Cichos ◽  
Edyta Wysokińska ◽  
Grzegorz Rotko ◽  
Wojciech Kałas ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Physical Properties ◽  
Near Infrared ◽  
Ag2s Quantum Dots
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