CO2 laser-induced precipitation of CdSxSe1−x nanoparticles in a borosilicate glass: A new approach for the localized growth of quantum dots

2015 ◽  
Vol 42 ◽  
pp. 331-334 ◽  
Author(s):  
Christophe Kinowski ◽  
Odile Robbe-Cristini ◽  
Rémy Bernard ◽  
Hicham El Hamzaoui ◽  
Luc Boussekey ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Co2 Laser ◽  
Borosilicate Glass ◽  
New Approach

Nanostructure of semiconductor quantum dots in a borosilicate glass matrix by complementary use of HREM and AEM

1990 ◽  
Vol 48 (4) ◽  
pp. 728-729
Author(s):  
M.J. Kim ◽  
L.C. Liu ◽  
S.H. Risbud ◽  
R.W. Carpenter
Keyword(s):  
Quantum Dots ◽  
Borosilicate Glass ◽  
Glass Matrix ◽  
Optical Switching ◽  
Response Times ◽  
Fast Response ◽  
Processing Technique ◽  
Internal Stresses ◽  
Electron Hole ◽  
Spatial Dimensions

When the size of a semiconductor is reduced by an appropriate materials processing technique to a dimension less than about twice the radius of an exciton in the bulk crystal, the band like structure of the semiconductor gives way to discrete molecular orbital electronic states. Clusters of semiconductors in a size regime lower than 2R {where R is the exciton Bohr radius; e.g. 3 nm for CdS and 7.3 nm for CdTe) are called Quantum Dots (QD) because they confine optically excited electron- hole pairs (excitons) in all three spatial dimensions. Structures based on QD are of great interest because of fast response times and non-linearity in optical switching applications.In this paper we report the first HREM analysis of the size and structure of CdTe and CdS QD formed by precipitation from a modified borosilicate glass matrix. The glass melts were quenched by pouring on brass plates, and then annealed to relieve internal stresses. QD precipitate particles were formed during subsequent "striking" heat treatments above the glass crystallization temperature, which was determined by differential thermal analysis.

Synthesis and characterization of fluorescent chitosan–ZnSe/ZnS nanoparticles for potential drug carriers

RSC Advances ◽  
2015 ◽  
Vol 5 (49) ◽  
pp. 38810-38817 ◽  
Author(s):  
Yeping Li ◽  
Jingbo Xu ◽  
Yun Xu ◽  
Liying Huang ◽  
Junli Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Drug Carrier ◽  
Drug Carriers ◽  
Cancer Drug ◽  
Synthesis And Characterization ◽  
Potential Drug ◽  
Zns Nanoparticles ◽  
New Approach ◽  
Anti Cancer

The objective of the study is to describe a new approach of combining quantum dots into chitosan as an anti-cancer drug carrier.

Modulation of the photoluminescence of Si quantum dots by means of CO2 laser pre-annealing

2010 ◽  
Vol 256 (16) ◽  
pp. 5116-5119 ◽  
Author(s):  
Yong-bin Chen ◽  
Yong Ren ◽  
Rong-ling Xiong ◽  
You-yuan Zhao ◽  
Ming Lu
Keyword(s):  
Quantum Dots ◽  
Co2 Laser ◽  
Si Quantum Dots

Growth of CdSSe quantum dots in borosilicate glass by controlled heat treatment for band gap engineering

2018 ◽  
Vol 86 ◽  
pp. 424-432 ◽  
Author(s):  
S.R. Munishwar ◽  
P.P. Pawar ◽  
S.Y. Janbandhu ◽  
R.S. Gedam
Keyword(s):  
Heat Treatment ◽  
Quantum Dots ◽  
Band Gap ◽  
Borosilicate Glass ◽  
Band Gap Engineering

A new approach to ZnCdSe quantum dots

1998 ◽  
Vol 51 (1-3) ◽  
pp. 127-131 ◽  
Author(s):  
B.P Zhang ◽  
T Yasuda ◽  
W.X Wang ◽  
Y Segawa ◽  
K Edamatsu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
New Approach

New approach in the treatment of refractory vitiligo: CO2 laser combined with betamethasone and salicylic acid solution

2016 ◽  
Vol 30 (1) ◽  
pp. e12410 ◽  
Author(s):  
Paulo Rowilson Cunha ◽  
Nabila Scabine Pessotti ◽  
Camila Bonati Mattos ◽  
Ana Flavia Salai
Keyword(s):  
Salicylic Acid ◽  
Acid Solution ◽  
Co2 Laser ◽  
New Approach

Growth and fabrication of quantum dots superluminescent diodes using the indium-flush technique: A new approach in controlling the bandwidth

2009 ◽  
Vol 311 (7) ◽  
pp. 1803-1806 ◽  
Author(s):  
S. Haffouz ◽  
S. Raymond ◽  
Z.G. Lu ◽  
P.J. Barrios ◽  
D. Roy-Guay ◽  
...  
Keyword(s):  
Quantum Dots ◽  
New Approach ◽  
Superluminescent Diodes
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