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 ◽  
...  
Author(s):  
M.J. Kim ◽  
L.C. Liu ◽  
S.H. Risbud ◽  
R.W. Carpenter

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.


RSC Advances ◽  
2015 ◽  
Vol 5 (49) ◽  
pp. 38810-38817 ◽  
Author(s):  
Yeping Li ◽  
Jingbo Xu ◽  
Yun Xu ◽  
Liying Huang ◽  
Junli Wang ◽  
...  

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


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

2018 ◽  
Vol 86 ◽  
pp. 424-432 ◽  
Author(s):  
S.R. Munishwar ◽  
P.P. Pawar ◽  
S.Y. Janbandhu ◽  
R.S. Gedam

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

2016 ◽  
Vol 30 (1) ◽  
pp. e12410 ◽  
Author(s):  
Paulo Rowilson Cunha ◽  
Nabila Scabine Pessotti ◽  
Camila Bonati Mattos ◽  
Ana Flavia Salai

2009 ◽  
Vol 311 (7) ◽  
pp. 1803-1806 ◽  
Author(s):  
S. Haffouz ◽  
S. Raymond ◽  
Z.G. Lu ◽  
P.J. Barrios ◽  
D. Roy-Guay ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document