scholarly journals Stark effects on band gap and surface phonons of semiconductor quantum dots in dielectric hosts

1996 ◽  
Author(s):  
R. Mu ◽  
A. Ueda ◽  
Y.S. Tung ◽  
D.O. Henderson ◽  
J.G. Zhu ◽  
...  
1995 ◽  
Vol 52 (8) ◽  
pp. 5913-5922 ◽  
Author(s):  
G. W. Wen ◽  
J. Y. Lin ◽  
H. X. Jiang ◽  
Z. Chen

2007 ◽  
Author(s):  
Yang Wang ◽  
David Negro ◽  
Hery S. Djie ◽  
Boon S. Ooi

2010 ◽  
Vol 09 (04) ◽  
pp. 345-349 ◽  
Author(s):  
SUBINDU KUMAR ◽  
SANJIB KABI

The absorption spectra of semiconductor quantum dots (QDs) are expected to be a series of δ-function-like discrete lines due to the nature of the density of states. In a realistic III–V QD system, the absorption spectra is the superimposition of the contribution from each individual dot and the overall behavior is modeled by considering a Gaussian size distribution. In this paper, we study and present the dependence of the Gaussian nature of the absorption spectra of In X Ga 1-X N/GaN QD systems on the dot size distribution and some fundamental parameters such as bowing effect of the band gap, band offset ratio, and so on. It is observed that the absorption spectra depend strongly on the dot size distribution. The results presented helps to get a better insight of the optical properties of In X Ga 1-X N/GaN QD systems.


2017 ◽  
Vol 1 (15) ◽  
pp. 313-315
Author(s):  
A.I. Shkrebtii ◽  
A.V. Sachenko ◽  
I.O. Sokolovskyi ◽  
V.P. Kostylyov ◽  
M.R. Kulish ◽  
...  

2003 ◽  
Vol 773 ◽  
Author(s):  
Xiaohu Gao ◽  
Shuming Nie ◽  
Wallace H. Coulter

AbstractLuminescent quantum dots (QDs) are emerging as a new class of biological labels with unique properties and applications that are not available from traditional organic dyes and fluorescent proteins. Here we report new developments in using semiconductor quantum dots for quantitative imaging and spectroscopy of single cancer cells. We show that both live and fixed cells can be labeled with multicolor QDs, and that single cells can be analyzed by fluorescence imaging and wavelength-resolved spectroscopy. These results raise new possibilities in cancer imaging, molecular profiling, and disease staging.


2010 ◽  
Vol 37 (1) ◽  
pp. 103-110 ◽  
Author(s):  
Chang-Yan LI ◽  
Qian LI ◽  
Hai-Tao LIU ◽  
Jun ZHANG ◽  
DAMIRIN Aletangaole

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