scholarly journals Size- and temperature-dependence of exciton lifetimes in CdSe quantum dots

2006 ◽  
Vol 74 (8) ◽  
Author(s):  
C. de Mello Donegá ◽  
M. Bode ◽  
A. Meijerink
Keyword(s):  
Quantum Dots ◽  
Temperature Dependence ◽  
Cdse Quantum Dots

Temperature dependence of photoluminescence spectra of self-organized CdSe quantum dots

2000 ◽  
Vol 214-215 ◽  
pp. 770-773 ◽  
Author(s):  
Yasuhiro Murase ◽  
Takeshi Ota ◽  
Nobuhiro Yasui ◽  
Akihiro Shikimi ◽  
Tsuguki Noma ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Temperature Dependence ◽  
Cdse Quantum Dots ◽  
Photoluminescence Spectra ◽  
Self Organized

Temperature dependence of the luminescence spectra of liquid crystal composites with CdSe quantum dots

2014 ◽  
Vol 78 (12) ◽  
pp. 1336-1340 ◽  
Author(s):  
K. A. Magaryan ◽  
M. A. Mikhailov ◽  
K. R. Karimullin ◽  
I. A. Vasilieva ◽  
G. V. Klimusheva
Keyword(s):  
Quantum Dots ◽  
Liquid Crystal ◽  
Temperature Dependence ◽  
Luminescence Spectra ◽  
Cdse Quantum Dots

Temperature dependence of radiative recombination in CdSe quantum dots with enhanced confinement

JETP Letters ◽  
2010 ◽  
Vol 92 (1) ◽  
pp. 57-62
Author(s):  
S. V. Zaitsev ◽  
T. Kümmell ◽  
G. Bacher ◽  
D. Hommel
Keyword(s):  
Quantum Dots ◽  
Temperature Dependence ◽  
Radiative Recombination ◽  
Cdse Quantum Dots

Temperature dependence of optical properties and size tunability CdSe quantum dots via non-TOP synthesis

2009 ◽  
Vol 116 (2-3) ◽  
pp. 388-391 ◽  
Author(s):  
Chun Wang ◽  
Yang Jiang ◽  
Lanlan Chen ◽  
Shanying Li ◽  
Guohua Li ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Temperature Dependence ◽  
Cdse Quantum Dots

Size and Temperature Dependent Phonon Spectra of Spherical CdSe Quantum Dots Prepared via a Refined Phosphonic Acid Assisted Organometallic Route

2011 ◽  
Author(s):  
Liangliang Chen ◽  
Yiwen Chen ◽  
Xiulin Ruan
Keyword(s):  
Quantum Dots ◽  
Temperature Dependence ◽  
Phosphonic Acid ◽  
Phonon Frequency ◽  
Negative Temperature ◽  
Cdse Quantum Dots ◽  
Narrow Size Distribution ◽  
Temperature Dependent ◽  
Visible Absorption ◽  
Phonon Spectra

Spherical CdSe quantum dots (QDs) with a narrow size distribution were synthesized using a refined phosphonic-acid-assisted organometallic route. Visible absorption spectra show that as reaction time increases the absorption peak will shift to longer wavelength. HRTEM image confirmed the high-crystallinity of the as-prepared QDs. Raman spectroscopy was used to investigate the size and temperature dependence of the phonon spectra. As temperature increases, the LO-phonon frequency will decrease and the bandwidth will increase. As size increases, the LO-phonon frequency will increase and the bandwidth will decrease. However, when the temperature is above 400 K, the LO-phonon frequency in the smaller dots is higher than that in the larger dots due to the weaker negative temperature dependence of the LO-phonon frequency in the smaller dots.

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