Luminescence Properties of ZnS:Mn Quantum Dots

2007 ◽  
Vol 31 ◽  
pp. 167-169 ◽  
Author(s):  
Xiao Song Zhang ◽  
Lan Li ◽  
Dong Qing Dong ◽  
Zhi Wang ◽  
Xiao Yi Dong

ZnS:Mn quantum dots were prepared in the aqueous medium from readily available precursors. The construction, morphology and luminescence properties of the ZnS:Mn quantum dots were evaluated by XRD,TEM and photoluminescence spectra. The blue and orange emission of the ZnS:Mn quantum dots excited by a 532nm picosecond laser were discussed.

2007 ◽  
Vol 31 ◽  
pp. 138-140
Author(s):  
Xiao Song Zhang ◽  
Xiao Yi Dong ◽  
Gui Yun Kai ◽  
Dong Qing Dong ◽  
Yan Fang Zhang ◽  
...  

ZnS:Er quantum dots were prepared in the aqueous medium from readily available precursors. The construction, morphology and luminescence properties of the ZnS:Er quantum dots were evaluated by XRD,TEM and photoluminescence spectra. Furthermore, the 1590 nm emission of the ZnS:Er quantum dots excited by a 785.0 nm NIR laser were discussed.


Nanoscale ◽  
2020 ◽  
Vol 12 (24) ◽  
pp. 13113-13118 ◽  
Author(s):  
Oscar Hsu-Cheng Cheng ◽  
Tian Qiao ◽  
Matthew Sheldon ◽  
Dong Hee Son

Lead-halide perovskite nanocrystals (NCs) are receiving much attention as a potential high-quality source of photons due to their superior luminescence properties in comparison to other semiconductor NCs.


Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1274
Author(s):  
Grigor A. Mantashian ◽  
Paytsar A. Mantashyan ◽  
Hayk A. Sarkisyan ◽  
Eduard M. Kazaryan ◽  
Gabriel Bester ◽  
...  

By using the numerical discretization method within the effective-mass approximation, we have theoretically investigated the exciton-related Raman scattering, interband absorption and photoluminescence in colloidal CdSe/CdS core/shell quantum dots ensemble. The interband optical absorption and photoluminescence spectra have been revealed for CdSe/CdS quantum dots, taking into account the size dispersion of the ensemble. Numerical calculation of the differential cross section has been presented for the exciton-related Stokes–Raman scattering in CdSe/CdS quantum dots ensemble with different mean sizes.


2000 ◽  
Vol 214-215 ◽  
pp. 770-773 ◽  
Author(s):  
Yasuhiro Murase ◽  
Takeshi Ota ◽  
Nobuhiro Yasui ◽  
Akihiro Shikimi ◽  
Tsuguki Noma ◽  
...  

2012 ◽  
Vol 482-484 ◽  
pp. 2547-2550
Author(s):  
Peng Fei Gu ◽  
Ya Nan Wang ◽  
Jia Jia Cao ◽  
Yu Yan ◽  
Tie Qiang Zhang ◽  
...  

We here report the temperature effect on photoluminescence(PL) spectra of PbSe quantum dots (QDs), which exhibit a strong temperature dependence on their spectra position and intensity. They potentially act as the temperature marker, sensing temperature variations and reporting temperature changes remotely through optical readout. In addition, the temperature sensitivity characterized by peak position of PbSe QDs was found to be 0.39nm/°C in a range of 10-100 °C.


2002 ◽  
Vol 19 (7) ◽  
pp. 967-969 ◽  
Author(s):  
El-Khair Hatim Mohamed ◽  
Xu Ling ◽  
Chen Kun-Ji ◽  
Ma Yi ◽  
Zhang Yu ◽  
...  

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