Temperature-dependent measurement of Auger recombination in In0.40Ga0.60N/GaN red-emitting (λ = 630 nm) quantum dots

2014 ◽  
Vol 104 (8) ◽  
pp. 081121 ◽  
Author(s):  
Thomas Frost ◽  
Animesh Banerjee ◽  
Shafat Jahangir ◽  
Pallab Bhattacharya
Keyword(s):  
Quantum Dots ◽  
Auger Recombination ◽  
Temperature Dependent ◽  
Dependent Measurement

scholarly journals Temperature-dependent measurement of Auger recombination in self-organized In0.4Ga0.6As/GaAs quantum dots

2001 ◽  
Vol 79 (6) ◽  
pp. 722-724 ◽  
Author(s):  
S. Ghosh ◽  
P. Bhattacharya ◽  
E. Stoner ◽  
J. Singh ◽  
H. Jiang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Auger Recombination ◽  
Temperature Dependent ◽  
Self Organized ◽  
Dependent Measurement

Temperature-Dependent Permeability of the Ligand Shell of PbS Quantum Dots Probed by Electron Transfer to Benzoquinone

2015 ◽  
Vol 6 (14) ◽  
pp. 2841-2846 ◽  
Author(s):  
Kenneth O. Aruda ◽  
Miriam Bohlmann Kunz ◽  
Mario Tagliazucchi ◽  
Emily A. Weiss
Keyword(s):  
Quantum Dots ◽  
Electron Transfer ◽  
Temperature Dependent ◽  
Ligand Shell ◽  
Pbs Quantum Dots

Temperature-Dependent Photoluminescence Spectra of PbSe Quantum Dots for Temperature Markers

2012 ◽  
Vol 482-484 ◽  
pp. 2547-2550
Author(s):  
Peng Fei Gu ◽  
Ya Nan Wang ◽  
Jia Jia Cao ◽  
Yu Yan ◽  
Tie Qiang Zhang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Temperature Sensitivity ◽  
Peak Position ◽  
Strong Temperature Dependence ◽  
Photoluminescence Spectra ◽  
Temperature Dependent ◽  
Temperature Variations ◽  
Temperature Changes ◽  
Optical Readout ◽  
Temperature Dependent Photoluminescence

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.

Temperature-dependent recombination dynamics and electroluminescence characteristics of colloidal CdSe/ZnS core/shell quantum dots

2021 ◽  
Vol 119 (7) ◽  
pp. 073303
Author(s):  
Jialin Wu ◽  
Lixiang Chen ◽  
Yongshuang Zhao ◽  
Zuhong Xiong ◽  
Wenyu Ji ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Core Shell ◽  
Temperature Dependent ◽  
Recombination Dynamics

Однофотонное излучение одиночной квантовой точки CdTeSe/ZnS в ближнем инфракрасном диапазоне при комнатной температуре

2021 ◽  
Vol 47 (21) ◽  
pp. 3
Author(s):  
Siyue Jin ◽  
Xingsheng Xu
Keyword(s):  
Quantum Dots ◽  
Room Temperature ◽  
Auger Recombination ◽  
Single Photon ◽  
Irradiation Time ◽  
Colloidal Quantum Dots ◽  
Single Quantum ◽  
Illumination Time ◽  
Single Quantum Dots ◽  
Single Quantum Dot

In this study, the photostability of a CdTeSe/ZnS colloidal single photon emitter with a wavelength of 800nm at room temperature was investigated. The second-order correlation function was much smaller than 0.1, which proved that the CdTeSe/ZnS single quantum dot at 800nm is a highly pure single-photon emitter. The effects of the irradiation time on the optical properties from single quantum dots were analyzed. As the illumination time increased, the emission of biexciton and multiexciton in the colloidal quantum dots increased, and the occurrence of Auger recombination increased.

scholarly journals Engineering Auger recombination in colloidal quantum dots via dielectric screening

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Xiaoqi Hou ◽  
Jun Kang ◽  
Haiyan Qin ◽  
Xuewen Chen ◽  
Junliang Ma ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Auger Recombination ◽  
Colloidal Quantum Dots ◽  
Dielectric Screening

OPTICAL PROPERTIES OF CdTe AND CdS QUANTUM DOTS IN GLASS

1992 ◽  
Vol 01 (01) ◽  
pp. 25-50 ◽  
Author(s):  
V. ESCH ◽  
K. KANG ◽  
B. FLUEGEL ◽  
Y.Z. HU ◽  
G. KHITROVA ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Optical Nonlinearities ◽  
Cds Quantum Dots ◽  
Temperature Dependent ◽  
Linear Absorption ◽  
Crystallite Sizes ◽  
Band Mixing ◽  
Quantum Confined ◽  
Coulomb Effects

We summarize the linear and nonlinear optical properties of a variety of CdTe and CdS quantum dots in glass. The measured linear absorption of the CdTe sample is compared with calculations involving valence-band mixing due to the quantum confinement. The temperature dependence of the lowest quantum-confined transition and its linewidth for samples with various crystallite sizes are measured and compared with a simple model. It is found that the shift of the energetically lowest quantum-confined transition as a function of temperature is the same as the temperature-dependent band-gap reduction in bulk materials. Excitation of the sample with pulses ranging from femtoseconds to microseconds allows distinguishing between various mechanisms responsible for the observed optical nonlinearities. At very early times, phase-space filling and Coulomb interaction between the excited charged carriers are responsible for the absorption changes. At later times, Coulomb effects due to “trapped” carriers remain and last for nanoseconds or microseconds.

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