scholarly journals Temperature-Dependent Optical Properties of Colloidal IV-VI Quantum Dots, Composed of Core/Shell Heterostructures with Alloy Components

10.5772/35048 ◽  
2012 ◽  
Author(s):  
Efrat Lifshitz ◽  
Georgy I. ◽  
Roman Vaxenburg ◽  
Diana Yanover ◽  
Anna Brusilovski ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Core Shell ◽  
Temperature Dependent

scholarly journals Effect of dopant concentration and the role of ZnS shell on optical properties of Sm3+ doped CdS quantum dots

RSC Advances ◽  
2021 ◽  
Vol 11 (14) ◽  
pp. 7961-7971
Author(s):  
N. D. Vinh ◽  
P. M. Tan ◽  
P. V. Do ◽  
S. Bharti ◽  
V. X. Hoa ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Dopant Concentration ◽  
Core Shell ◽  
Cds Quantum Dots ◽  
Cds Qds

The role of samarium (Sm) dopant on the structural, morphological, and optical properties of CdS QDs and CdS/ZnS core/shell QDs was methodically reported.

Effect of ZnS shell on optical properties of CdSe–ZnS core–shell quantum dots

2015 ◽  
Vol 39 ◽  
pp. 46-51 ◽  
Author(s):  
S. Mathew ◽  
Bishwajeet Singh Bhardwaj ◽  
Amit D. Saran ◽  
P. Radhakrishnan ◽  
V.P.N. Nampoori ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Core Shell

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

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.

scholarly journals Ultrafast optical properties of type-II CdZnS/ZnSe core-shell quantum dots

2018 ◽  
Vol 26 (14) ◽  
pp. 18480 ◽  
Author(s):  
Lingling Ran ◽  
Haiyang Li ◽  
Wenzhi Wu ◽  
Yachen Gao ◽  
Zhijun Chai ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Core Shell ◽  
Type Ii ◽  
Ultrafast Optical

Optical properties of core/shell spherical quantum dots

2020 ◽  
Vol 29 (9) ◽  
pp. 097802
Author(s):  
Shuo Li ◽  
Lei Shi ◽  
Zu-Wei Yan
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Core Shell

Optical properties and structure of Ag-doped InP quantum dots prepared by a phosphine synthetic route

2018 ◽  
Vol 47 (35) ◽  
pp. 12414-12419 ◽  
Author(s):  
Alexander Vinokurov ◽  
Galina Chernysheva ◽  
Natalia Mordvinova ◽  
Sergey Dorofeev
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Core Shell ◽  
Synthetic Route ◽  
Inp Quantum Dots

InP QDs doping by silver via a PH3-based synthetic route results in the formation of Ag-doped InP QDs and core–shell Ag/InP nanostructures.

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