Photoluminescent silicon quantum dots in core/shell configuration: synthesis by low temperature and spontaneous plasma processing

2010 ◽  
Vol 22 (5) ◽  
pp. 055601 ◽  
Author(s):  
Debajyoti Das ◽  
Arup Samanta
Keyword(s):  
Quantum Dots ◽  
Low Temperature ◽  
Plasma Processing ◽  
Core Shell ◽  
Silicon Quantum Dots ◽  
Configuration Synthesis

Low temperature radical initiated hydrosilylation of silicon quantum dots

2020 ◽  
Vol 222 ◽  
pp. 190-200
Author(s):  
Timothy T. Koh ◽  
Tingting Huang ◽  
Joseph Schwan ◽  
Pan Xia ◽  
Sean T. Roberts ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Low Temperature ◽  
Thermal Plasma ◽  
Silicon Quantum Dots ◽  
Radical Initiator ◽  
Non Thermal Plasma

Non-thermal plasma synthesized silicon QDs are functionalized with aromatic and aliphatic ligands using a 2,2′-azobis(2-methylpropionitrile) AIBN radical initiator with hydrosilylation at 60 °C for photon upconversion.

A simple synthesis route of low temperature CdSe-CdS core-shell quantum dots and its application in solar cell

2018 ◽  
Vol 82 ◽  
pp. 135-140 ◽  
Author(s):  
Karan Surana ◽  
Ibrahim T. Salisu ◽  
R.M. Mehra ◽  
Bhaskar Bhattacharya
Keyword(s):  
Quantum Dots ◽  
Solar Cell ◽  
Low Temperature ◽  
Simple Synthesis ◽  
Core Shell ◽  
Synthesis Route

Silanization of Low-Temperature-Plasma Synthesized Silicon Quantum Dots for Production of a Tunable, Stable, Colloidal Solution

2012 ◽  
Vol 116 (6) ◽  
pp. 3979-3987 ◽  
Author(s):  
I. E. Anderson ◽  
R. A. Shircliff ◽  
C. Macauley ◽  
D. K. Smith ◽  
B. G. Lee ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Low Temperature ◽  
Colloidal Solution ◽  
Low Temperature Plasma ◽  
Silicon Quantum Dots ◽  
Temperature Plasma

scholarly journals Low-Temperature Synthesis of Highly Efficient, Deep-Red Zn-Cu-In-Se/ZnSe Fluorescence Quantum Dots

NANO ◽  
2019 ◽  
Vol 14 (06) ◽  
pp. 1950070
Author(s):  
Juan Yang ◽  
Jingling Li ◽  
Yanqing Zhu ◽  
Xueqing Xu ◽  
Xiudi Xiao ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Low Temperature ◽  
Synthesis Method ◽  
Metal Sulfide ◽  
Intrinsic Defect ◽  
Core Shell ◽  
Nonradiative Recombination ◽  
Zn Doping ◽  
Sulfide Clusters ◽  
The One

We report a facile synthesis method on CuInSe2 (CISe)-based quantum dots (QDs) by using tri-[Formula: see text]-octylphosphine selenium (TOPSe) as selenide precursor, with assistance of oleylamine (OAm) and [Formula: see text]-dodecanethiol (DDT). We demonstrate that the OAm and DDT jointly contribute to the formation of the low-temperature-decomposable metal-sulfide clusters, and promote the QD nucleation at relatively low temperature range of 180–200∘C. Furthermore, to improve fluorescence property, Zn-doping and ZnSe coating are simultaneously carried out. The obtained deep-red ZnCISe/ZnSe QDs possess higher quantum yield of 65% at wavelength of 670[Formula: see text]nm, which is in the best performance range ever reported. Then, we investigate the improvement mechanism, where the sufficient Zn replacement of In sites is the crucial factor. This modified core–shell structure provides two benefits, on the one hand, the enhancement on intrinsic defect-related recombination, and the other hand, the improved core–shell interface that reduces the nonradiative recombination.

Revealing mechanisms of PL properties at high and low temperature regimes in CdSe/ZnS core/shell quantum dots

2018 ◽  
Vol 124 (4) ◽  
pp. 044302 ◽  
Author(s):  
Bo Li ◽  
Weilong Liu ◽  
Lin Yan ◽  
Xiaojun Zhu ◽  
Yanqiang Yang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Low Temperature ◽  
Core Shell ◽  
Temperature Regimes

Time-Resolved Photoluminescence Study of MnS/ZnS Core/Shell Quantum Dots at High Pressure and Low Temperature

2021 ◽  
Vol 125 (40) ◽  
pp. 22354-22359
Author(s):  
Da Huang ◽  
He Wang ◽  
Wei Zhao ◽  
Rucheng Dai ◽  
Zhongping. Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
High Pressure ◽  
Low Temperature ◽  
Core Shell ◽  
Time Resolved ◽  
Photoluminescence Study ◽  
Time Resolved Photoluminescence

Low temperature synthesis of silicon quantum dots with plasma chemistry control in dual frequency non-thermal plasmas

2016 ◽  
Vol 18 (23) ◽  
pp. 15697-15710 ◽  
Author(s):  
Bibhuti Bhusan Sahu ◽  
Yongyi Yin ◽  
Jeon Geon Han ◽  
Masaharu Shiratani
Keyword(s):  
Quantum Dots ◽  
Low Temperature ◽  
Plasma Chemistry ◽  
Thermal Plasmas ◽  
Dual Frequency ◽  
Low Temperature Synthesis ◽  
Temperature Synthesis ◽  
Silicon Quantum Dots ◽  
Low Temperature Deposition ◽  
Temperature Deposition

The design of advanced plasma processes by plasma and radical control is essential for the controlled low-temperature deposition of different size QDs.

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