Effect of Thermal Cross-Linking of 4-Ethynylstyryl Capping Groups on Electronic Coupling between Silicon Quantum Dots in Silicon Quantum Dot Solids

2017 ◽  
Vol 121 (29) ◽  
pp. 15957-15969 ◽  
Author(s):  
Thu-Huong Le ◽  
Ki-Jeong Kim ◽  
Hyun-Dam Jeong
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Cross Linking ◽  
Electronic Coupling ◽  
Silicon Quantum Dots ◽  
Silicon Quantum Dot

Plasma engineering of silicon quantum dots and their properties through energy deposition and chemistry

2016 ◽  
Vol 18 (37) ◽  
pp. 25837-25851 ◽  
Author(s):  
Bibhuti Bhusan Sahu ◽  
Yongyi Yin ◽  
Sven Gauter ◽  
Jeon Geon Han ◽  
Holger Kersten
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Energy Deposition ◽  
Plasma Chemistry ◽  
Silicon Quantum Dots ◽  
Silicon Quantum Dot ◽  
Deposition Energy

The authors growth and microstructure of a silicon quantum dot film by tailoring the plasma chemistry and deposition energy are studied.

Phosphorus-doped silicon quantum dots for all-silicon quantum dot tandem solar cells

2009 ◽  
Vol 93 (9) ◽  
pp. 1524-1530 ◽  
Author(s):  
X.J. Hao ◽  
E.-C. Cho ◽  
G. Scardera ◽  
Y.S. Shen ◽  
E. Bellet-Amalric ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
Silicon Quantum Dots ◽  
Tandem Solar Cells ◽  
Silicon Quantum Dot ◽  
Doped Silicon ◽  
Phosphorus Doped

Silicon quantum dot-assisted synthesis of MoS2/rGO sandwich structures with excellent supercapacitive performance

2019 ◽  
Vol 43 (22) ◽  
pp. 8660-8668 ◽  
Author(s):  
Jinzhu Wu ◽  
Beibei Li ◽  
Yaxiu Feng ◽  
Yanbin Shao ◽  
Xiaohong Wu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Electrochemical Performance ◽  
Sandwich Structure ◽  
Sandwich Structures ◽  
Silicon Quantum Dots ◽  
Supercapacitive Performance ◽  
Silicon Quantum Dot ◽  
Excellent Electrochemical Performance

A MoS2/rGO nanocomposite with a unique sandwich structure is synthesized by using silicon quantum dots (SiQDs), exhibiting excellent electrochemical performance for supercapacitors.

Silicon quantum dot involved luminol chemiluminescence and its sensitive detection of dopamine

2018 ◽  
Vol 10 (34) ◽  
pp. 4129-4135 ◽  
Author(s):  
Lei Zhang ◽  
ZhaoRong Tang ◽  
YongPing Dong
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Microwave Irradiation ◽  
Sensitive Detection ◽  
Silicon Quantum Dots ◽  
Water Dispersible ◽  
Luminol Chemiluminescence ◽  
Silicon Quantum Dot

Water dispersible silicon quantum dots (SiQDs) were synthesized by in situ growth under microwave irradiation.

scholarly journals 4.2 K sensitivity-tunable radio frequency reflectometry of a physically defined p-channel silicon quantum dot

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sinan Bugu ◽  
Shimpei Nishiyama ◽  
Kimihiko Kato ◽  
Yongxun Liu ◽  
Shigenori Murakami ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Radio Frequency ◽  
Liquid Helium ◽  
Signal To Noise Ratio ◽  
Matching Condition ◽  
Silicon On Insulator ◽  
Signal To Noise ◽  
Silicon Quantum Dot ◽  
Optimal Signal

AbstractWe demonstrate the measurement of p-channel silicon-on-insulator quantum dots at liquid helium temperatures by using a radio frequency (rf) reflectometry circuit comprising of two independently tunable GaAs varactors. This arrangement allows observing Coulomb diamonds at 4.2 K under nearly best matching condition and optimal signal-to-noise ratio. We also discuss the rf leakage induced by the presence of the large top gate in MOS nanostructures and its consequence on the efficiency of rf-reflectometry. These results open the way to fast and sensitive readout in multi-gate architectures, including multi qubit platforms.

A Tale of Seemingly “Identical” Silicon Quantum Dot Families: Structural Insight into Silicon Quantum Dot Photoluminescence

2020 ◽  
Author(s):  
Alyxandra Thiessen ◽  
Lijuan Zhang ◽  
Anton Oliynyk ◽  
Haoyang Yu ◽  
Kevin O'Connor ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Optical Response ◽  
Chemical Compositions ◽  
Luminescent Solar Concentrators ◽  
Mass Approximation ◽  
Silicon Quantum Dot ◽  
Earth Abundant ◽  
Structural Insight ◽  
Insight Into

<p>Two quantum dots, both alike in composition, but differing in structure, where we lay our scene. From broader classes, to bring deeper understanding, to the crystalline core that drives the quantum dot's sheen. In this contribution we examine two families of silicon quantum dots (SiQDs) that bring to mind the Capulets and the Montagues in Shakespeare’s Romeo and Juliet because of their stark similarities and differences. SiQDs are highly luminescent, heavy-metal-free and based upon earth-abundant elements. As such, they have attracted attention for far reaching applications ranging from biological imaging to luminescent solar concentrators to light-emitting diodes that rely on their size-dependent optical response. Unfortunately, correlating SiQD “size” to their photoluminescence maximum is often challenging. Herein, we provide essential structural insight into the correlation of SiQD dimension and PL maximum through a direct comparison of samples that exhibit statistically identical physical dimensions (d<sub>TEM</sub>) and chemical compositions, but different crystallite size (d<sub>XRD</sub>) and PL maxima. We then expand the scope of this investigation and systematically compare groupings of SiQDs: one in which the d<sub>XRD</sub> and d<sub>TEM</sub> agree and one where d<sub>XRD </sub>< d<sub>TEM</sub>. This latter comparison clearly shows d<sub>XRD</sub> better predicts SiQD optical response when using the well-established effective mass approximation. </p>

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