Silicon quantum dots with heavily boron and phosphorus codoped shell

2018 ◽  
Vol 54 (35) ◽  
pp. 4375-4389 ◽  
Author(s):  
Minoru Fujii ◽  
Hiroshi Sugimoto ◽  
Shinya Kano
Keyword(s):  
Quantum Dots ◽  
Near Infrared ◽  
Organic Ligands ◽  
Silicon Quantum Dots ◽  
Fundamental Properties ◽  
Infrared Luminescence

Heavily boron and phosphorus codoped silicon quantum dots (QDs) are dispersible in water without organic ligands and exhibit near infrared luminescence. We summarize the fundamental properties and demonstrate the formation of a variety of nanocomposites.

DNA assembly of silicon quantum dots/gold nanoparticle nanocomposites

RSC Advances ◽  
2016 ◽  
Vol 6 (68) ◽  
pp. 63933-63939 ◽  
Author(s):  
Asuka Inoue ◽  
Hiroshi Sugimoto ◽  
Hidenobu Yaku ◽  
Minoru Fujii
Keyword(s):  
Quantum Dots ◽  
Gold Nanoparticle ◽  
Dna Hybridization ◽  
Near Infrared ◽  
Dna Assembly ◽  
Silicon Quantum Dots ◽  
Infrared Luminescence

We report the formation of a nanocomposite composed of silicon quantum dots (Si-QDs) and a gold nanoparticle (Au-NP) by DNA hybridization. The composites are dispersible in water and exhibit bright near infrared luminescence.

All-inorganic water-dispersible silicon quantum dots: highly efficient near-infrared luminescence in a wide pH range

Nanoscale ◽  
2014 ◽  
Vol 6 (1) ◽  
pp. 122-126 ◽  
Author(s):  
Hiroshi Sugimoto ◽  
Minoru Fujii ◽  
Yuki Fukuda ◽  
Kenji Imakita ◽  
Kensuke Akamatsu
Keyword(s):  
Quantum Dots ◽  
Near Infrared ◽  
Silicon Quantum Dots ◽  
Water Dispersible ◽  
Highly Efficient ◽  
Infrared Luminescence ◽  
Wide Ph Range ◽  
Ph Range

Precise size separation of water-soluble red-to-near-infrared-luminescent silicon quantum dots by gel electrophoresis

Nanoscale ◽  
2020 ◽  
Vol 12 (16) ◽  
pp. 9266-9271
Author(s):  
Minoru Fujii ◽  
Akiko Minami ◽  
Hiroshi Sugimoto
Keyword(s):  
Quantum Dots ◽  
Standard Method ◽  
Gel Electrophoresis ◽  
Near Infrared ◽  
Water Soluble ◽  
Silicon Quantum Dots ◽  
Size Separation ◽  
First Time ◽  
Si Quantum Dots

Gel electrophoresis, which is a standard method for separation and analysis of macromolecules such as DNA, RNA and proteins, is applied for the first time to silicon (Si) quantum dots (QDs) for size separation.

Antibody-conjugated near-infrared luminescent silicon quantum dots for biosensing

2019 ◽  
Vol 9 (3) ◽  
pp. 1079-1086 ◽  
Author(s):  
Hiroto Yanagawa ◽  
Asuka Inoue ◽  
Hiroshi Sugimoto ◽  
Masahiko Shioi ◽  
Minoru Fujii
Keyword(s):  
Quantum Dots ◽  
Near Infrared ◽  
Silicon Quantum Dots ◽  
Image Position

Abstract

Near Infrared Silicon Quantum Dots MOSFET Detector

2009 ◽  
Author(s):  
Jia-Min Shieh ◽  
Wen-Chien Yu ◽  
Chao-Kei Wang ◽  
Bau-Tong Dai ◽  
Hao-Chung Kuo ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Near Infrared ◽  
Silicon Quantum Dots ◽  
Mosfet Detector

Near-infrared silicon quantum dots metal-oxide-semiconductor field-effect transistor photodetector

2009 ◽  
Vol 94 (24) ◽  
pp. 241108 ◽  
Author(s):  
Jia-Min Shieh ◽  
Wen-Chien Yu ◽  
Jung Y. Huang ◽  
Chao-Kei Wang ◽  
Bau-Tong Dai ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Metal Oxide ◽  
Field Effect ◽  
Field Effect Transistor ◽  
Near Infrared ◽  
Metal Oxide Semiconductor ◽  
Oxide Semiconductor ◽  
Silicon Quantum Dots ◽  
Effect Transistor

Colloidally Prepared CdHgTe and HgTe Quantum Dots with Strong Near-Infrared Luminescence

2001 ◽  
Vol 224 (1) ◽  
pp. 153-158 ◽  
Author(s):  
A.L. Rogach ◽  
M.T. Harrison ◽  
S.V. Kershaw ◽  
A. Kornowski ◽  
M.G. Burt ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Near Infrared ◽  
Infrared Luminescence

Plasma Synthesis and Surface Passivation of Silicon Quantum Dots with Photoluminescence Quantum Yields higher than 60%

2006 ◽  
Vol 934 ◽  
Author(s):  
Lorenzo Mangolini ◽  
David Jurbergs ◽  
Elena Rogojina ◽  
Uwe Kortshagen
Keyword(s):  
Quantum Dots ◽  
Silicon Nanocrystals ◽  
Room Temperature ◽  
Surface Passivation ◽  
Organic Ligands ◽  
Quantum Yields ◽  
Plasma Synthesis ◽  
Silicon Quantum Dots ◽  
Chemical Surface ◽  
Wet Chemical

ABSTRACTSilicon nanocrystals with diameters of less than 5 nm show efficient room temperature pho-toluminescence (PL). Previous reports of PL quantum yields for ensembles of silicon quantum dots have usually been in the few percent range, and generally less than 30%. Here we report the plasma synthesis of silicon quantum dots and their subsequent wet-chemical surface passivation with organic ligands while strictly excluding oxygen. Photoluminescence quantum yields as high as 62% have been achieved at peak wavelengths of about 789 nm.

Broadband near-infrared luminescence and tunable optical amplification around 1.55μm and 1.33μm of PbS quantum dots in glasses

2011 ◽  
Vol 509 (38) ◽  
pp. 9335-9339 ◽  
Author(s):  
Guoping Dong ◽  
Botao Wu ◽  
Fangteng Zhang ◽  
Liaolin Zhang ◽  
Mingying Peng ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Near Infrared ◽  
Optical Amplification ◽  
Infrared Luminescence ◽  
Pbs Quantum Dots

Tunable near-Infrared Luminescence of PbSe Quantum Dots for Multigas Analysis

2014 ◽  
Vol 86 (22) ◽  
pp. 11312-11318 ◽  
Author(s):  
Long Yan ◽  
Yu Zhang ◽  
Tieqiang Zhang ◽  
Yi Feng ◽  
Kunbo Zhu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Near Infrared ◽  
Infrared Luminescence
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