scholarly journals Deep Ultraviolet to Near-Infrared Emission and Photoresponse in Layered N-Doped Graphene Quantum Dots

ACS Nano ◽  
2014 ◽  
Vol 8 (6) ◽  
pp. 6312-6320 ◽  
Author(s):  
Libin Tang ◽  
Rongbin Ji ◽  
Xueming Li ◽  
Gongxun Bai ◽  
Chao Ping Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Near Infrared ◽  
Graphene Quantum Dots ◽  
Infrared Emission ◽  
Doped Graphene ◽  
Deep Ultraviolet ◽  
Near Infrared Emission

scholarly journals Extending the Near-Infrared Emission Range of Indium Phosphide Quantum Dots for Multiplexed In Vivo Imaging

Nano Letters ◽  
2021 ◽  
Author(s):  
Alexander M. Saeboe ◽  
Alexey Yu. Nikiforov ◽  
Reyhaneh Toufanian ◽  
Joshua C. Kays ◽  
Margaret Chern ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Indium Phosphide ◽  
In Vivo Imaging ◽  
Near Infrared ◽  
Infrared Emission ◽  
Near Infrared Emission

Vapour Sensitivity of InP Surface Quantum Dots

2014 ◽  
Vol 605 ◽  
pp. 177-180 ◽  
Author(s):  
Roberta de Angelis ◽  
Mauro Casalboni ◽  
Liliana D’Amico ◽  
Fabio de Matteis ◽  
Fariba Hatami ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Room Temperature ◽  
Near Infrared ◽  
Surface Recombination ◽  
Surface States ◽  
Infrared Emission ◽  
Polar Solvents ◽  
Solvent Type ◽  
Near Infrared Emission ◽  
Inp Surface

We studied the effect of solvent vapours on the photoluminescent emission of self-assembled InP surface quantum dots (SQDs). Their room temperature near infrared emission undergoes a fully reversible intensity enhancement when the dots were exposed to vapours of polar solvents since polar molecules are likely to be adsorbed onto intrinsic surface states and thus reducing non radiative surface recombination. The shape and position of the emission band does not change. The observed effect is dependent on solvent type and concentration with linear law over a limited concentration range.

Near-infrared emission from PbS quantum dots in polymer matrix

2007 ◽  
Vol 3 (5) ◽  
pp. 337-338 ◽  
Author(s):  
Xiao-song Zhang ◽  
Xiao-yi Dong ◽  
Yan-ge Liu ◽  
Gui-yun Kai ◽  
Zhi Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Polymer Matrix ◽  
Near Infrared ◽  
Infrared Emission ◽  
Near Infrared Emission ◽  
Pbs Quantum Dots

scholarly journals Extending the Near Infrared Emission Range of Indium Phosphide Quantum Dots for Multiplexed In Vivo Imaging

2021 ◽  
Author(s):  
Alexander M. Saeboe ◽  
Alexey Y. Nikiforov ◽  
Reyhaneh Toufanian ◽  
Joshua C. Kays ◽  
Margaret Chern ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Indium Phosphide ◽  
Near Infrared ◽  
Infrared Emission ◽  
Full Potential ◽  
Lymph Node Imaging ◽  
Nir Imaging ◽  
Near Infrared Emission ◽  
Tunable Emission

AbstractThis report of the reddest emitting indium phosphide quantum dots (InP QDs) to date demonstrates tunable, near infrared (NIR) photoluminescence and fluorescence multiplexing in the first optical tissue window with a material that avoids toxic constituents. This synthesis overcomes the InP synthesis “growth bottleneck” and extends the emission peak of InP QDs deeper into the first optical tissue window using an inverted QD heterostructure. The ZnSe/InP/ZnS core/shell/shell structure is designed to produce emission from excitons with heavy holes confined in InP shells wrapped around larger-bandgap ZnSe cores and protected by a second shell of ZnS. The InP QDs exhibit InP shell thickness-dependent tunable emission with peaks ranging from 515 – 845 nm. The high absorptivity of InP leads to effective absorbance and photoexcitation of the QDs with UV, visible, and NIR wavelengths in particles with diameters of eight nanometers or less. These nanoparticles extend the range of tunable direct-bandgap emission from InP-based nanostructures, effectively overcoming a synthetic barrier that has prevented InP-based QDs from reaching their full potential as NIR imaging agents. Multiplexed lymph node imaging in a mouse model shows the potential of the NIR-emitting InP particles for in vivo imaging.

Near‐Infrared Emission from Tin–Lead (Sn–Pb) Alloyed Perovskite Quantum Dots by Sodium Doping

2020 ◽  
Vol 59 (22) ◽  
pp. 8421-8424 ◽  
Author(s):  
Feng Liu ◽  
Junke Jiang ◽  
Yaohong Zhang ◽  
Chao Ding ◽  
Taro Toyoda ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Near Infrared ◽  
Infrared Emission ◽  
Sodium Doping ◽  
Perovskite Quantum Dots ◽  
Near Infrared Emission

Nitrogen-Doped Graphene Quantum Dots as Metal-Free Photocatalysts for Near-Infrared Enhanced Reduction of 4-Nitrophenol

2019 ◽  
Vol 2 (11) ◽  
pp. 7043-7050 ◽  
Author(s):  
Hongji Liu ◽  
Hui Wang ◽  
Yong Qian ◽  
Jianqin Zhuang ◽  
Lin Hu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Near Infrared ◽  
Graphene Quantum Dots ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

Biocompatible off-stoichiometric copper indium sulfide quantum dots with tunable near-infrared emission via aqueous based synthesis

2019 ◽  
Vol 55 (100) ◽  
pp. 15053-15056 ◽  
Author(s):  
Mingxia Jiao ◽  
Xiaodan Huang ◽  
Linzheng Ma ◽  
Yun Li ◽  
Peisen Zhang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Near Infrared ◽  
Infrared Emission ◽  
Indium Sulfide ◽  
Copper Indium ◽  
Near Infrared Emission

Off-stoichiometry effects on the near-infrared emission of the aqueous based biocompatible copper indium sulfide quantum dots are revealed.

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