A Single-Step Electrochemical Synthesis of Luminescent WS2 Quantum Dots

2017 ◽  
Vol 23 (38) ◽  
pp. 9144-9148 ◽  
Author(s):  
Manila O. Valappil ◽  
Athira Anil ◽  
Manikoth Shaijumon ◽  
Vijayamohanan K. Pillai ◽  
Subbiah Alwarappan
Keyword(s):  
Quantum Dots ◽  
Electrochemical Synthesis ◽  
Single Step

A single-step, electrochemical synthesis of nitrogen doped blue luminescent phosphorene quantum dots

2018 ◽  
Vol 54 (83) ◽  
pp. 11733-11736 ◽  
Author(s):  
Manila Ozhukil Valappil ◽  
Monika Ahlawat ◽  
Vijayamohanan K. Pillai ◽  
Subbiah Alwarappan
Keyword(s):  
Quantum Dots ◽  
Electrochemical Synthesis ◽  
Supporting Electrolyte ◽  
Single Step ◽  
Black Phosphorus ◽  
Electrochemical Preparation ◽  
Nitrogen Doped ◽  
One Step

A one-step electrochemical preparation of nitrogen doped, blue luminescent phosphorene quantum dots from black phosphorus using a nitrogen-laden solvent and supporting electrolyte.

scholarly journals Ligand-Length Modification in CsPbBr3 Perovskite Nanocrystals and Bilayers with PbS Quantum Dots for Improved Photodetection Performance

Nanomaterials ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1297 ◽  
Author(s):  
Juan Navarro Arenas ◽  
Ananthakumar Soosaimanickam ◽  
Hamid Pashaei Adl ◽  
Rafael Abargues ◽  
Pablo P. Boix ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Surface Chemistry ◽  
Optical Sensors ◽  
Ligand Exchange ◽  
Near Infrared ◽  
Future Internet ◽  
Single Step ◽  
Perovskite Nanocrystals ◽  
Internet Of Things Technology ◽  
Pbs Quantum Dots

Nanocrystals surface chemistry engineering offers a direct approach to tune charge carrier dynamics in nanocrystals-based photodetectors. For this purpose, we have investigated the effects of altering the surface chemistry of thin films of CsPbBr3 perovskite nanocrystals produced by the doctor blading technique, via solid state ligand-exchange using 3-mercaptopropionic acid (MPA). The electrical and electro-optical properties of photovoltaic and photoconductor devices were improved after the MPA ligand exchange, mainly because of a mobility increase up to 5 × 10−3 cm 2 / Vs . The same technology was developed to build a tandem photovoltaic device based on a bilayer of PbS quantum dots (QDs) and CsPbBr3 perovskite nanocrystals. Here, the ligand exchange was successfully carried out in a single step after the deposition of these two layers. The photodetector device showed responsivities around 40 and 20 mA/W at visible and near infrared wavelengths, respectively. This strategy can be of interest for future visible-NIR cameras, optical sensors, or receivers in photonic devices for future Internet-of-Things technology.

scholarly journals Microplasma-assisted electrochemical synthesis of Co3O4 nanoparticles in absolute ethanol for energy applications

2018 ◽  
Vol 20 (9) ◽  
pp. 2101-2109 ◽  
Author(s):  
Chengsheng Ni ◽  
Darragh Carolan ◽  
Conor Rocks ◽  
Jianing Hui ◽  
Zeguo Fang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electrochemical Synthesis ◽  
Absolute Ethanol ◽  
Co3o4 Nanoparticles ◽  
Energy Applications

The anodisation of Co foil in an absolute ethanol electrolyte with a microplasma cathode produces size-controllable Co3O4 quantum dots.

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