Facile one-step sonochemical synthesis of ultrafine and stable fluorescent C-dots

Vijay Bhooshan Kumar; Ze'ev Porat; Aharon Gedanken

doi:10.1016/j.ultsonch.2015.08.005

Facile one-step sonochemical synthesis of ultrafine and stable fluorescent C-dots

Vijay Bhooshan Kumar, Ze'ev Porat, Aharon Gedanken

Department of Civil and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

71 Scopus citations

Abstract

This work describes a one-step synthesis of carbon dots (C-dots), which is carried out by sonication of polyethylene glycol (PEG-400) for 0.5-3 h. The effect of the various experimental parameters, such as sonication time, amplitude and temperature on the size and the fluorescence of the C-dots was studied. It was found that the average diameter of the C-dots is between 2 and 9 nm, depending on the preparation conditions. The highest quantum yield of emission was ∼16%. These high fluorescence properties of the C-dots could be used for bioimaging and for solar cell applications.

Original language	English
Article number	2965
Pages (from-to)	367-375
Number of pages	9
Journal	Ultrasonics Sonochemistry
Volume	28
DOIs	https://doi.org/10.1016/j.ultsonch.2015.08.005
State	Published - 1 Jan 2016

Keywords

C-dots
Fluorescence
PEG-400
Quantum yield
Sonochemistry

ASJC Scopus subject areas

Environmental Chemistry
Chemical Engineering (miscellaneous)
Radiology Nuclear Medicine and imaging
Acoustics and Ultrasonics
Organic Chemistry
Inorganic Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ultsonch.2015.08.005

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title = "Facile one-step sonochemical synthesis of ultrafine and stable fluorescent C-dots",

abstract = "This work describes a one-step synthesis of carbon dots (C-dots), which is carried out by sonication of polyethylene glycol (PEG-400) for 0.5-3 h. The effect of the various experimental parameters, such as sonication time, amplitude and temperature on the size and the fluorescence of the C-dots was studied. It was found that the average diameter of the C-dots is between 2 and 9 nm, depending on the preparation conditions. The highest quantum yield of emission was ∼16%. These high fluorescence properties of the C-dots could be used for bioimaging and for solar cell applications.",

keywords = "C-dots, Fluorescence, PEG-400, Quantum yield, Sonochemistry",

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AU - Kumar, Vijay Bhooshan

AU - Porat, Ze'ev

AU - Gedanken, Aharon

PY - 2016/1/1

Y1 - 2016/1/1

N2 - This work describes a one-step synthesis of carbon dots (C-dots), which is carried out by sonication of polyethylene glycol (PEG-400) for 0.5-3 h. The effect of the various experimental parameters, such as sonication time, amplitude and temperature on the size and the fluorescence of the C-dots was studied. It was found that the average diameter of the C-dots is between 2 and 9 nm, depending on the preparation conditions. The highest quantum yield of emission was ∼16%. These high fluorescence properties of the C-dots could be used for bioimaging and for solar cell applications.

AB - This work describes a one-step synthesis of carbon dots (C-dots), which is carried out by sonication of polyethylene glycol (PEG-400) for 0.5-3 h. The effect of the various experimental parameters, such as sonication time, amplitude and temperature on the size and the fluorescence of the C-dots was studied. It was found that the average diameter of the C-dots is between 2 and 9 nm, depending on the preparation conditions. The highest quantum yield of emission was ∼16%. These high fluorescence properties of the C-dots could be used for bioimaging and for solar cell applications.

KW - C-dots

KW - Fluorescence

KW - PEG-400

KW - Quantum yield

KW - Sonochemistry

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M3 - Article

AN - SCOPUS:84940528225

SN - 1350-4177

VL - 28

SP - 367

EP - 375

JO - Ultrasonics Sonochemistry

JF - Ultrasonics Sonochemistry

M1 - 2965

ER -

Facile one-step sonochemical synthesis of ultrafine and stable fluorescent C-dots

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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