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

84 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

UN SDGs

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

SDG 7 Affordable and Clean Energy

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

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10.1016/j.ultsonch.2015.08.005

Cite this

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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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year = "2016",

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doi = "10.1016/j.ultsonch.2015.08.005",

language = "English",

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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

UR - https://www.scopus.com/pages/publications/84940528225

U2 - 10.1016/j.ultsonch.2015.08.005

DO - 10.1016/j.ultsonch.2015.08.005

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

UN SDGs

Keywords

ASJC Scopus subject areas

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