Synthesis of strongly fluorescent graphene quantum dots by cage-opening buckminsterfullerene

Chun Kiang Chua; Zdeněk Sofer; Petr Šimek; Ondřej Jankovský; Kateřina Klímová; Snejana Bakardjieva; Štěpánka Hrdličková Kučková; Martin Pumera

doi:10.1021/nn505639q

Synthesis of strongly fluorescent graphene quantum dots by cage-opening buckminsterfullerene

Chun Kiang Chua, Zdeněk Sofer, Petr Šimek, Ondřej Jankovský, Kateřina Klímová, Snejana Bakardjieva, Štěpánka Hrdličková Kučková, Martin Pumera

Department of Chemical and Biomolecular Engineering

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

166 Citations (Scopus)

Abstract

Graphene quantum dots is a class of graphene nanomaterials with exceptional luminescence properties. Precise dimension control of graphene quantum dots produced by chemical synthesis methods is currently difficult to achieve and usually provides a range of sizes from 3 to 25 nm. In this work, fullerene C₆₀ is used as starting material, due to its well-defined dimension, to produce very small graphene quantum dots (∼2-3 nm). Treatment of fullerene C₆₀ with a mixture of strong acid and chemical oxidant induced the oxidation, cage-opening, and fragmentation processes of fullerene C₆₀. The synthesized quantum dots were characterized and supported by LDI-TOF MS, TEM, XRD, XPS, AFM, STM, FTIR, DLS, Raman spectroscopy, and luminescence analyses. The quantum dots remained fully dispersed in aqueous suspension and exhibited strong luminescence properties, with the highest intensity at 460 nm under a 340 nm excitation wavelength. Further chemical treatments with hydrazine hydrate and hydroxylamine resulted in red- and blue-shift of the luminescence, respectively.

Original language	English
Pages (from-to)	2548-2555
Number of pages	8
Journal	ACS Nano
Volume	9
Issue number	3
DOIs	https://doi.org/10.1021/nn505639q
Publication status	Published - 2015 Mar 24

Bibliographical note

Publisher Copyright:
© 2015 American Chemical Society.

All Science Journal Classification (ASJC) codes

Materials Science(all)
Engineering(all)
Physics and Astronomy(all)

Access to Document

10.1021/nn505639q

Fingerprint Dive into the research topics of 'Synthesis of strongly fluorescent graphene quantum dots by cage-opening buckminsterfullerene'. Together they form a unique fingerprint.

Cite this

@article{e5b274b3d23744549ed2b0c1ae455bb8,

title = "Synthesis of strongly fluorescent graphene quantum dots by cage-opening buckminsterfullerene",

abstract = "Graphene quantum dots is a class of graphene nanomaterials with exceptional luminescence properties. Precise dimension control of graphene quantum dots produced by chemical synthesis methods is currently difficult to achieve and usually provides a range of sizes from 3 to 25 nm. In this work, fullerene C60 is used as starting material, due to its well-defined dimension, to produce very small graphene quantum dots (∼2-3 nm). Treatment of fullerene C60 with a mixture of strong acid and chemical oxidant induced the oxidation, cage-opening, and fragmentation processes of fullerene C60. The synthesized quantum dots were characterized and supported by LDI-TOF MS, TEM, XRD, XPS, AFM, STM, FTIR, DLS, Raman spectroscopy, and luminescence analyses. The quantum dots remained fully dispersed in aqueous suspension and exhibited strong luminescence properties, with the highest intensity at 460 nm under a 340 nm excitation wavelength. Further chemical treatments with hydrazine hydrate and hydroxylamine resulted in red- and blue-shift of the luminescence, respectively.",

author = "Chua, {Chun Kiang} and Zden{\v e}k Sofer and Petr {\v S}imek and Ond{\v r}ej Jankovsk{\'y} and Kate{\v r}ina Kl{\'i}mov{\'a} and Snejana Bakardjieva and {Hrdli{\v c}kov{\'a} Ku{\v c}kov{\'a}}, {\v S}t{\v e}p{\'a}nka and Martin Pumera",

note = "Publisher Copyright: {\textcopyright} 2015 American Chemical Society.",

year = "2015",

month = mar,

day = "24",

doi = "10.1021/nn505639q",

language = "English",

volume = "9",

pages = "2548--2555",

journal = "ACS Nano",

issn = "1936-0851",

publisher = "American Chemical Society",

number = "3",

}

Synthesis of strongly fluorescent graphene quantum dots by cage-opening buckminsterfullerene. / Chua, Chun Kiang; Sofer, Zdeněk; Šimek, Petr; Jankovský, Ondřej; Klímová, Kateřina; Bakardjieva, Snejana; Hrdličková Kučková, Štěpánka; Pumera, Martin.

In: ACS Nano, Vol. 9, No. 3, 24.03.2015, p. 2548-2555.

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

TY - JOUR

T1 - Synthesis of strongly fluorescent graphene quantum dots by cage-opening buckminsterfullerene

AU - Chua, Chun Kiang

AU - Sofer, Zdeněk

AU - Šimek, Petr

AU - Jankovský, Ondřej

AU - Klímová, Kateřina

AU - Bakardjieva, Snejana

AU - Hrdličková Kučková, Štěpánka

AU - Pumera, Martin

PY - 2015/3/24

Y1 - 2015/3/24

N2 - Graphene quantum dots is a class of graphene nanomaterials with exceptional luminescence properties. Precise dimension control of graphene quantum dots produced by chemical synthesis methods is currently difficult to achieve and usually provides a range of sizes from 3 to 25 nm. In this work, fullerene C60 is used as starting material, due to its well-defined dimension, to produce very small graphene quantum dots (∼2-3 nm). Treatment of fullerene C60 with a mixture of strong acid and chemical oxidant induced the oxidation, cage-opening, and fragmentation processes of fullerene C60. The synthesized quantum dots were characterized and supported by LDI-TOF MS, TEM, XRD, XPS, AFM, STM, FTIR, DLS, Raman spectroscopy, and luminescence analyses. The quantum dots remained fully dispersed in aqueous suspension and exhibited strong luminescence properties, with the highest intensity at 460 nm under a 340 nm excitation wavelength. Further chemical treatments with hydrazine hydrate and hydroxylamine resulted in red- and blue-shift of the luminescence, respectively.

AB - Graphene quantum dots is a class of graphene nanomaterials with exceptional luminescence properties. Precise dimension control of graphene quantum dots produced by chemical synthesis methods is currently difficult to achieve and usually provides a range of sizes from 3 to 25 nm. In this work, fullerene C60 is used as starting material, due to its well-defined dimension, to produce very small graphene quantum dots (∼2-3 nm). Treatment of fullerene C60 with a mixture of strong acid and chemical oxidant induced the oxidation, cage-opening, and fragmentation processes of fullerene C60. The synthesized quantum dots were characterized and supported by LDI-TOF MS, TEM, XRD, XPS, AFM, STM, FTIR, DLS, Raman spectroscopy, and luminescence analyses. The quantum dots remained fully dispersed in aqueous suspension and exhibited strong luminescence properties, with the highest intensity at 460 nm under a 340 nm excitation wavelength. Further chemical treatments with hydrazine hydrate and hydroxylamine resulted in red- and blue-shift of the luminescence, respectively.

UR - http://www.scopus.com/inward/record.url?scp=84925666785&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84925666785&partnerID=8YFLogxK

U2 - 10.1021/nn505639q

DO - 10.1021/nn505639q

M3 - Article

AN - SCOPUS:84925666785

VL - 9

SP - 2548

EP - 2555

JO - ACS Nano

JF - ACS Nano

SN - 1936-0851

IS - 3

ER -

Synthesis of strongly fluorescent graphene quantum dots by cage-opening buckminsterfullerene

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Cite this