Facile method to sort graphene quantum dots by size through ammonium sulfate addition

Seongwoo Ryu; Kyueui Lee; Soon Hyung Hong; Haeshin Lee

doi:10.1039/c4ra07032a

Facile method to sort graphene quantum dots by size through ammonium sulfate addition

Seongwoo Ryu, Kyueui Lee, Soon Hyung Hong, Haeshin Lee

Korea Advanced Institute of Science and Technology

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

14 Scopus citations

Abstract

We report a method to purify graphene quantum dots size simply by adding ammonium sulfate. The addition of a salt to a heterogeneous GQD suspension results into the sorting of GQD sub-populations with diameters corresponding to 2.7 ± 1.6, 5.1 ± 1.5, 13.3 ± 1.9, and 18.7 ± 4.4 nm. These GQDs also exhibit different optical properties.

Original language	English
Pages (from-to)	56848-56852
Number of pages	5
Journal	RSC Advances
Volume	4
Issue number	100
DOIs	https://doi.org/10.1039/c4ra07032a
State	Published - 2014

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10.1039/c4ra07032a

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title = "Facile method to sort graphene quantum dots by size through ammonium sulfate addition",

abstract = "We report a method to purify graphene quantum dots size simply by adding ammonium sulfate. The addition of a salt to a heterogeneous GQD suspension results into the sorting of GQD sub-populations with diameters corresponding to 2.7 ± 1.6, 5.1 ± 1.5, 13.3 ± 1.9, and 18.7 ± 4.4 nm. These GQDs also exhibit different optical properties.",

author = "Seongwoo Ryu and Kyueui Lee and Hong, \{Soon Hyung\} and Haeshin Lee",

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AU - Ryu, Seongwoo

AU - Lee, Kyueui

AU - Hong, Soon Hyung

AU - Lee, Haeshin

N1 - Publisher Copyright: © The Royal Society of Chemistry 2014.

PY - 2014

Y1 - 2014

N2 - We report a method to purify graphene quantum dots size simply by adding ammonium sulfate. The addition of a salt to a heterogeneous GQD suspension results into the sorting of GQD sub-populations with diameters corresponding to 2.7 ± 1.6, 5.1 ± 1.5, 13.3 ± 1.9, and 18.7 ± 4.4 nm. These GQDs also exhibit different optical properties.

AB - We report a method to purify graphene quantum dots size simply by adding ammonium sulfate. The addition of a salt to a heterogeneous GQD suspension results into the sorting of GQD sub-populations with diameters corresponding to 2.7 ± 1.6, 5.1 ± 1.5, 13.3 ± 1.9, and 18.7 ± 4.4 nm. These GQDs also exhibit different optical properties.

UR - https://www.scopus.com/pages/publications/84908611409

U2 - 10.1039/c4ra07032a

DO - 10.1039/c4ra07032a

M3 - Article

AN - SCOPUS:84908611409

SN - 2046-2069

VL - 4

SP - 56848

EP - 56852

JO - RSC Advances

JF - RSC Advances

IS - 100

ER -

Facile method to sort graphene quantum dots by size through ammonium sulfate addition

Abstract

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