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Electrogenerated chemiluminescence from carbon dots

Published online by Cambridge University Press:  24 March 2011

L. Sun ,
T.-H. Teng ,
Md. H. Rashid ,
M. Krysmann ,
P. Dallas ,
Y. Wang ,
B.-R. Hyun ,
A. C. Bartnik ,
G. G. Malliaras  and
F. W. Wise
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L. Sun
Affiliation:
Material Science and Engineering Department, Cornell University, Ithaca, NY14853, USA School of Applied and Engineering Physics, Cornell University, Ithaca, NY14853, USA
T.-H. Teng
Affiliation:
Material Science and Engineering Department, Cornell University, Ithaca, NY14853, USA
Md. H. Rashid
Affiliation:
Material Science and Engineering Department, Cornell University, Ithaca, NY14853, USA
M. Krysmann
Affiliation:
Material Science and Engineering Department, Cornell University, Ithaca, NY14853, USA
P. Dallas
Affiliation:
Material Science and Engineering Department, Cornell University, Ithaca, NY14853, USA
Y. Wang
Affiliation:
Material Science and Engineering Department, Cornell University, Ithaca, NY14853, USA
B.-R. Hyun
Affiliation:
School of Applied and Engineering Physics, Cornell University, Ithaca, NY14853, USA
A. C. Bartnik
Affiliation:
School of Applied and Engineering Physics, Cornell University, Ithaca, NY14853, USA
G. G. Malliaras
Affiliation:
Material Science and Engineering Department, Cornell University, Ithaca, NY14853, USA
F. W. Wise
Affiliation:
School of Applied and Engineering Physics, Cornell University, Ithaca, NY14853, USA
E. P. Giannelis
Affiliation:
Material Science and Engineering Department, Cornell University, Ithaca, NY14853, USA
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Abstract

We report an interesting property of carbon dots: they emit light under charge injection. We synthesized carbon dots in diameter about 20 nm using wet chemistry methods. The photoluminescence quantum efficiency of the carbon dots dissolved in water was about 11%. We observed strong electrogenerated chemiluminescence (ECL) from the sample. This observation of ECL from carbon dots indicates that they could be a good candidate material for carbon-based electroluminescent devices.

Keywords

Celectronic materialoptoelectronic

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1284: Symposium C – Fundamentals of Low-Dimensional Carbon Nanomaterials , 2011 , mrsf10-1284-c10-10
Copyright
Copyright © Materials Research Society 2011

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References

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