Issue 24, 2012
From the journal:

Journal of Materials Chemistry

Understanding the effects of the structures on the energy gaps in carbon nanoparticles from laser synthesis

Shengliang Hu,*ab   Yan Guo,b   Yingge Dong,b   Jinlong Yang,bc   Jun Liua  and  Shirui Caob  

* Corresponding authors

a Key Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, Science and Technology on Electronic Test and Measurement Laboratory, Taiyuan 030051, P. R. China
E-mail: hsliang@yeah.net
Fax: +86 351 3559638
Tel: +86 351 3559638

b School of Material Science and Engineering, North University of China, Taiyuan 030051, P. R. China

c State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, P. R. China

Abstract

The effects of the structures on the energy gaps in luminescent carbon nanoparticles (CNPs) were investigated. On the one hand, we fabricated CNPs with the different structures and a uniform size and then analyzed their photoluminescence (PL) behaviors. On the other hand, we calculated the dependence of the structures on the energy gaps in CNPs by a simple quantitative model. Both the experimental and calculated results show that the luminescent CNPs contain a mixture of sp2 and sp3 bonding and hence their PL behaviors and energy gaps are determined by the fraction of sp2-hybridized carbon atoms.

Graphical abstract: Understanding the effects of the structures on the energy gaps in carbon nanoparticles from laser synthesis

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Article information

DOI
https://doi.org/10.1039/C2JM30584D
Article type
Paper
Submitted
31 Jan 2012
Accepted
20 Apr 2012
First published
24 Apr 2012

J. Mater. Chem., 2012,22, 12053-12057

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Understanding the effects of the structures on the energy gaps in carbon nanoparticles from laser synthesis

S. Hu, Y. Guo, Y. Dong, J. Yang, J. Liu and S. Cao, J. Mater. Chem., 2012, 22, 12053 DOI: 10.1039/C2JM30584D

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