Issue 23, 2014

The mechanism of blue photoluminescence from carbon nanodots

Abstract

The blue photoluminescence from carbon nanodots (CNDs) weakens gradually and the most intense peak red-shifts slightly as the hydrothermal reaction time increases. The 890 cm−1 infrared vibration band, which is associated with carbon defects, decreases with the reaction time being consistent with the blue emission tendency. Based on the growth model of CNDs and understanding of photoluminescence from other carbon nanomaterials, carbon defects are believed to be responsible for the blue emission.

Graphical abstract: The mechanism of blue photoluminescence from carbon nanodots

Article information

Article type
Paper
Submitted
26 Jan 2014
Accepted
20 Mar 2014
First published
21 Mar 2014

CrystEngComm, 2014,16, 4981-4986

Author version available

The mechanism of blue photoluminescence from carbon nanodots

Z. Gan, X. Wu and Y. Hao, CrystEngComm, 2014, 16, 4981 DOI: 10.1039/C4CE00200H

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