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Investigation on Fluorescence Quenching Mechanism of Perylene Diimide Dyes by Graphene Oxide

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Department of Applied Statistics and Sciences, Xijing University, Xi’an 710123, China
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Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China
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State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Alexandru Mihai Grumezescu
Molecules 2016, 21(12), 1642; https://doi.org/10.3390/molecules21121642
Received: 15 September 2016 / Revised: 21 November 2016 / Accepted: 23 November 2016 / Published: 30 November 2016
Perylene diimide derivatives were used as probes to investigate the effect of the molecular structures on the fluorescence quenching mechanism in a perylene diimide/graphene oxide system. The electrons transferred from the excited state of dyes to the conductive band of graphene oxide with different concentrations were determined by fluorescence spectra. The results indicated that the quenching efficiency of perylene diimides by graphene oxide was not only dependent on the difference between the lowest unoccupied molecular orbital level of dyes and the conduction band of the graphene oxide, but also mainly on the difference in the molecular structures. View Full-Text
Keywords: electron transfer; perylene diimide dyes; fluorescence quenching mechanism; graphite oxide electron transfer; perylene diimide dyes; fluorescence quenching mechanism; graphite oxide
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MDPI and ACS Style

Zhao, Y.; Li, K.; He, Z.; Zhang, Y.; Zhao, Y.; Zhang, H.; Miao, Z. Investigation on Fluorescence Quenching Mechanism of Perylene Diimide Dyes by Graphene Oxide. Molecules 2016, 21, 1642.

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