Issue 7, 2015
From the journal:

Chemical Science

Capping nanoparticles with graphene quantum dots for enhanced thermoelectric performance†

Yuantong Liang,ab   Chenguang Lu,*a   Defang Ding,a   Man Zhao,a   Dawei Wang,a   Chao Hu,c   Jieshan Qiu,c   Gang Xie*b  and  Zhiyong Tang*a  

* Corresponding authors

a CAS Key Lab for Nanosystem and Hierarchy Fabrication, National Center for Nanoscience and Technology, Beijing, China
E-mail: lucg@nanoctr.cn, zytang@nanoctr.cn

b Key Laboratory of Synthesis and Natural Functional Molecular Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, China
E-mail: xiegang@nwu.edu.cn

c Carbon Research Laboratory, Center for Nano Materials and Science, State Key Laboratory of Fine Chemicals, School of Chemical Engineering and Key Laboratory for Micro/Nano Technology of Liaoning Province, Dalian University of Technology, Dalian 116024, China

Abstract

Graphene quantum dots (GQDs) are shown to serve as phase transfer agents to transfer various types of nanoparticles (NPs) from non-polar to polar solvents. Thorough characterization of the NPs proves complete native ligand exchange. Pellets of this GQD–NP composite show that the GQDs limit the crystal size during spark plasma sintering, yielding enhanced thermoelectric performance compared with NPs exchanged with inorganic ions. A photoluminescence study of the GQD–NP composite also suggests energy transfer from GQDs to NPs.

Graphical abstract: Capping nanoparticles with graphene quantum dots for enhanced thermoelectric performance

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Article information

DOI
https://doi.org/10.1039/C5SC00910C
Article type
Edge Article
Submitted
12 Mar 2015
Accepted
13 Apr 2015
First published
13 Apr 2015
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY license

Chem. Sci., 2015,6, 4103-4108

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Capping nanoparticles with graphene quantum dots for enhanced thermoelectric performance

Y. Liang, C. Lu, D. Ding, M. Zhao, D. Wang, C. Hu, J. Qiu, G. Xie and Z. Tang, Chem. Sci., 2015, 6, 4103 DOI: 10.1039/C5SC00910C

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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