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Issue 18, 2016
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Synthesis of silicon-doped reduced graphene oxide and its applications in dye-sensitive solar cells and supercapacitors

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Abstract

Heteroatom-doping of graphene is of fundamental importance to enable a wide range of optoelectronic and energy storage devices while exploring their basic material properties. Herein, a facile and low-cost method is presented to synthesize the silicon-doped reduced graphene oxide (Si-rGO) via annealing treatment of triphenylsilane and graphene oxide. Compared to the pristine reduced graphene oxide (rGO), Si-rGO exhibits significant enhancement in electrocatalytic and electrochemical properties: when Si-rGO is used as a metal-free electrocatalyst in counter electrodes in dye-sensitized solar cells (DSSCs), the conversion efficiency is increased by 29.6%; when Si-rGO is used as an active electrode in a supercapacitor, the specific capacity is increased by 48.5%. This suggests that silicon doping can effectively improve the electrocatalytic ability and electrochemical performance. It is promising for Si-rGO to be used as a metal-free catalytic and active material.

Graphical abstract: Synthesis of silicon-doped reduced graphene oxide and its applications in dye-sensitive solar cells and supercapacitors

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Publication details

The article was received on 05 Dec 2015, accepted on 26 Jan 2016 and first published on 28 Jan 2016


Article type: Paper
DOI: 10.1039/C5RA25962B
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RSC Adv., 2016,6, 15080-15086

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    Synthesis of silicon-doped reduced graphene oxide and its applications in dye-sensitive solar cells and supercapacitors

    Z. Wang, Y. Chen, P. Li, J. He, W. Zhang, Z. Guo, Y. Li and M. Dong, RSC Adv., 2016, 6, 15080
    DOI: 10.1039/C5RA25962B

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