On-chip energy storage integrated with solar cells using a laser scribed graphene oxide film

We demonstrate an on-chip concept of the energy storage integrated with crystalline silicon solar cells using a laser scribed graphene oxide film, which can lead to the miniaturization in size and the minimization in cost of optoelectronic devices. The integrated solar supercapacitor with 62% columb...

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Bibliographic Details
Published in:Applied physics letters 2015-07, Vol.107 (3), p.31105
Main Authors: Thekkekara, Litty V., Jia, Baohua, Zhang, Yinan, Qiu, Ling, Li, Dan, Gu, Min
Format: Article
Language:English
Subjects:
Applied physics
Electrolytic capacitors
Electrolytic cells
Energy storage
Graphene
Miniaturization
Optoelectronic devices
Oxide coatings
Photovoltaic cells
Silicon wafers
Solar cells
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Summary:We demonstrate an on-chip concept of the energy storage integrated with crystalline silicon solar cells using a laser scribed graphene oxide film, which can lead to the miniaturization in size and the minimization in cost of optoelectronic devices. The integrated solar supercapacitor with 62% columbic efficiency is directly written on the reverse side of solar cell without any loss in the solar cell performance. The energy and power density of the obtained energy storage devices are comparable to those of electrolytic capacitors even after a number of charging-discharging measurements.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4927145