All Silicon Electrode Photocapacitor for Integrated Energy Storage and Conversion

Adam P. Cohn; William R. Erwin; Keith Share; Landon Oakes; Andrew S. Westover; Rachel E. Carter; Rizia Bardhan; Cary L. Pint

doi:10.1021/acs.nanolett.5b00563

All Silicon Electrode Photocapacitor for Integrated Energy Storage and Conversion

Adam P. Cohn, William R. Erwin, Keith Share, Landon Oakes, Andrew S. Westover, Rachel E. Carter, Rizia Bardhan, Cary L. Pint

Research output: Contribution to journal › Article › peer-review

147 Scopus citations

Abstract

We demonstrate a simple wafer-scale process by which an individual silicon wafer can be processed into a multifunctional platform where one side is adapted to replace platinum and enable triiodide reduction in a dye-sensitized solar cell and the other side provides on-board charge storage as an electrochemical supercapacitor. This builds upon electrochemical fabrication of dual-sided porous silicon and subsequent carbon surface passivation for silicon electrochemical stability. The utilization of this silicon multifunctional platform as a combined energy storage and conversion system yields a total device efficiency of 2.1%, where the high frequency discharge capability of the integrated supercapacitor gives promise for dynamic load-leveling operations to overcome current and voltage fluctuations during solar energy harvesting.

Original language	English
Pages (from-to)	2727-2731
Number of pages	5
Journal	Nano Letters
Volume	15
Issue number	4
DOIs	https://doi.org/10.1021/acs.nanolett.5b00563
State	Published - Apr 8 2015
Externally published	Yes

Keywords

Solar supercapacitor
dye-sensitized solar cell
energy storage
photocapacitor
polymer electrolytes
porous silicon
supercapacitor

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10.1021/acs.nanolett.5b00563

Cite this

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title = "All Silicon Electrode Photocapacitor for Integrated Energy Storage and Conversion",

abstract = "We demonstrate a simple wafer-scale process by which an individual silicon wafer can be processed into a multifunctional platform where one side is adapted to replace platinum and enable triiodide reduction in a dye-sensitized solar cell and the other side provides on-board charge storage as an electrochemical supercapacitor. This builds upon electrochemical fabrication of dual-sided porous silicon and subsequent carbon surface passivation for silicon electrochemical stability. The utilization of this silicon multifunctional platform as a combined energy storage and conversion system yields a total device efficiency of 2.1\%, where the high frequency discharge capability of the integrated supercapacitor gives promise for dynamic load-leveling operations to overcome current and voltage fluctuations during solar energy harvesting.",

keywords = "Solar supercapacitor, dye-sensitized solar cell, energy storage, photocapacitor, polymer electrolytes, porous silicon, supercapacitor",

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doi = "10.1021/acs.nanolett.5b00563",

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T1 - All Silicon Electrode Photocapacitor for Integrated Energy Storage and Conversion

AU - Cohn, Adam P.

AU - Erwin, William R.

AU - Share, Keith

AU - Oakes, Landon

AU - Westover, Andrew S.

AU - Carter, Rachel E.

AU - Bardhan, Rizia

AU - Pint, Cary L.

PY - 2015/4/8

Y1 - 2015/4/8

N2 - We demonstrate a simple wafer-scale process by which an individual silicon wafer can be processed into a multifunctional platform where one side is adapted to replace platinum and enable triiodide reduction in a dye-sensitized solar cell and the other side provides on-board charge storage as an electrochemical supercapacitor. This builds upon electrochemical fabrication of dual-sided porous silicon and subsequent carbon surface passivation for silicon electrochemical stability. The utilization of this silicon multifunctional platform as a combined energy storage and conversion system yields a total device efficiency of 2.1%, where the high frequency discharge capability of the integrated supercapacitor gives promise for dynamic load-leveling operations to overcome current and voltage fluctuations during solar energy harvesting.

AB - We demonstrate a simple wafer-scale process by which an individual silicon wafer can be processed into a multifunctional platform where one side is adapted to replace platinum and enable triiodide reduction in a dye-sensitized solar cell and the other side provides on-board charge storage as an electrochemical supercapacitor. This builds upon electrochemical fabrication of dual-sided porous silicon and subsequent carbon surface passivation for silicon electrochemical stability. The utilization of this silicon multifunctional platform as a combined energy storage and conversion system yields a total device efficiency of 2.1%, where the high frequency discharge capability of the integrated supercapacitor gives promise for dynamic load-leveling operations to overcome current and voltage fluctuations during solar energy harvesting.

KW - Solar supercapacitor

KW - dye-sensitized solar cell

KW - energy storage

KW - photocapacitor

KW - polymer electrolytes

KW - porous silicon

KW - supercapacitor

UR - https://www.scopus.com/pages/publications/84926640938

U2 - 10.1021/acs.nanolett.5b00563

DO - 10.1021/acs.nanolett.5b00563

M3 - Article

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SP - 2727

EP - 2731

JO - Nano Letters

JF - Nano Letters

IS - 4

ER -

All Silicon Electrode Photocapacitor for Integrated Energy Storage and Conversion

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Keywords

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