Efficiency enhancement of graphene/silicon-pillar-array solar cells by HNO3 and PEDOT-PSS

Tingting Feng; Dan Xie; Yuxuan Lin; Haiming Zhao; Yu Chen; He Tian; Tianling Ren; Xiao Li; Zhen Li; Kunlin Wang; Dehai Wu; Hongwei Zhu

doi:10.1039/c2nr12001a

Efficiency enhancement of graphene/silicon-pillar-array solar cells by HNO₃ and PEDOT-PSS

Tingting Feng, Dan Xie, Yuxuan Lin, Haiming Zhao, Yu Chen, He Tian, Tianling Ren, Xiao Li, Zhen Li, Kunlin Wang, Dehai Wu, Hongwei Zhu

Tsinghua University

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

87 Scopus citations

Abstract

A single-layer graphene film was grown on copper foil by chemical vapor deposition and transferred onto a silicon-pillar-array (SPA) substrate to make a Schottky junction solar cell. The SPA substrate was specifically designed to suppress reflectance and enhance light absorption. The energy conversion efficiency of the prepared graphene/SPA solar cells achieved a maximum of 2.90% with a junction area of 0.09 cm². HNO₃ was employed to dope the graphene in the solar cells, and the time dependence of HNO₃ treatment on the cell performance was studied. Poly(3,4-ethylenedioxythiophene) polystyrenesulfonic acid (PEDOT-PSS) was also introduced in graphene/SPA solar cells by spin coating on top of the graphene film, and its modification on the cell performance was characterized. The results show that both HNO₃ and the PEDOT-PSS film could enhance the energy conversion efficiency of graphene/SPA solar cells.

Original language	English
Pages (from-to)	2130-2133
Number of pages	4
Journal	Nanoscale
Volume	4
Issue number	6
DOIs	https://doi.org/10.1039/c2nr12001a
State	Published - 21 Mar 2012
Externally published	Yes

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title = "Efficiency enhancement of graphene/silicon-pillar-array solar cells by HNO3 and PEDOT-PSS",

abstract = "A single-layer graphene film was grown on copper foil by chemical vapor deposition and transferred onto a silicon-pillar-array (SPA) substrate to make a Schottky junction solar cell. The SPA substrate was specifically designed to suppress reflectance and enhance light absorption. The energy conversion efficiency of the prepared graphene/SPA solar cells achieved a maximum of 2.90% with a junction area of 0.09 cm2. HNO3 was employed to dope the graphene in the solar cells, and the time dependence of HNO3 treatment on the cell performance was studied. Poly(3,4-ethylenedioxythiophene) polystyrenesulfonic acid (PEDOT-PSS) was also introduced in graphene/SPA solar cells by spin coating on top of the graphene film, and its modification on the cell performance was characterized. The results show that both HNO3 and the PEDOT-PSS film could enhance the energy conversion efficiency of graphene/SPA solar cells.",

author = "Tingting Feng and Dan Xie and Yuxuan Lin and Haiming Zhao and Yu Chen and He Tian and Tianling Ren and Xiao Li and Zhen Li and Kunlin Wang and Dehai Wu and Hongwei Zhu",

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doi = "10.1039/c2nr12001a",

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T1 - Efficiency enhancement of graphene/silicon-pillar-array solar cells by HNO3 and PEDOT-PSS

AU - Feng, Tingting

AU - Xie, Dan

AU - Lin, Yuxuan

AU - Zhao, Haiming

AU - Chen, Yu

AU - Tian, He

AU - Ren, Tianling

AU - Li, Xiao

AU - Li, Zhen

AU - Wang, Kunlin

AU - Wu, Dehai

AU - Zhu, Hongwei

PY - 2012/3/21

Y1 - 2012/3/21

N2 - A single-layer graphene film was grown on copper foil by chemical vapor deposition and transferred onto a silicon-pillar-array (SPA) substrate to make a Schottky junction solar cell. The SPA substrate was specifically designed to suppress reflectance and enhance light absorption. The energy conversion efficiency of the prepared graphene/SPA solar cells achieved a maximum of 2.90% with a junction area of 0.09 cm2. HNO3 was employed to dope the graphene in the solar cells, and the time dependence of HNO3 treatment on the cell performance was studied. Poly(3,4-ethylenedioxythiophene) polystyrenesulfonic acid (PEDOT-PSS) was also introduced in graphene/SPA solar cells by spin coating on top of the graphene film, and its modification on the cell performance was characterized. The results show that both HNO3 and the PEDOT-PSS film could enhance the energy conversion efficiency of graphene/SPA solar cells.

AB - A single-layer graphene film was grown on copper foil by chemical vapor deposition and transferred onto a silicon-pillar-array (SPA) substrate to make a Schottky junction solar cell. The SPA substrate was specifically designed to suppress reflectance and enhance light absorption. The energy conversion efficiency of the prepared graphene/SPA solar cells achieved a maximum of 2.90% with a junction area of 0.09 cm2. HNO3 was employed to dope the graphene in the solar cells, and the time dependence of HNO3 treatment on the cell performance was studied. Poly(3,4-ethylenedioxythiophene) polystyrenesulfonic acid (PEDOT-PSS) was also introduced in graphene/SPA solar cells by spin coating on top of the graphene film, and its modification on the cell performance was characterized. The results show that both HNO3 and the PEDOT-PSS film could enhance the energy conversion efficiency of graphene/SPA solar cells.

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SN - 2040-3364

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JO - Nanoscale

JF - Nanoscale

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ER -

Efficiency enhancement of graphene/silicon-pillar-array solar cells by HNO₃ and PEDOT-PSS

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