Performance optimization in gate-tunable Schottky junction solar cells with a light transparent and electric-field permeable graphene mesh on n-Si

Su Han Kim; Jae Hyung Lee; Jin Sung Park; Min Soo Hwang; Hong Gyu Park; Kyoung Jin Choi; Won Il Park

doi:10.1039/c6tc05502h

Performance optimization in gate-tunable Schottky junction solar cells with a light transparent and electric-field permeable graphene mesh on n-Si

Su Han Kim, Jae Hyung Lee, Jin Sung Park, Min Soo Hwang, Hong Gyu Park, Kyoung Jin Choi, Won Il Park

Department of Physics

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

16 Citations (Scopus)

Abstract

Gate-tunable Schottky junction solar cells (SJSCs) based on graphene and graphene mesh electrodes on n-type Si are fabricated and the effect of the external gate voltage (V_g) on the photovoltaic characteristics is investigated. The power conversion efficiencies (PCEs) of both devices continuously increase with increasing absolute values of V_g. Importantly, despite the slightly lower PCE values at V_g = 0 V, the graphene mesh on Si SJSC shows more rapid enhancement of PCE values, from 5.7% to 8.1%, with V_g varied from 0 V to −1 V. The finite element simulation highlights the benefits of the graphene mesh electrodes from the non-uniform and dynamic modulation of potential distributions driven correlatively by a work function change in the graphene regions and electric-field penetration through the hole regions.

Original language	English
Pages (from-to)	3183-3187
Number of pages	5
Journal	Journal of Materials Chemistry C
Volume	5
Issue number	12
DOIs	https://doi.org/10.1039/c6tc05502h
Publication status	Published - 2017

ASJC Scopus subject areas

Chemistry(all)
Materials Chemistry

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1039/c6tc05502h

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@article{fbadd4a961394d31993672eed137582b,

title = "Performance optimization in gate-tunable Schottky junction solar cells with a light transparent and electric-field permeable graphene mesh on n-Si",

abstract = "Gate-tunable Schottky junction solar cells (SJSCs) based on graphene and graphene mesh electrodes on n-type Si are fabricated and the effect of the external gate voltage (Vg) on the photovoltaic characteristics is investigated. The power conversion efficiencies (PCEs) of both devices continuously increase with increasing absolute values of Vg. Importantly, despite the slightly lower PCE values at Vg = 0 V, the graphene mesh on Si SJSC shows more rapid enhancement of PCE values, from 5.7% to 8.1%, with Vg varied from 0 V to −1 V. The finite element simulation highlights the benefits of the graphene mesh electrodes from the non-uniform and dynamic modulation of potential distributions driven correlatively by a work function change in the graphene regions and electric-field penetration through the hole regions.",

author = "Kim, {Su Han} and Lee, {Jae Hyung} and Park, {Jin Sung} and Hwang, {Min Soo} and Park, {Hong Gyu} and Choi, {Kyoung Jin} and Park, {Won Il}",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (MSIP) of Korea (no. 2015R1A2A2A11001426, no. 2016K1A4A3914691, no. 2016K1A3A1A32913360). H.-G. P. acknowledges support for this work from the NRF grant funded by the Korean government (MSIP) (no. 2009-0081565). Publisher Copyright: {\textcopyright} The Royal Society of Chemistry.",

year = "2017",

doi = "10.1039/c6tc05502h",

language = "English",

volume = "5",

pages = "3183--3187",

journal = "Journal of Materials Chemistry C",

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publisher = "Royal Society of Chemistry",

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TY - JOUR

T1 - Performance optimization in gate-tunable Schottky junction solar cells with a light transparent and electric-field permeable graphene mesh on n-Si

AU - Kim, Su Han

AU - Lee, Jae Hyung

AU - Park, Jin Sung

AU - Hwang, Min Soo

AU - Park, Hong Gyu

AU - Choi, Kyoung Jin

AU - Park, Won Il

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (MSIP) of Korea (no. 2015R1A2A2A11001426, no. 2016K1A4A3914691, no. 2016K1A3A1A32913360). H.-G. P. acknowledges support for this work from the NRF grant funded by the Korean government (MSIP) (no. 2009-0081565). Publisher Copyright: © The Royal Society of Chemistry.

PY - 2017

Y1 - 2017

N2 - Gate-tunable Schottky junction solar cells (SJSCs) based on graphene and graphene mesh electrodes on n-type Si are fabricated and the effect of the external gate voltage (Vg) on the photovoltaic characteristics is investigated. The power conversion efficiencies (PCEs) of both devices continuously increase with increasing absolute values of Vg. Importantly, despite the slightly lower PCE values at Vg = 0 V, the graphene mesh on Si SJSC shows more rapid enhancement of PCE values, from 5.7% to 8.1%, with Vg varied from 0 V to −1 V. The finite element simulation highlights the benefits of the graphene mesh electrodes from the non-uniform and dynamic modulation of potential distributions driven correlatively by a work function change in the graphene regions and electric-field penetration through the hole regions.

AB - Gate-tunable Schottky junction solar cells (SJSCs) based on graphene and graphene mesh electrodes on n-type Si are fabricated and the effect of the external gate voltage (Vg) on the photovoltaic characteristics is investigated. The power conversion efficiencies (PCEs) of both devices continuously increase with increasing absolute values of Vg. Importantly, despite the slightly lower PCE values at Vg = 0 V, the graphene mesh on Si SJSC shows more rapid enhancement of PCE values, from 5.7% to 8.1%, with Vg varied from 0 V to −1 V. The finite element simulation highlights the benefits of the graphene mesh electrodes from the non-uniform and dynamic modulation of potential distributions driven correlatively by a work function change in the graphene regions and electric-field penetration through the hole regions.

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Performance optimization in gate-tunable Schottky junction solar cells with a light transparent and electric-field permeable graphene mesh on n-Si

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