Efficiency Enhancement of Silicon Heterojunction Solar Cells via Photon Management Using Graphene Quantum Dot as Downconverters

Meng-Lin Tsai; Wei-Chen Tu; Libin Tang; Tzu-Chiao Wei; Wan-Rou Wei; Shu Ping Lau; Lih-Juann Chen; Jr-Hau He

doi:10.1021/acs.nanolett.5b03814

Efficiency Enhancement of Silicon Heterojunction Solar Cells via Photon Management Using Graphene Quantum Dot as Downconverters

Meng-Lin Tsai, Wei-Chen Tu, Libin Tang, Tzu-Chiao Wei, Wan-Rou Wei, Shu Ping Lau, Lih-Juann Chen, Jr-Hau He

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

116 Scopus citations

Abstract

By employing graphene quantum dots (GQDs), we have achieved a high efficiency of 16.55% in n-type Si heterojunction solar cells. The efficiency enhancement is based on the photon downconversion phenomenon of GQDs to make more photons absorbed in the depletion region for effective carrier separation, leading to the enhanced photovoltaic effect. The short circuit current and the fill factor are increased from 35.31 to 37.47 mA/cm2 and 70.29% to 72.51%, respectively. The work demonstrated here holds the promise for incorporating graphene-based materials in commercially available solar devices for developing ultra-high efficiency photovoltaic cells in the future.

Original language	English (US)
Pages (from-to)	309-313
Number of pages	5
Journal	Nano Letters
Volume	16
Issue number	1
DOIs	https://doi.org/10.1021/acs.nanolett.5b03814
State	Published - Dec 28 2015

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KAUST Repository Item: Exported on 2020-10-01

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10.1021/acs.nanolett.5b03814

https://repository.kaust.edu.sa/bitstream/10754/592610/1/acs2Enanolett2E5b03814.pdf

Cite this

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title = "Efficiency Enhancement of Silicon Heterojunction Solar Cells via Photon Management Using Graphene Quantum Dot as Downconverters",

abstract = "By employing graphene quantum dots (GQDs), we have achieved a high efficiency of 16.55% in n-type Si heterojunction solar cells. The efficiency enhancement is based on the photon downconversion phenomenon of GQDs to make more photons absorbed in the depletion region for effective carrier separation, leading to the enhanced photovoltaic effect. The short circuit current and the fill factor are increased from 35.31 to 37.47 mA/cm2 and 70.29% to 72.51%, respectively. The work demonstrated here holds the promise for incorporating graphene-based materials in commercially available solar devices for developing ultra-high efficiency photovoltaic cells in the future.",

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doi = "10.1021/acs.nanolett.5b03814",

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AU - Tsai, Meng-Lin

AU - Tu, Wei-Chen

AU - Tang, Libin

AU - Wei, Tzu-Chiao

AU - Wei, Wan-Rou

AU - Lau, Shu Ping

AU - Chen, Lih-Juann

AU - He, Jr-Hau

N1 - KAUST Repository Item: Exported on 2020-10-01

PY - 2015/12/28

Y1 - 2015/12/28

N2 - By employing graphene quantum dots (GQDs), we have achieved a high efficiency of 16.55% in n-type Si heterojunction solar cells. The efficiency enhancement is based on the photon downconversion phenomenon of GQDs to make more photons absorbed in the depletion region for effective carrier separation, leading to the enhanced photovoltaic effect. The short circuit current and the fill factor are increased from 35.31 to 37.47 mA/cm2 and 70.29% to 72.51%, respectively. The work demonstrated here holds the promise for incorporating graphene-based materials in commercially available solar devices for developing ultra-high efficiency photovoltaic cells in the future.

AB - By employing graphene quantum dots (GQDs), we have achieved a high efficiency of 16.55% in n-type Si heterojunction solar cells. The efficiency enhancement is based on the photon downconversion phenomenon of GQDs to make more photons absorbed in the depletion region for effective carrier separation, leading to the enhanced photovoltaic effect. The short circuit current and the fill factor are increased from 35.31 to 37.47 mA/cm2 and 70.29% to 72.51%, respectively. The work demonstrated here holds the promise for incorporating graphene-based materials in commercially available solar devices for developing ultra-high efficiency photovoltaic cells in the future.

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UR - http://pubs.acs.org/doi/10.1021/acs.nanolett.5b03814

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JO - Nano Letters

JF - Nano Letters

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ER -

Efficiency Enhancement of Silicon Heterojunction Solar Cells via Photon Management Using Graphene Quantum Dot as Downconverters

Abstract

Bibliographical note

UN SDGs

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