Depleted-heterojunction colloidal quantum dot photovoltaics employing low-cost electrical contacts

Ratan Debnath; Mark T. Greiner; Illan J. Kramer; Armin Fischer; Jiang Tang; D. Aaron R. Barkhouse; Xihua Wang; Larissa Levina; Zheng-Hong Lu; Edward H. Sargent

doi:10.1063/1.3463037

Depleted-heterojunction colloidal quantum dot photovoltaics employing low-cost electrical contacts

Ratan Debnath, Mark T. Greiner, Illan J. Kramer, Armin Fischer, Jiang Tang, D. Aaron R. Barkhouse, Xihua Wang, Larissa Levina, Zheng-Hong Lu, Edward H. Sargent

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

42 Scopus citations

Abstract

With an aim to reduce the cost of depleted-heterojunction colloidal quantum dot solar cells, we describe herein a strategy that replaces costly Au with a low-cost Ni-based Ohmic contact. The resultant devices achieve 3.5% Air Mass 1.5 power conversion efficiency. Only by incorporating a 1.2-nm-thick LiF layer between the PbS quantum dot film and Ni, we were able to prevent undesired reactions and degradation at the metal-semiconductor interface. © 2010 American Institute of Physics.

Original language	English (US)
Pages (from-to)	023109
Journal	Applied Physics Letters
Volume	97
Issue number	2
DOIs	https://doi.org/10.1063/1.3463037
State	Published - Jul 15 2010
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): KUS-I1-009-21
Acknowledgements: R. Debnath would like to acknowledge the financial support through e8 scholarship. This publication was based on work supported in part by Award No. KUS-I1-009-21, made by King Abdullah University of Science and Technology (KAUST).
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

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title = "Depleted-heterojunction colloidal quantum dot photovoltaics employing low-cost electrical contacts",

abstract = "With an aim to reduce the cost of depleted-heterojunction colloidal quantum dot solar cells, we describe herein a strategy that replaces costly Au with a low-cost Ni-based Ohmic contact. The resultant devices achieve 3.5% Air Mass 1.5 power conversion efficiency. Only by incorporating a 1.2-nm-thick LiF layer between the PbS quantum dot film and Ni, we were able to prevent undesired reactions and degradation at the metal-semiconductor interface. {\textcopyright} 2010 American Institute of Physics.",

author = "Ratan Debnath and Greiner, {Mark T.} and Kramer, {Illan J.} and Armin Fischer and Jiang Tang and Barkhouse, {D. Aaron R.} and Xihua Wang and Larissa Levina and Zheng-Hong Lu and Sargent, {Edward H.}",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): KUS-I1-009-21 Acknowledgements: R. Debnath would like to acknowledge the financial support through e8 scholarship. This publication was based on work supported in part by Award No. KUS-I1-009-21, made by King Abdullah University of Science and Technology (KAUST). This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

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T1 - Depleted-heterojunction colloidal quantum dot photovoltaics employing low-cost electrical contacts

AU - Debnath, Ratan

AU - Greiner, Mark T.

AU - Kramer, Illan J.

AU - Fischer, Armin

AU - Tang, Jiang

AU - Barkhouse, D. Aaron R.

AU - Wang, Xihua

AU - Levina, Larissa

AU - Lu, Zheng-Hong

AU - Sargent, Edward H.

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): KUS-I1-009-21 Acknowledgements: R. Debnath would like to acknowledge the financial support through e8 scholarship. This publication was based on work supported in part by Award No. KUS-I1-009-21, made by King Abdullah University of Science and Technology (KAUST). This publication acknowledges KAUST support, but has no KAUST affiliated authors.

PY - 2010/7/15

Y1 - 2010/7/15

N2 - With an aim to reduce the cost of depleted-heterojunction colloidal quantum dot solar cells, we describe herein a strategy that replaces costly Au with a low-cost Ni-based Ohmic contact. The resultant devices achieve 3.5% Air Mass 1.5 power conversion efficiency. Only by incorporating a 1.2-nm-thick LiF layer between the PbS quantum dot film and Ni, we were able to prevent undesired reactions and degradation at the metal-semiconductor interface. © 2010 American Institute of Physics.

AB - With an aim to reduce the cost of depleted-heterojunction colloidal quantum dot solar cells, we describe herein a strategy that replaces costly Au with a low-cost Ni-based Ohmic contact. The resultant devices achieve 3.5% Air Mass 1.5 power conversion efficiency. Only by incorporating a 1.2-nm-thick LiF layer between the PbS quantum dot film and Ni, we were able to prevent undesired reactions and degradation at the metal-semiconductor interface. © 2010 American Institute of Physics.

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UR - http://aip.scitation.org/doi/10.1063/1.3463037

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JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 2

ER -

Depleted-heterojunction colloidal quantum dot photovoltaics employing low-cost electrical contacts

Abstract

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