Evidence of Reversible Oxidation at CuInSe2 Grain Boundaries

Harvey Guthrey; Diego Colombara; Jean-Nicolas Audinot; Damien Aureau; Finn Babbe; Phillip Dale; Hossam Anzeery; Nicoleta Nicoara; Sascha Sadewasser; Deepanjan Sharma; Nathalie Valle; Tom Wirtz; Anastasiya Zelenina

doi:10.1109/PVSC40753.2019.8981351

Evidence of Reversible Oxidation at CuInSe2 Grain Boundaries

Harvey Guthrey, Diego Colombara, Jean-Nicolas Audinot, Damien Aureau, Finn Babbe, Phillip Dale, Hossam Anzeery, Nicoleta Nicoara, Sascha Sadewasser, Deepanjan Sharma, Nathalie Valle, Tom Wirtz, Anastasiya Zelenina

Materials Science

Research output: Contribution to conference › Paper › peer-review

1 Scopus Citations

Abstract

Effects related to alkali metal doping and grain boundaries have puzzled the chalcopyrite photovoltaics community for a long time. This study is the first to report reversible oxidation of grain boundaries in CuInSe2 thin films. The phenomenon is observed in sodium-doped films, but not in undoped ones. Cathodoluminescence imaging, secondary ion mass spectrometry and Kelvin probe force microscopy analyses are performed on CuInSe2 thin films before and after exposure to vacuum. The findings suggest the existence of yet unidentified solid-gas equilibria. Resolving the nature of such reactions will provide new insights into the mechanism of alkali metal doping and passivation in chalcopyrite solar cells.

Original language	American English
Pages	182-184
Number of pages	3
DOIs	https://doi.org/10.1109/PVSC40753.2019.8981351 https://doi.org/10.1109/PVSC40753.2019.8981351
State	Published - Jun 2019
Event	46th IEEE Photovoltaic Specialists Conference, PVSC 2019 - Chicago, United States Duration: 16 Jun 2019 → 21 Jun 2019

Conference

Conference	46th IEEE Photovoltaic Specialists Conference, PVSC 2019
Country/Territory	United States
City	Chicago
Period	16/06/19 → 21/06/19

Bibliographical note

Publisher Copyright:
© 2019 IEEE.

NREL Publication Number

NREL/CP-5K00-76283

Keywords

Alkali PDT
CIGS
oxygenation
Solar energy

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Guthrey, H., Colombara, D., Audinot, J.-N., Aureau, D., Babbe, F., Dale, P., Anzeery, H., Nicoara, N., Sadewasser, S., Sharma, D., Valle, N., Wirtz, T., & Zelenina, A. (2019). Evidence of Reversible Oxidation at CuInSe2 Grain Boundaries. 182-184. Paper presented at 46th IEEE Photovoltaic Specialists Conference, PVSC 2019, Chicago, United States. https://doi.org/10.1109/PVSC40753.2019.8981351, https://doi.org/10.1109/PVSC40753.2019.8981351

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abstract = "Effects related to alkali metal doping and grain boundaries have puzzled the chalcopyrite photovoltaics community for a long time. This study is the first to report reversible oxidation of grain boundaries in CuInSe2 thin films. The phenomenon is observed in sodium-doped films, but not in undoped ones. Cathodoluminescence imaging, secondary ion mass spectrometry and Kelvin probe force microscopy analyses are performed on CuInSe2 thin films before and after exposure to vacuum. The findings suggest the existence of yet unidentified solid-gas equilibria. Resolving the nature of such reactions will provide new insights into the mechanism of alkali metal doping and passivation in chalcopyrite solar cells.",

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author = "Harvey Guthrey and Diego Colombara and Jean-Nicolas Audinot and Damien Aureau and Finn Babbe and Phillip Dale and Hossam Anzeery and Nicoleta Nicoara and Sascha Sadewasser and Deepanjan Sharma and Nathalie Valle and Tom Wirtz and Anastasiya Zelenina",

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doi = "10.1109/PVSC40753.2019.8981351",

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Guthrey, H, Colombara, D, Audinot, J-N, Aureau, D, Babbe, F, Dale, P, Anzeery, H, Nicoara, N, Sadewasser, S, Sharma, D, Valle, N, Wirtz, T & Zelenina, A 2019, 'Evidence of Reversible Oxidation at CuInSe2 Grain Boundaries', Paper presented at 46th IEEE Photovoltaic Specialists Conference, PVSC 2019, Chicago, United States, 16/06/19 - 21/06/19 pp. 182-184. https://doi.org/10.1109/PVSC40753.2019.8981351, https://doi.org/10.1109/PVSC40753.2019.8981351

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AU - Guthrey, Harvey

AU - Colombara, Diego

AU - Audinot, Jean-Nicolas

AU - Aureau, Damien

AU - Babbe, Finn

AU - Dale, Phillip

AU - Anzeery, Hossam

AU - Nicoara, Nicoleta

AU - Sadewasser, Sascha

AU - Sharma, Deepanjan

AU - Valle, Nathalie

AU - Wirtz, Tom

AU - Zelenina, Anastasiya

PY - 2019/6

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N2 - Effects related to alkali metal doping and grain boundaries have puzzled the chalcopyrite photovoltaics community for a long time. This study is the first to report reversible oxidation of grain boundaries in CuInSe2 thin films. The phenomenon is observed in sodium-doped films, but not in undoped ones. Cathodoluminescence imaging, secondary ion mass spectrometry and Kelvin probe force microscopy analyses are performed on CuInSe2 thin films before and after exposure to vacuum. The findings suggest the existence of yet unidentified solid-gas equilibria. Resolving the nature of such reactions will provide new insights into the mechanism of alkali metal doping and passivation in chalcopyrite solar cells.

AB - Effects related to alkali metal doping and grain boundaries have puzzled the chalcopyrite photovoltaics community for a long time. This study is the first to report reversible oxidation of grain boundaries in CuInSe2 thin films. The phenomenon is observed in sodium-doped films, but not in undoped ones. Cathodoluminescence imaging, secondary ion mass spectrometry and Kelvin probe force microscopy analyses are performed on CuInSe2 thin films before and after exposure to vacuum. The findings suggest the existence of yet unidentified solid-gas equilibria. Resolving the nature of such reactions will provide new insights into the mechanism of alkali metal doping and passivation in chalcopyrite solar cells.

KW - Alkali PDT

KW - CIGS

KW - oxygenation

KW - Solar energy

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DO - 10.1109/PVSC40753.2019.8981351

M3 - Paper

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EP - 184

T2 - 46th IEEE Photovoltaic Specialists Conference, PVSC 2019

Y2 - 16 June 2019 through 21 June 2019

ER -

Evidence of Reversible Oxidation at CuInSe2 Grain Boundaries

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Keywords

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