In situ investigation of wet chemical processes for chalcopyrite solar cells by L-edge XAS under ambient conditions

Stefanie M. Greil; Iver Lauermann; Ahmed Ennaoui; Timo Kropp; Kathrin M. Lange; Matthieu Weber; Emad F. Aziz

doi:10.1016/j.nimb.2009.07.018

In situ investigation of wet chemical processes for chalcopyrite solar cells by L-edge XAS under ambient conditions

Stefanie M. Greil, Iver Lauermann, Ahmed Ennaoui, Timo Kropp, Kathrin M. Lange, Matthieu Weber, Emad F. Aziz

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

4 Scopus citations

Abstract

Two instrumental setups for in situ soft X-ray absorption spectroscopy in liquid systems are demonstrated in this work. One for investigating chemical reactions in solutions and a new one for the solid component of a liquid / (as in both / absorber) solid interface. We used these setups for investigating two production processes for chalcopyrite solar cells under ambient conditions, probing the L-edge of Zn and Cu. The first one is a flow cell with a silicon nitride membrane to study the chemical bath deposition process for Cd-free buffer layers. Examining the electronic structure of involved Zn complexes allows to determine the exact reaction mechanism taking place during this process. The second setup is a rotating disk for investigating the bath/absorber interface upon the etching process of superficial binary copper compounds of the absorber as a function of time. The time resolution of the chemical reaction demonstrated in this study ranges from the second to minute time scale.

Original language	English
Pages (from-to)	263-267
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	268
Issue number	3-4
DOIs	https://doi.org/10.1016/j.nimb.2009.07.018
State	Published - Feb 2010
Externally published	Yes

Keywords

Ambient condition
Cd-free buffer layer
Chalcopyrite solar cells
Soft XAS
Time resolved

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10.1016/j.nimb.2009.07.018

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Greil, S. M., Lauermann, I., Ennaoui, A., Kropp, T., Lange, K. M., Weber, M., & Aziz, E. F. (2010). In situ investigation of wet chemical processes for chalcopyrite solar cells by L-edge XAS under ambient conditions. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 268(3-4), 263-267. https://doi.org/10.1016/j.nimb.2009.07.018

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title = "In situ investigation of wet chemical processes for chalcopyrite solar cells by L-edge XAS under ambient conditions",

abstract = "Two instrumental setups for in situ soft X-ray absorption spectroscopy in liquid systems are demonstrated in this work. One for investigating chemical reactions in solutions and a new one for the solid component of a liquid / (as in both / absorber) solid interface. We used these setups for investigating two production processes for chalcopyrite solar cells under ambient conditions, probing the L-edge of Zn and Cu. The first one is a flow cell with a silicon nitride membrane to study the chemical bath deposition process for Cd-free buffer layers. Examining the electronic structure of involved Zn complexes allows to determine the exact reaction mechanism taking place during this process. The second setup is a rotating disk for investigating the bath/absorber interface upon the etching process of superficial binary copper compounds of the absorber as a function of time. The time resolution of the chemical reaction demonstrated in this study ranges from the second to minute time scale.",

keywords = "Ambient condition, Cd-free buffer layer, Chalcopyrite solar cells, Soft XAS, Time resolved",

author = "Greil, {Stefanie M.} and Iver Lauermann and Ahmed Ennaoui and Timo Kropp and Lange, {Kathrin M.} and Matthieu Weber and Aziz, {Emad F.}",

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Greil, SM, Lauermann, I, Ennaoui, A, Kropp, T, Lange, KM, Weber, M & Aziz, EF 2010, 'In situ investigation of wet chemical processes for chalcopyrite solar cells by L-edge XAS under ambient conditions', Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, vol. 268, no. 3-4, pp. 263-267. https://doi.org/10.1016/j.nimb.2009.07.018

In situ investigation of wet chemical processes for chalcopyrite solar cells by L-edge XAS under ambient conditions. / Greil, Stefanie M.; Lauermann, Iver; Ennaoui, Ahmed et al.
In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 268, No. 3-4, 02.2010, p. 263-267.

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

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T1 - In situ investigation of wet chemical processes for chalcopyrite solar cells by L-edge XAS under ambient conditions

AU - Greil, Stefanie M.

AU - Lauermann, Iver

AU - Ennaoui, Ahmed

AU - Kropp, Timo

AU - Lange, Kathrin M.

AU - Weber, Matthieu

AU - Aziz, Emad F.

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AB - Two instrumental setups for in situ soft X-ray absorption spectroscopy in liquid systems are demonstrated in this work. One for investigating chemical reactions in solutions and a new one for the solid component of a liquid / (as in both / absorber) solid interface. We used these setups for investigating two production processes for chalcopyrite solar cells under ambient conditions, probing the L-edge of Zn and Cu. The first one is a flow cell with a silicon nitride membrane to study the chemical bath deposition process for Cd-free buffer layers. Examining the electronic structure of involved Zn complexes allows to determine the exact reaction mechanism taking place during this process. The second setup is a rotating disk for investigating the bath/absorber interface upon the etching process of superficial binary copper compounds of the absorber as a function of time. The time resolution of the chemical reaction demonstrated in this study ranges from the second to minute time scale.

KW - Ambient condition

KW - Cd-free buffer layer

KW - Chalcopyrite solar cells

KW - Soft XAS

KW - Time resolved

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DO - 10.1016/j.nimb.2009.07.018

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JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

IS - 3-4

ER -

In situ investigation of wet chemical processes for chalcopyrite solar cells by L-edge XAS under ambient conditions

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Keywords

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