Degradation of CIGS solar cells due to the migration of alkali-elements

Mirjam Theelen; Nicolas Barreau; Vincent Hans; Henk Steijvers; Zeger Vroon; Miro Zeman

doi:10.1109/PVSC.2015.7355776

Degradation of CIGS solar cells due to the migration of alkali-elements

Mirjam Theelen, Nicolas Barreau, Vincent Hans, Henk Steijvers, Zeger Vroon, Miro Zeman

Electrical Sustainable Energy

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

18 Citations (Scopus)

Abstract

Non-encapsulated CIGS solar cells with different contents of sodium (Na) and potassium (K) were simultaneously exposed to damp heat and illumination. The solar cells with higher alkali (Na, K) content exhibited higher initial conversion efficiencies, but degraded severely within 100 hours, while samples with a lower alkali content retained their efficiency longer. The degradation was likely caused by the migration of alkali atoms, leading to shunting of the solar cells and the formation of alkali rich spots.

Original language	English
Title of host publication	Proceedings of the 42nd Photovoltaic Specialist Conference, PVSC 2015
Editors	S.A. Ringel
Place of Publication	Piscataway, NJ
Publisher	IEEE
Pages	1-6
Number of pages	6
ISBN (Electronic)	978-1-4799-7944-8
DOIs	https://doi.org/10.1109/PVSC.2015.7355776
Publication status	Published - Jun 2015
Event	PVSC 2015: 42nd IEEE Photovoltaic Specialist Conference - New Orleans, LA, United States Duration: 14 Jun 2015 → 19 Jun 2015 Conference number: 42

Conference

Conference	PVSC 2015
Country/Territory	United States
City	New Orleans, LA
Period	14/06/15 → 19/06/15

Keywords

CIGS
damp heat
illumination
molybdenum
potassium
reliability
sodium
solar cell

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10.1109/PVSC.2015.7355776

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title = "Degradation of CIGS solar cells due to the migration of alkali-elements",

abstract = "Non-encapsulated CIGS solar cells with different contents of sodium (Na) and potassium (K) were simultaneously exposed to damp heat and illumination. The solar cells with higher alkali (Na, K) content exhibited higher initial conversion efficiencies, but degraded severely within 100 hours, while samples with a lower alkali content retained their efficiency longer. The degradation was likely caused by the migration of alkali atoms, leading to shunting of the solar cells and the formation of alkali rich spots.",

keywords = "CIGS, damp heat, illumination, molybdenum, potassium, reliability, sodium, solar cell",

author = "Mirjam Theelen and Nicolas Barreau and Vincent Hans and Henk Steijvers and Zeger Vroon and Miro Zeman",

year = "2015",

month = jun,

doi = "10.1109/PVSC.2015.7355776",

language = "English",

pages = "1--6",

editor = "S.A. Ringel",

booktitle = "Proceedings of the 42nd Photovoltaic Specialist Conference, PVSC 2015",

publisher = "IEEE",

address = "United States",

note = "PVSC 2015 : 42nd IEEE Photovoltaic Specialist Conference ; Conference date: 14-06-2015 Through 19-06-2015",

}

Theelen, M, Barreau, N, Hans, V, Steijvers, H, Vroon, Z & Zeman, M 2015, Degradation of CIGS solar cells due to the migration of alkali-elements. in SA Ringel (ed.), Proceedings of the 42nd Photovoltaic Specialist Conference, PVSC 2015., 7355776, IEEE, Piscataway, NJ, pp. 1-6, PVSC 2015, New Orleans, LA, United States, 14/06/15. https://doi.org/10.1109/PVSC.2015.7355776

Degradation of CIGS solar cells due to the migration of alkali-elements. / Theelen, Mirjam; Barreau, Nicolas; Hans, Vincent et al.
Proceedings of the 42nd Photovoltaic Specialist Conference, PVSC 2015. ed. / S.A. Ringel. Piscataway, NJ: IEEE, 2015. p. 1-6 7355776.

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Degradation of CIGS solar cells due to the migration of alkali-elements

AU - Theelen, Mirjam

AU - Barreau, Nicolas

AU - Hans, Vincent

AU - Steijvers, Henk

AU - Vroon, Zeger

AU - Zeman, Miro

N1 - Conference code: 42

PY - 2015/6

Y1 - 2015/6

N2 - Non-encapsulated CIGS solar cells with different contents of sodium (Na) and potassium (K) were simultaneously exposed to damp heat and illumination. The solar cells with higher alkali (Na, K) content exhibited higher initial conversion efficiencies, but degraded severely within 100 hours, while samples with a lower alkali content retained their efficiency longer. The degradation was likely caused by the migration of alkali atoms, leading to shunting of the solar cells and the formation of alkali rich spots.

AB - Non-encapsulated CIGS solar cells with different contents of sodium (Na) and potassium (K) were simultaneously exposed to damp heat and illumination. The solar cells with higher alkali (Na, K) content exhibited higher initial conversion efficiencies, but degraded severely within 100 hours, while samples with a lower alkali content retained their efficiency longer. The degradation was likely caused by the migration of alkali atoms, leading to shunting of the solar cells and the formation of alkali rich spots.

KW - CIGS

KW - damp heat

KW - illumination

KW - molybdenum

KW - potassium

KW - reliability

KW - sodium

KW - solar cell

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M3 - Conference contribution

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EP - 6

BT - Proceedings of the 42nd Photovoltaic Specialist Conference, PVSC 2015

A2 - Ringel, S.A.

PB - IEEE

CY - Piscataway, NJ

T2 - PVSC 2015

Y2 - 14 June 2015 through 19 June 2015

ER -

Degradation of CIGS solar cells due to the migration of alkali-elements

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Keywords

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