Single and double side textured black silicon require different annealing conditions for optimal passivation with ALD Al2O3

Beniamino Iandolo; Rasmus Schmidt Davidsen; Ole Hansen

doi:10.1109/PVSC.2018.8547760

Single and double side textured black silicon require different annealing conditions for optimal passivation with ALD Al₂O₃

Beniamino Iandolo, Rasmus Schmidt Davidsen, Ole Hansen

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

Black silicon is an attractive surface for solar cells thanks to its intrinsic antireflective properties, however progress in surface passivation is required to exploit its full potential. Here, we present effective minority carrier lifetime measurements on single side textured, double side textured, and flat reference Si surfaces, passivated by AI₂O₃ with subsequent thermal activation. Effective lifetime measurements revealed that the annealing time resulting in highest effective lifetime, and therefore in the lowest surface recombination velocity of the textured surface, is depending on whether the wafers are single or double side textured. It follows that optimization of passivation of black silicon lifetime samples needs to be carried out on samples with texturing on one or both sides, depending on the solar cell architecture of interest.

Original language	English
Title of host publication	2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (wcpec) (a Joint Conference of 45th Ieee Pvsc, 28th Pvsec and 34th Eu Pvsec)
Publisher	IEEE
Publication date	2018
Pages	3105-3107
ISBN (Electronic)	978-1-5386-8529-7
DOIs	https://doi.org/10.1109/PVSC.2018.8547760
Publication status	Published - 2018
Event	7th World Conference on Photovoltaic Energy Conversion - Hilton Waikoloa Village Resort, Waikoloa, United States Duration: 10 Jun 2018 → 15 Jun 2018 Conference number: WCPEC-7

Conference

Conference	7th World Conference on Photovoltaic Energy Conversion
Number	WCPEC-7
Location	Hilton Waikoloa Village Resort
Country/Territory	United States
City	Waikoloa
Period	10/06/2018 → 15/06/2018

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10.1109/PVSC.2018.8547760

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Iandolo, B., Davidsen, R. S., & Hansen, O. (2018). Single and double side textured black silicon require different annealing conditions for optimal passivation with ALD Al₂O₃. In 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (wcpec) (a Joint Conference of 45th Ieee Pvsc, 28th Pvsec and 34th Eu Pvsec) (pp. 3105-3107). IEEE. https://doi.org/10.1109/PVSC.2018.8547760

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abstract = "Black silicon is an attractive surface for solar cells thanks to its intrinsic antireflective properties, however progress in surface passivation is required to exploit its full potential. Here, we present effective minority carrier lifetime measurements on single side textured, double side textured, and flat reference Si surfaces, passivated by AI2O3 with subsequent thermal activation. Effective lifetime measurements revealed that the annealing time resulting in highest effective lifetime, and therefore in the lowest surface recombination velocity of the textured surface, is depending on whether the wafers are single or double side textured. It follows that optimization of passivation of black silicon lifetime samples needs to be carried out on samples with texturing on one or both sides, depending on the solar cell architecture of interest.",

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Iandolo, B, Davidsen, RS & Hansen, O 2018, Single and double side textured black silicon require different annealing conditions for optimal passivation with ALD Al₂O₃. in 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (wcpec) (a Joint Conference of 45th Ieee Pvsc, 28th Pvsec and 34th Eu Pvsec). IEEE, pp. 3105-3107, 7th World Conference on Photovoltaic Energy Conversion , Waikoloa, Hawaii, United States, 10/06/2018. https://doi.org/10.1109/PVSC.2018.8547760

Single and double side textured black silicon require different annealing conditions for optimal passivation with ALD Al₂O₃. / Iandolo, Beniamino; Davidsen, Rasmus Schmidt; Hansen, Ole.
2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (wcpec) (a Joint Conference of 45th Ieee Pvsc, 28th Pvsec and 34th Eu Pvsec). IEEE, 2018. p. 3105-3107.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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AB - Black silicon is an attractive surface for solar cells thanks to its intrinsic antireflective properties, however progress in surface passivation is required to exploit its full potential. Here, we present effective minority carrier lifetime measurements on single side textured, double side textured, and flat reference Si surfaces, passivated by AI2O3 with subsequent thermal activation. Effective lifetime measurements revealed that the annealing time resulting in highest effective lifetime, and therefore in the lowest surface recombination velocity of the textured surface, is depending on whether the wafers are single or double side textured. It follows that optimization of passivation of black silicon lifetime samples needs to be carried out on samples with texturing on one or both sides, depending on the solar cell architecture of interest.

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