Analysis of enhanced absorption in dense silicon nanowire arrays

Björn C. P. Sturmberg; Kokou B. Dossou; Lindsay C. Botten; Ara A. Asatryan; Christopher G. Poulton; C. Martijn de Sterke; Ross C. McPhedran

Analysis of enhanced absorption in dense silicon nanowire arrays

Björn C. P. Sturmberg, Kokou B. Dossou, Lindsay C. Botten, Ara A. Asatryan, Christopher G. Poulton, C. Martijn de Sterke, Ross C. McPhedran

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

1 Citation (Scopus)

Abstract

We analyze the absorption of solar radiation by dense silicon nanowire arrays, which are being considered for use in solar cells. Though it is known that these structures absorb sunlight much more efficiently than bulk silicon, the mechanism is complicated and not understood. Using a novel, semi-analytic model, we show that the enhanced absorption can be attributed to a few modes of the array, which couple well to incident light, overlap well with the silicon, and exhibit strong Fabry-Pérot resonances. For some frequencies the absorption is further enhanced by slow light effects.

Original language	English
Title of host publication	Proceedings of the International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim 2011
Publisher	OSA - The Optical Society
Pages	1136-1138
Number of pages	3
ISBN (Print)	9780977565771
Publication status	Published - 2011
Externally published	Yes
Event	International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim - Sydney Duration: 28 Aug 2011 → 1 Sept 2011

Conference

Conference	International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim
City	Sydney
Period	28/08/11 → 1/09/11

Cite this

Sturmberg, B. C. P., Dossou, K. B., Botten, L. C., Asatryan, A. A., Poulton, C. G., Martijn de Sterke, C., & McPhedran, R. C. (2011). Analysis of enhanced absorption in dense silicon nanowire arrays. In Proceedings of the International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim 2011 (pp. 1136-1138). OSA - The Optical Society.

@inproceedings{c5cac2bf94be42a698632a22e4f5b11e,

title = "Analysis of enhanced absorption in dense silicon nanowire arrays",

abstract = "We analyze the absorption of solar radiation by dense silicon nanowire arrays, which are being considered for use in solar cells. Though it is known that these structures absorb sunlight much more efficiently than bulk silicon, the mechanism is complicated and not understood. Using a novel, semi-analytic model, we show that the enhanced absorption can be attributed to a few modes of the array, which couple well to incident light, overlap well with the silicon, and exhibit strong Fabry-P{\'e}rot resonances. For some frequencies the absorption is further enhanced by slow light effects.",

author = "Sturmberg, {Bj{\"o}rn C. P.} and Dossou, {Kokou B.} and Botten, {Lindsay C.} and Asatryan, {Ara A.} and Poulton, {Christopher G.} and {Martijn de Sterke}, C. and McPhedran, {Ross C.}",

year = "2011",

language = "English",

isbn = "9780977565771",

pages = "1136--1138",

booktitle = "Proceedings of the International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim 2011",

publisher = "OSA - The Optical Society",

note = "International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim ; Conference date: 28-08-2011 Through 01-09-2011",

}

Sturmberg, BCP, Dossou, KB, Botten, LC, Asatryan, AA, Poulton, CG, Martijn de Sterke, C & McPhedran, RC 2011, Analysis of enhanced absorption in dense silicon nanowire arrays. in Proceedings of the International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim 2011. OSA - The Optical Society, pp. 1136-1138, International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim, Sydney, 28/08/11.

Analysis of enhanced absorption in dense silicon nanowire arrays. / Sturmberg, Björn C. P.; Dossou, Kokou B.; Botten, Lindsay C. et al.
Proceedings of the International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim 2011. OSA - The Optical Society, 2011. p. 1136-1138.

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

TY - GEN

T1 - Analysis of enhanced absorption in dense silicon nanowire arrays

AU - Sturmberg, Björn C. P.

AU - Dossou, Kokou B.

AU - Botten, Lindsay C.

AU - Asatryan, Ara A.

AU - Poulton, Christopher G.

AU - Martijn de Sterke, C.

AU - McPhedran, Ross C.

PY - 2011

Y1 - 2011

N2 - We analyze the absorption of solar radiation by dense silicon nanowire arrays, which are being considered for use in solar cells. Though it is known that these structures absorb sunlight much more efficiently than bulk silicon, the mechanism is complicated and not understood. Using a novel, semi-analytic model, we show that the enhanced absorption can be attributed to a few modes of the array, which couple well to incident light, overlap well with the silicon, and exhibit strong Fabry-Pérot resonances. For some frequencies the absorption is further enhanced by slow light effects.

AB - We analyze the absorption of solar radiation by dense silicon nanowire arrays, which are being considered for use in solar cells. Though it is known that these structures absorb sunlight much more efficiently than bulk silicon, the mechanism is complicated and not understood. Using a novel, semi-analytic model, we show that the enhanced absorption can be attributed to a few modes of the array, which couple well to incident light, overlap well with the silicon, and exhibit strong Fabry-Pérot resonances. For some frequencies the absorption is further enhanced by slow light effects.

UR - http://www.scopus.com/inward/record.url?scp=84894251707&partnerID=8YFLogxK

M3 - Conference proceeding contribution

AN - SCOPUS:84894251707

SN - 9780977565771

SP - 1136

EP - 1138

BT - Proceedings of the International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim 2011

PB - OSA - The Optical Society

T2 - International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim

Y2 - 28 August 2011 through 1 September 2011

ER -

Analysis of enhanced absorption in dense silicon nanowire arrays

Abstract

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