Solar energy harvesting scheme using syringe-like ZnO nanorod arrays for InGaN/GaN multiple quantum well solar cells

G. J. Lin; K. Y. Lai; C. A. Lin; J. H. He

doi:10.1364/OL.37.000061

Solar energy harvesting scheme using syringe-like ZnO nanorod arrays for InGaN/GaN multiple quantum well solar cells

G. J. Lin, K. Y. Lai, C. A. Lin, J. H. He

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

20 Citations (Scopus)

Abstract

Syringe-like ZnO nanorod arrays (NRAs) synthesized by a hydrothermal method were applied as the lightharvesting layer on InGaN-based multiple quantum well (MQW) solar cells. Theoretical calculations show that the NRAs with an abrupt shrinkage of tip diameter can further suppress surface reflectance in comparison with the flat NRAs. InGaN-based MQW solar cells with the syringe-like NRAs exhibit greatly improved conversion efficiencies by 36%. These results are attributed to the improved flatness of the refractive index profile at the air/device interface, which results in enhanced light trapping effect on the device surface.

Original language	English
Pages (from-to)	61-63
Journal	Optics Letters
Volume	37
Issue number	1
Online published	24 Dec 2011
DOIs	https://doi.org/10.1364/OL.37.000061
Publication status	Published - 1 Jan 2012
Externally published	Yes

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abstract = "Syringe-like ZnO nanorod arrays (NRAs) synthesized by a hydrothermal method were applied as the lightharvesting layer on InGaN-based multiple quantum well (MQW) solar cells. Theoretical calculations show that the NRAs with an abrupt shrinkage of tip diameter can further suppress surface reflectance in comparison with the flat NRAs. InGaN-based MQW solar cells with the syringe-like NRAs exhibit greatly improved conversion efficiencies by 36%. These results are attributed to the improved flatness of the refractive index profile at the air/device interface, which results in enhanced light trapping effect on the device surface.",

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AU - Lai, K. Y.

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AU - He, J. H.

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N2 - Syringe-like ZnO nanorod arrays (NRAs) synthesized by a hydrothermal method were applied as the lightharvesting layer on InGaN-based multiple quantum well (MQW) solar cells. Theoretical calculations show that the NRAs with an abrupt shrinkage of tip diameter can further suppress surface reflectance in comparison with the flat NRAs. InGaN-based MQW solar cells with the syringe-like NRAs exhibit greatly improved conversion efficiencies by 36%. These results are attributed to the improved flatness of the refractive index profile at the air/device interface, which results in enhanced light trapping effect on the device surface.

AB - Syringe-like ZnO nanorod arrays (NRAs) synthesized by a hydrothermal method were applied as the lightharvesting layer on InGaN-based multiple quantum well (MQW) solar cells. Theoretical calculations show that the NRAs with an abrupt shrinkage of tip diameter can further suppress surface reflectance in comparison with the flat NRAs. InGaN-based MQW solar cells with the syringe-like NRAs exhibit greatly improved conversion efficiencies by 36%. These results are attributed to the improved flatness of the refractive index profile at the air/device interface, which results in enhanced light trapping effect on the device surface.

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M3 - RGC 21 - Publication in refereed journal

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SP - 61

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JO - Optics Letters

JF - Optics Letters

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Solar energy harvesting scheme using syringe-like ZnO nanorod arrays for InGaN/GaN multiple quantum well solar cells

Abstract

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