Efficiency enhancement of InGaN multi-quantum-well solar cells via light-harvesting SiO 2 nano-honeycombs

P. H. Fu; G. J. Lin; C. H. Ho; C. A. Lin; C. F. Kang; Y. L. Lai; K. Y. Lai; J. H. He

doi:10.1063/1.3673838

Efficiency enhancement of InGaN multi-quantum-well solar cells via light-harvesting SiO ₂ nano-honeycombs

P. H. Fu^*, G. J. Lin, C. H. Ho, C. A. Lin, C. F. Kang, Y. L. Lai, K. Y. Lai, J. H. He

^*Corresponding author for this work

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

25 Scopus citations

Abstract

Periodic sub-wavelength SiO ₂ nano-honeycombs are fabricated on GaN-based multiple quantum well solar cells by self-assembly polystyrene nanosphere lithography and reactive ion etching. The nano-honeycombs are found to be effective in suppressing the undesired surface reflections over a wide range of wavelengths. Under the illumination of air mass 1.5G solar simulator, conversion efficiency of the solar cell is enhanced by 24.4%. Simulations based on finite-difference time-domain method indicate that the improved performances result from the enhanced optical absorption in the active region due to the reflection suppression and enhanced forward scattering.

Original language	English (US)
Article number	013105
Journal	Applied Physics Letters
Volume	100
Issue number	1
DOIs	https://doi.org/10.1063/1.3673838
State	Published - Jan 2 2012
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Efficiency enhancement of InGaN multi-quantum-well solar cells via light-harvesting SiO 2 nano-honeycombs",

abstract = "Periodic sub-wavelength SiO 2 nano-honeycombs are fabricated on GaN-based multiple quantum well solar cells by self-assembly polystyrene nanosphere lithography and reactive ion etching. The nano-honeycombs are found to be effective in suppressing the undesired surface reflections over a wide range of wavelengths. Under the illumination of air mass 1.5G solar simulator, conversion efficiency of the solar cell is enhanced by 24.4%. Simulations based on finite-difference time-domain method indicate that the improved performances result from the enhanced optical absorption in the active region due to the reflection suppression and enhanced forward scattering.",

author = "Fu, {P. H.} and Lin, {G. J.} and Ho, {C. H.} and Lin, {C. A.} and Kang, {C. F.} and Lai, {Y. L.} and Lai, {K. Y.} and He, {J. H.}",

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AU - Fu, P. H.

AU - Lin, G. J.

AU - Ho, C. H.

AU - Lin, C. A.

AU - Kang, C. F.

AU - Lai, Y. L.

AU - Lai, K. Y.

AU - He, J. H.

PY - 2012/1/2

Y1 - 2012/1/2

N2 - Periodic sub-wavelength SiO 2 nano-honeycombs are fabricated on GaN-based multiple quantum well solar cells by self-assembly polystyrene nanosphere lithography and reactive ion etching. The nano-honeycombs are found to be effective in suppressing the undesired surface reflections over a wide range of wavelengths. Under the illumination of air mass 1.5G solar simulator, conversion efficiency of the solar cell is enhanced by 24.4%. Simulations based on finite-difference time-domain method indicate that the improved performances result from the enhanced optical absorption in the active region due to the reflection suppression and enhanced forward scattering.

AB - Periodic sub-wavelength SiO 2 nano-honeycombs are fabricated on GaN-based multiple quantum well solar cells by self-assembly polystyrene nanosphere lithography and reactive ion etching. The nano-honeycombs are found to be effective in suppressing the undesired surface reflections over a wide range of wavelengths. Under the illumination of air mass 1.5G solar simulator, conversion efficiency of the solar cell is enhanced by 24.4%. Simulations based on finite-difference time-domain method indicate that the improved performances result from the enhanced optical absorption in the active region due to the reflection suppression and enhanced forward scattering.

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Efficiency enhancement of InGaN multi-quantum-well solar cells via light-harvesting SiO ₂ nano-honeycombs

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