Efficiency enhancement of InGaN multi-quantum-well solar cells via light-harvesting SiO2 nano-honeycombs

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

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

Detail(s)

Original languageEnglish
Article number013105
Journal / PublicationApplied Physics Letters
Volume100
Issue number1
Publication statusPublished - 2 Jan 2012
Externally publishedYes

Abstract

Periodic sub-wavelength SiO2 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.

Citation Format(s)

Efficiency enhancement of InGaN multi-quantum-well solar cells via light-harvesting SiO2 nano-honeycombs. / Fu, P. H.; Lin, G. J.; Ho, C. H.; Lin, C. A.; Kang, C. F.; Lai, Y. L.; Lai, K. Y.; He, J. H.

In: Applied Physics Letters, Vol. 100, No. 1, 013105, 02.01.2012.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review