Hierarchical structures consisting of SiO2 nanorods and p-GaN microdomes for efficiently harvesting solar energy for InGaN quantum well photovoltaic cells

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

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Author(s)

  • Cheng-Han Ho
  • Der-Hsien Lien
  • Hung-Chih Chang
  • Chin-An Lin
  • Chen-Fang Kang
  • Meng-Kai Hsing
  • Kun-Yu Lai

Detail(s)

Original languageEnglish
Pages (from-to)7346-7349
Journal / PublicationNanoscale
Volume4
Issue number23
Online published9 Oct 2012
Publication statusPublished - 8 Nov 2012
Externally publishedYes

Abstract

We experimentally and theoretically demonstrated the hierarchical structure of SiO2 nanorod arrays/p-GaN microdomes as a light harvesting scheme for InGaN-based multiple quantum well solar cells. The combination of nano- and micro-structures leads to increased internal multiple reflection and provides an intermediate refractive index between air and GaN. Cells with the hierarchical structure exhibit improved short-circuit current densities and fill factors, rendering a 1.47 fold efficiency enhancement as compared to planar cells.

Citation Format(s)

Hierarchical structures consisting of SiO2 nanorods and p-GaN microdomes for efficiently harvesting solar energy for InGaN quantum well photovoltaic cells. / Ho, Cheng-Han; Lien, Der-Hsien; Chang, Hung-Chih; Lin, Chin-An; Kang, Chen-Fang; Hsing, Meng-Kai; Lai, Kun-Yu; He, Jr-Hau.

In: Nanoscale, Vol. 4, No. 23, 08.11.2012, p. 7346-7349.

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