Above-11%-efficiency organic-inorganic hybrid solar cells with omnidirectional harvesting characteristics by employing hierarchical photon-trapping structures

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

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Author(s)

  • Wan-Rou Wei
  • Meng-Lin Tsai
  • Shu-Te Ho
  • Shih-Hsiang Tai
  • Cherng-Rong Ho
  • Shin-Hung Tsai
  • Chee-Wee Liu
  • Ren-Jei Chung

Detail(s)

Original languageEnglish
Pages (from-to)3658-3663
Journal / PublicationNano Letters
Volume13
Issue number8
Online published2 Aug 2013
Publication statusPublished - 14 Aug 2013
Externally publishedYes

Abstract

Hierarchical structures consisting of micropyramids and nanowires are used in Si/PEDOT:PSS hybrid solar cells to achieve a power conversion efficiency (PCE) up to 11.48% with excellent omnidirectionality. The structure provides a combined concepts of superior light trapping ability, significant increase of p-n junction areas, and short carrier diffusion distance, improving the photovoltaic characteristics including short-circuit current density, fill factor, and PCE. The enhancement of power generation is up to 253.8% at high incident angles, showing the outstanding omnidirectional operation ability of hybrid cells with hierarchical Si surfaces. This properly designed hierarchical-structured device paves a promising way for developing low-cost, high-efficiency, and omnidirectional solar applications in the future.

Research Area(s)

  • heterojunction, Hybrid solar cells, omnidirectionality, pγhoton management, Si

Citation Format(s)

Above-11%-efficiency organic-inorganic hybrid solar cells with omnidirectional harvesting characteristics by employing hierarchical photon-trapping structures. / Wei, Wan-Rou; Tsai, Meng-Lin; Ho, Shu-Te; Tai, Shih-Hsiang; Ho, Cherng-Rong; Tsai, Shin-Hung; Liu, Chee-Wee; Chung, Ren-Jei; He, Jr-Hau.

In: Nano Letters, Vol. 13, No. 8, 14.08.2013, p. 3658-3663.

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