Improved light scattering and surface plasmon tuning in amorphous silicon solar cells by double-walled carbon nanotubes

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

11 Scopus Citations
View graph of relations

Author(s)

  • Wei-Chen Tu
  • Yi-Tsung Chang
  • Hsin-Ping Wang
  • Chieh-Hung Yang
  • Chia-Tze Huang
  • Si-Chen Lee

Detail(s)

Original languageEnglish
Pages (from-to)200-203
Journal / PublicationSolar Energy Materials and Solar Cells
Volume101
Online published23 Feb 2012
Publication statusPublished - Jun 2012
Externally publishedYes

Abstract

Surface plasmon resonance was observed to red shift in hexagonal nanohemisphere Ag array covered by double-walled carbon nanotubes. By altering the density of carbon nanotubes, the surface plasmon resonance can be tuned from 563 nm to 586 nm and the light scattering is enhanced in the spectral range from orange to red. This leads to improved performance of amorphous silicon solar cells deposited on top, which yields a short-circuit current density of 14.07 mA/cm2 and a power conversion efficiency of 6.55% under the illumination of AM 1.5G. This carbon nanotubes' density-dependent surface plasmon shift is attributed to the dielectric constant change around the periodic Ag nanostructure, which can be applied to other solar cell materials by fine-tuning the surface plasmon resonance to enhance the absorption at wavelength where the active layer is less absorptive.

Research Area(s)

  • Carbon nanotubes, Light scattering, Nanostructure, Surface plasmon, Thin-film solar cell

Citation Format(s)

Improved light scattering and surface plasmon tuning in amorphous silicon solar cells by double-walled carbon nanotubes. / Tu, Wei-Chen; Chang, Yi-Tsung; Wang, Hsin-Ping; Yang, Chieh-Hung; Huang, Chia-Tze; He, Jr-Hau; Lee, Si-Chen.

In: Solar Energy Materials and Solar Cells, Vol. 101, 06.2012, p. 200-203.

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