Ultralight-trapping filters with volume reflection holograms

Deming Zhang, Juan M. Russo, Michael Gordon, Shelby Vorndran, Raymond K Kostuk

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Light trapping is a useful approach for increasing the absorption of thin film photovoltaic (PV) cells. Simple light trapping can be achieved by incorporating a scattering layer on the top and bottom surface of cells and can increase absorption by a factor of 4$n2. Recently, ultralight trapping using Rugate and 1-D photonic bandgap filters have been proposed to increase light trapping by a factor of 4n2/sin2 θ, where θ is half of the acceptance angle. In this paper, we present the design of a holographic ultralight trapping filter. The holographic filter can be implemented in large areas at a low cost, which makes it scalable for PV applications. A design is presented that increases the optical path length for near bandgap wavelengths in a thin-film silicon PV cell. The optical path length enhancement is converted to electrical output using the PC-1D simulation software. The short-circuit current for a 10-μm-thick silicon PV cell increases by nearly 14.7% relative to a cell without light trapping.

Original languageEnglish (US)
Article number6322999
Pages (from-to)284-288
Number of pages5
JournalIEEE Journal of Photovoltaics
Volume3
Issue number1
DOIs
StatePublished - 2013

Fingerprint

Wave filters
Holograms
Photovoltaic cells
trapping
filters
photovoltaic cells
Silicon
Energy gap
optical paths
Thin films
Short circuit currents
Photonics
silicon
Scattering
short circuit currents
thin films
cells
acceptability
Wavelength
photonics

Keywords

  • Holographic optical element
  • light trapping
  • photovoltaic (PV)
  • thin-film silicon solar cells

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Ultralight-trapping filters with volume reflection holograms. / Zhang, Deming; Russo, Juan M.; Gordon, Michael; Vorndran, Shelby; Kostuk, Raymond K.

In: IEEE Journal of Photovoltaics, Vol. 3, No. 1, 6322999, 2013, p. 284-288.

Research output: Contribution to journalArticle

Zhang, Deming ; Russo, Juan M. ; Gordon, Michael ; Vorndran, Shelby ; Kostuk, Raymond K. / Ultralight-trapping filters with volume reflection holograms. In: IEEE Journal of Photovoltaics. 2013 ; Vol. 3, No. 1. pp. 284-288.
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