Planar dye-sensitized photovoltaics through cavity mode enhancement

Alex B F Martinson, Noel C. Giebink, Gary P. Wiederrecht, D. Rosenmann, Michael R Wasielewski

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Dye-sensitized solar cells (DSSCs) differ from conventional solar cells in that they rely on a large area nanoparticle network to achieve sufficient absorption of sunlight. Although highly successful to date, this approach limits the opportunities to further increase DSSC power efficiency because it necessarily restricts the choice of redox shuttles to those compatible with the long electron transit times and ample recombination opportunities inherent to the nanoparticle-based architecture. Here, we use a resonantly coupled cavity scheme to demonstrate planar, thin-film DSSCs with a polarized, monochromatic incident photon to current efficiency of 17% from a single monolayer of a conventional Ru-dye. Upon illumination on resonance we observe open-circuit voltages that reach 1 V and thereby approach the theoretical limit for open-circuit voltage set by the dye and redox shuttle energy levels. The results supply new insight into processes presently limiting DSSCs and point to novel strategies to overcome these losses.

Original languageEnglish
Pages (from-to)2980-2985
Number of pages6
JournalEnergy and Environmental Science
Volume4
Issue number8
DOIs
Publication statusPublished - Aug 2011

Fingerprint

dye
cavity
Coloring Agents
Dyes
Open circuit voltage
Nanoparticles
Electron energy levels
Monolayers
Solar cells
Photons
Lighting
recombination
Dye-sensitized solar cells
Electrons
solar cell
electron
energy
Oxidation-Reduction
nanoparticle

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Environmental Chemistry
  • Pollution
  • Nuclear Energy and Engineering

Cite this

Planar dye-sensitized photovoltaics through cavity mode enhancement. / Martinson, Alex B F; Giebink, Noel C.; Wiederrecht, Gary P.; Rosenmann, D.; Wasielewski, Michael R.

In: Energy and Environmental Science, Vol. 4, No. 8, 08.2011, p. 2980-2985.

Research output: Contribution to journalArticle

Martinson, ABF, Giebink, NC, Wiederrecht, GP, Rosenmann, D & Wasielewski, MR 2011, 'Planar dye-sensitized photovoltaics through cavity mode enhancement', Energy and Environmental Science, vol. 4, no. 8, pp. 2980-2985. https://doi.org/10.1039/c1ee01578h
Martinson, Alex B F ; Giebink, Noel C. ; Wiederrecht, Gary P. ; Rosenmann, D. ; Wasielewski, Michael R. / Planar dye-sensitized photovoltaics through cavity mode enhancement. In: Energy and Environmental Science. 2011 ; Vol. 4, No. 8. pp. 2980-2985.
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