Utilization of direct and diffuse sunlight in a dye-sensitized solar cell - Silicon photovoltaic hybrid concentrator system

Greg D. Barber, Paul G. Hoertz, Seung Hyun Anna Lee, Neal M. Abrams, Janine Mikulca, Thomas E. Mallouk, Paul Liska, Shaik M. Zakeeruddin, Michael Grätzel, Anita Ho-Baillie, Martin A. Green

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37 Scopus citations

Abstract

The concept of a tandem hybrid concentrator solar module was demonstrated from a dye-sensitized TiO2 solar cell (DSSCs) and a silicon p-n junction solar cell. The test system employed DSSC and Si cells with indoor AM1.5G efficiencies of 9.1 and 18.1%, respectively. Two different optical filters were used to selectively reflect and concentrate near-infrared light from the DSSC onto the Si cell. On the basis of outdoor testing in a 2× concentrator-reflector arrangement, the tandem system generated 93 and 96% of the output power of directly illuminated Si cells under altostratus/cirrostratus and clear sky irradiances, respectively, despite a DSSC-to-Si active area ratio of only 0.92. Similar performance is expected at higher (5-10×) concentration ratios. The hybrid arrangement of visible- and IR-absorbing solar cells addresses the problem of lower performance of conventional concentrators under diffuse irradiance conditions. These proof-of-concept results suggest that system level efficiencies approaching 20% should be achievable.

Original languageEnglish (US)
Pages (from-to)581-585
Number of pages5
JournalJournal of Physical Chemistry Letters
Volume2
Issue number6
DOIs
StatePublished - Mar 17 2011

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Physical and Theoretical Chemistry

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    Barber, G. D., Hoertz, P. G., Lee, S. H. A., Abrams, N. M., Mikulca, J., Mallouk, T. E., Liska, P., Zakeeruddin, S. M., Grätzel, M., Ho-Baillie, A., & Green, M. A. (2011). Utilization of direct and diffuse sunlight in a dye-sensitized solar cell - Silicon photovoltaic hybrid concentrator system. Journal of Physical Chemistry Letters, 2(6), 581-585. https://doi.org/10.1021/jz200112m