Extremely robust photocurrent generation of titanium dioxide photoanodes bio-sensitized with recombinant microalgal light-harvesting proteins.

Lämmermann N, Schmid-Michels F, Weissmann A, Wobbe L, Hütten A, Kruse O (2019)
Scientific reports 9: 2109.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
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Abstract / Bemerkung
Bio-dyes for light harvesting in dye-sensitized solar cells (DSSC) have the advantage of being environmentally-friendly, non-toxic alternatives, which can be produced in a sustainable fashion. Free photosynthetic pigments are unstable in the presence of light and oxygen, a situation which can hardly be avoided during the operation of DSSCs, especially in large-scale applications. We therefore investigated the recombinant light-harvesting protein LHCBM6, which naturally occurs in the photosynthetic apparatus of the green microalga Chlamydomonas reinhardtii as a bio-dye in DSSCs. Photocurrent densities of up to 0.87 and 0.94 mA·cm-2 were determined for the DSSCs and solar energy to electricity conversion efficiencies (η) reached about 0.3% (100 mW·cm-2; AM 1.5 G filter applied). Importantly, we observed an unprecedented stability of LHCII-based DSSCs within long DSSC operation times of at least 7 days in continuous light and show that operation times are restricted by electrolyte decomposition rather than reduced dye performance, as could be demonstrated by DSSC reactivation following re-supplementation with fresh electrolyte. To the best of our knowledge, this is the first study analysing bio-dye sensitized DSSCs over such long periods, which revealed that during illumination an activation of the DSSCs occurs.
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Scientific reports
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9
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2109
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Article Processing Charge funded by the Deutsche Forschungsgemeinschaft and the Open Access Publication Fund of Bielefeld University.
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Lämmermann N, Schmid-Michels F, Weissmann A, Wobbe L, Hütten A, Kruse O. Extremely robust photocurrent generation of titanium dioxide photoanodes bio-sensitized with recombinant microalgal light-harvesting proteins. Scientific reports. 2019;9: 2109.
Lämmermann, N., Schmid-Michels, F., Weissmann, A., Wobbe, L., Hütten, A., & Kruse, O. (2019). Extremely robust photocurrent generation of titanium dioxide photoanodes bio-sensitized with recombinant microalgal light-harvesting proteins. Scientific reports, 9, 2109. doi:10.1038/s41598-019-39344-6
Lämmermann, N., Schmid-Michels, F., Weissmann, A., Wobbe, L., Hütten, A., and Kruse, O. (2019). Extremely robust photocurrent generation of titanium dioxide photoanodes bio-sensitized with recombinant microalgal light-harvesting proteins. Scientific reports 9:2109.
Lämmermann, N., et al., 2019. Extremely robust photocurrent generation of titanium dioxide photoanodes bio-sensitized with recombinant microalgal light-harvesting proteins. Scientific reports, 9: 2109.
N. Lämmermann, et al., “Extremely robust photocurrent generation of titanium dioxide photoanodes bio-sensitized with recombinant microalgal light-harvesting proteins.”, Scientific reports, vol. 9, 2019, : 2109.
Lämmermann, N., Schmid-Michels, F., Weissmann, A., Wobbe, L., Hütten, A., Kruse, O.: Extremely robust photocurrent generation of titanium dioxide photoanodes bio-sensitized with recombinant microalgal light-harvesting proteins. Scientific reports. 9, : 2109 (2019).
Lämmermann, Nina, Schmid-Michels, Fabian, Weissmann, Aike, Wobbe, Lutz, Hütten, Andreas, and Kruse, Olaf. “Extremely robust photocurrent generation of titanium dioxide photoanodes bio-sensitized with recombinant microalgal light-harvesting proteins.”. Scientific reports 9 (2019): 2109.
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