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Development of dye-sensitized solar cells using pigment extracts produced by Talaromyces atroroseus GH2. | LitMetric

AI Article Synopsis

  • The study explores the use of microbial pigments from the fungus Talaromyces atroroseus GH2 to create innovative and efficient dye-sensitized solar cells (DSSCs) aimed at sustainable energy solutions.
  • The pigment extraction was analyzed using advanced techniques, revealing PP-O as the most abundant pigment among 22 identified, leading to an investigation of the solar cells' photovoltaic performance.
  • The best-performing microbial solar cell achieved a short-circuit current density of 0.69 mA/cm², an open-circuit voltage of 0.27 V, and a power conversion efficiency of 0.11%, showcasing the viability of using microbial pigments in solar energy applications.

Article Abstract

The identification of more efficient, clean, secure, and competitive energy supply is necessary to align with the needs of sustainable devices. For this reason, a study for developing innovative dye-sensitized solar cells (DSSCs) based on microbial pigments is reported starting from Talaromyces atroroseus GH2. The fungus was cultivated by fermentation and the extracellular pigment extract was characterized by HPLC-DAD-ESI-MS analyses. The most abundant compound among the 22 azaphilone-type pigments identified was represented by PP-O. The device's behavior was investigated in relation to electrolyte and pH for verifying the stability on time and the photovoltaic performance. Devices obtained were characterized by UV-vis measurements to verify the absorbance intensity and transmittance percentage. Moreover, photovoltaic parameters through photo-electrochemical measurements (I-V curves) and impedance characteristics by Electrochemical Impedance Spectroscopy (EIS) were determined. The best microbial device showed a short-circuit current density (Jsc) of 0.69 mA/cm, an open-circuit photo-voltage (Voc) of 0.27 V and a Fill Factor (FF) of 0.60. Furthermore, the power conversion efficiency (PCE) of the device was 0.11%. Thus, the present study demonstrated the potential of microbial origin pigments for developing DSSCs.

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Source
http://dx.doi.org/10.1007/s43630-024-00566-xDOI Listing

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