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ZnO Electrodeposition Model for Morphology Control.

Nanomaterials (Basel, Switzerland)·2022
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Biomimetic ZnO for Dye-Sensitized Solar Cells.

Javier Orozco-Messana1

  • 1Instituto de Tecnología de Materiales, Universitat Politecnica de Valencia, 46022 Valencia, Spain.

Nanomaterials (Basel, Switzerland)
|September 29, 2020
PubMed
Summary

Researchers developed biomimetic zinc oxide (ZnO) from eggshells for dye-sensitized solar cells (DSSCs). This novel ZnO shows improved light absorption and surface area, offering a promising sustainable alternative for solar energy applications.

Keywords:
Building Integrated Photovoltaics (BIPVs)DSSCsbiomimetic ZnOceramicslow-cost Photovoltaics (PVs)

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Area of Science:

  • Materials Science
  • Renewable Energy
  • Nanotechnology

Background:

  • Dye-sensitized solar cells (DSSCs) are a type of photovoltaic technology.
  • Zinc oxide (ZnO) is a semiconductor material with potential applications in solar cells.
  • Sustainable and cost-effective synthesis methods for ZnO are highly desirable.

Purpose of the Study:

  • To synthesize and characterize biomimetic ZnO from eggshell membranes for use as photoanodes in DSSCs.
  • To compare the properties of biomimetic ZnO with commercial ZnO.
  • To evaluate the performance of DSSCs utilizing biomimetic ZnO.

Main Methods:

  • Biomimetic synthesis of ZnO from eggshell membranes.
  • Characterization of ZnO properties including surface area, crystallinity, morphology (SEM), and light absorption.
  • Assembly and testing of dye-sensitized and dye-less solar cells using biomimetic and commercial ZnO.

Main Results:

  • Biomimetic ZnO exhibited a larger surface area, smaller crystallite size, and enhanced light absorption compared to commercial ZnO.
  • SEM analysis revealed a unique tubular microstructure of nanocrystals in biomimetic ZnO, contrasting with the spherical particles of commercial ZnO.
  • The enhanced properties of biomimetic ZnO are potentially attributed to crystalline defects.

Conclusions:

  • Biomimetic ZnO derived from eggshell membranes is a viable and potentially superior alternative to commercial ZnO for photoanode applications in solar cells.
  • The unique microstructure and enhanced optical properties of biomimetic ZnO contribute to its improved performance.
  • This research highlights a sustainable approach for producing advanced nanomaterials for renewable energy technologies.