Journal of Energy and Natural Resources

Volume 5, Issue 1, February 2016

  • Photoelectrochmeical Cell Based on Natural Pigments and ZnO Nanoparticles

    Getachew Yirga, Sisay Tadesse, Teketel Yohannes

    Issue: Volume 5, Issue 1, February 2016
    Pages: 1-10
    Received: 4 November 2015
    Accepted: 12 November 2015
    Published: 21 January 2016
    Abstract: Natural pigments extracts from Bougainvillea spectabilis, Carissa Ovata, Hibiscus sabdariffa, Amarathus iresine herbisti, Beta vulgaris, are used as natural sensitizers for a dye sensitized solar cell (DSSC). ZnO nanoparticles were synthesized using sol-gel method and the size of the nanoparticle was determined using effective mass approximation mo... Show More
  • Dye-Sensitized Solar Cells Using Natural Dyes Extracted from Roselle (Hibiscus Sabdariffa) Flowers and Pawpaw (Carica Papaya) Leaves as Sensitizers

    Eli Danladi, Muhammad Sani Ahmad, Maxwell Idodo, Ezra Bako Danladi, Francis Aungwa, Sunday Habila Sarki

    Issue: Volume 5, Issue 1, February 2016
    Pages: 11-15
    Received: 30 January 2016
    Accepted: 9 February 2016
    Published: 24 February 2016
    Abstract: Dye-sensitized solar cells (DSSCs) were fabricated using natural dyes extracted from roselle flowers and carica papaya leaves extract as photosensitizers. The photovoltaic perfomance of the DSSCs were evaluated under 100 mAcm-2 light intensity. The roselle (Hibiscus Sabdariffa) extract sensitized solar cell gave a short circuit current density (Jsc... Show More