Strategy to Select and Grade Efficient Dyes for Enhanced Photo-Absorption


  • A. Babangida Department of Physics, Aminu Saleh College of Education Azare, Bauchi State, Nigeria; Department of Physics, Modibbo Adama University Yola, Adamawa State, Nigeria
  • J. B. Yerima Department of Physics, Modibbo Adama University Yola, Adamawa State, Nigeria
  • A. D. Ahmed Department of Physics, Modibbo Adama University Yola, Adamawa State, Nigeria
  • S. C. Ezike Department of Physics, Modibbo Adama University Yola, Adamawa State, Nigeria


Selection criteria, Dye-grade, Absorbance, Anthocyanin, Photo-absorber


In this paper, a simple strategy to select and grade efficient natural dye-sensitizers for photo-absorption is developed. The selection criteria help to choose efficient dye for construction of solar cell. On the other hand, the dye-grade technique based on light and matter interaction parameters (absorbance, anthocyanin, and light harvesting efficiency) further reduce the number of dyes for efficient dye-sensitized solar cell (DSSC) production. The result shows that the dyes extracted from witch seed flower (Striga hermonthica), flamboyant flower (Delonix regia), and bitter gourd (Momordica charantia) have dye-grade 1, are the most efficient photo-absorber for enhanced DSSC fabrication while guava peel dye has grade 10 being the least efficient dye. The selection criteria and dye-grade techniques provide surer way of getting promising dyes for effiective DSSC production than choosing the dyes randomly based on some features like their colors and abundance.


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How to Cite

Babangida, A., Yerima, J. B., Ahmed, A. D., & Ezike, S. C. (2022). Strategy to Select and Grade Efficient Dyes for Enhanced Photo-Absorption. African Scientific Reports, 1(1), 16–22.



Original Research