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Impact of Extraction Methods upon Light Absorbance of Natural Organic Dyes for Dye Sensitized Solar Cells Application

Received: 2 June 2014     Accepted: 19 June 2014     Published: 30 June 2014
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Abstract

Aqueous extraction, cold ethanol, and Soxhlet hot ethanol extraction methods were used to study the general trend in performance of dyes as sensitisers for dye sensitized solar cells (DSSC) from different plants based on optical absorbance, and consequently light harvesting efficiency (LHE). Spathodea campanulata, Thevetia peruviana, Hibiscus sabdariffa, Delonix regia and Acalypha wilkesiana ‘Haleakala’ were used in this study. From the UV/Visible spectrophotometer with the recorded absorption measurements in the range between 300 – 700 nm, the cold ethanol and Soxhlet hot ethanol extracts exhibited LHE between 80 – 100% over 400 ~ 550 nm of visible range, and 40 – 99% for water extracts dyes between 400 – 700 nm. Ethanol extract of Acalypha wilkesiana ‘Haleakala’ had the highest LHE and a widely spread optical spectrum between 400 – 700 nm; it was earmarked as a potential sensitizer candidate for DSSC. The phytochemical screening was applied to detect the presence of anthocyanins, quinones, cuomarines and others in the extracts. Based on the phytochemical screening, there was no appreciable impact of the extraction methods on the presence of the organic compounds relative to individual samples; and also the optical absorption showed that no extraction method was found consistently better than the other in all extracts.

Published in Journal of Energy and Natural Resources (Volume 3, Issue 3)
DOI 10.11648/j.jenr.20140303.13
Page(s) 38-45
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2014. Published by Science Publishing Group

Keywords

Dye Sensitized Solar Cell, Extraction Method, Optical Absorbance, Light-Harvesting-Efficiency, Natural Organic Dye, Phytochemical Screening

References
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  • APA Style

    Barness Chirazo Mphande, Alexander Pogrebnoi. (2014). Impact of Extraction Methods upon Light Absorbance of Natural Organic Dyes for Dye Sensitized Solar Cells Application. Journal of Energy and Natural Resources, 3(3), 38-45. https://doi.org/10.11648/j.jenr.20140303.13

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    ACS Style

    Barness Chirazo Mphande; Alexander Pogrebnoi. Impact of Extraction Methods upon Light Absorbance of Natural Organic Dyes for Dye Sensitized Solar Cells Application. J. Energy Nat. Resour. 2014, 3(3), 38-45. doi: 10.11648/j.jenr.20140303.13

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    AMA Style

    Barness Chirazo Mphande, Alexander Pogrebnoi. Impact of Extraction Methods upon Light Absorbance of Natural Organic Dyes for Dye Sensitized Solar Cells Application. J Energy Nat Resour. 2014;3(3):38-45. doi: 10.11648/j.jenr.20140303.13

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  • @article{10.11648/j.jenr.20140303.13,
      author = {Barness Chirazo Mphande and Alexander Pogrebnoi},
      title = {Impact of Extraction Methods upon Light Absorbance of Natural Organic Dyes for Dye Sensitized Solar Cells Application},
      journal = {Journal of Energy and Natural Resources},
      volume = {3},
      number = {3},
      pages = {38-45},
      doi = {10.11648/j.jenr.20140303.13},
      url = {https://doi.org/10.11648/j.jenr.20140303.13},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jenr.20140303.13},
      abstract = {Aqueous extraction, cold ethanol, and Soxhlet hot ethanol extraction methods were used to study the general trend in performance of dyes as sensitisers for dye sensitized solar cells (DSSC) from different plants based on optical absorbance, and consequently light harvesting efficiency (LHE). Spathodea campanulata, Thevetia peruviana, Hibiscus sabdariffa, Delonix regia and Acalypha wilkesiana ‘Haleakala’ were used in this study. From the UV/Visible spectrophotometer with the recorded absorption measurements in the range between 300 – 700 nm, the cold ethanol and Soxhlet hot ethanol extracts exhibited LHE between 80 – 100% over 400 ~ 550 nm of visible range, and 40 – 99% for water extracts dyes between 400 – 700 nm. Ethanol extract of Acalypha wilkesiana ‘Haleakala’ had the highest LHE and a widely spread optical spectrum between 400 – 700 nm; it was earmarked as a potential sensitizer candidate for DSSC. The phytochemical screening was applied to detect the presence of anthocyanins, quinones, cuomarines and others in the extracts. Based on the phytochemical screening, there was no appreciable impact of the extraction methods on the presence of the organic compounds relative to individual samples; and also the optical absorption showed that no extraction method was found consistently better than the other in all extracts.},
     year = {2014}
    }
    

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  • TY  - JOUR
    T1  - Impact of Extraction Methods upon Light Absorbance of Natural Organic Dyes for Dye Sensitized Solar Cells Application
    AU  - Barness Chirazo Mphande
    AU  - Alexander Pogrebnoi
    Y1  - 2014/06/30
    PY  - 2014
    N1  - https://doi.org/10.11648/j.jenr.20140303.13
    DO  - 10.11648/j.jenr.20140303.13
    T2  - Journal of Energy and Natural Resources
    JF  - Journal of Energy and Natural Resources
    JO  - Journal of Energy and Natural Resources
    SP  - 38
    EP  - 45
    PB  - Science Publishing Group
    SN  - 2330-7404
    UR  - https://doi.org/10.11648/j.jenr.20140303.13
    AB  - Aqueous extraction, cold ethanol, and Soxhlet hot ethanol extraction methods were used to study the general trend in performance of dyes as sensitisers for dye sensitized solar cells (DSSC) from different plants based on optical absorbance, and consequently light harvesting efficiency (LHE). Spathodea campanulata, Thevetia peruviana, Hibiscus sabdariffa, Delonix regia and Acalypha wilkesiana ‘Haleakala’ were used in this study. From the UV/Visible spectrophotometer with the recorded absorption measurements in the range between 300 – 700 nm, the cold ethanol and Soxhlet hot ethanol extracts exhibited LHE between 80 – 100% over 400 ~ 550 nm of visible range, and 40 – 99% for water extracts dyes between 400 – 700 nm. Ethanol extract of Acalypha wilkesiana ‘Haleakala’ had the highest LHE and a widely spread optical spectrum between 400 – 700 nm; it was earmarked as a potential sensitizer candidate for DSSC. The phytochemical screening was applied to detect the presence of anthocyanins, quinones, cuomarines and others in the extracts. Based on the phytochemical screening, there was no appreciable impact of the extraction methods on the presence of the organic compounds relative to individual samples; and also the optical absorption showed that no extraction method was found consistently better than the other in all extracts.
    VL  - 3
    IS  - 3
    ER  - 

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Author Information
  • Dept. of Materials Science and Engineering, The Nelson Mandela African Institution of Science and Technology, Arusha, Tanzania

  • Dept. of Materials Science and Engineering, The Nelson Mandela African Institution of Science and Technology, Arusha, Tanzania

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