Investigating Calotropis Procera natural dye extracts and PDOT:PSS hole transport material for dye-sensitized solar cells
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Kuupäev
2021
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Abstrakt
In this work, natural dye extracts from Calotropis Procera are used as the main dyesensitizer in solar cells. The Calotropis plant is a non-food item capable of surviving the harsh
climate of the United Arab Emirates. Its incorporation into dye-sensitized solar cells is tested by
constructing various cells, whose performance was also compared to that of more common
chlorophyll-based dye extracts (i.e. spinach) as well as compared against a baseline cell sensitized
with a synthetic ruthenium dye. The performance of the Calotropis-based cells was in general
better than those with other natural sensitizers, but of course scored lower efficiency results when
compared to cells built with synthetic dyes (0.075% compared to 5.11%). The advantage in using
a natural sensitizer include facile extraction and preparation, low cost and abundance, since the
Calotropis source has no competing applications in terms of food, livestock feed, etc. The figureof-merit of cell output vs. cost for such cells makes them a good contender for further research
and development effort to overcome the obvious drawbacks of stability and service longevity.
Adding a hole-transport material to the cells in the form of PEDOT:PSS was also attempted to
assess the enhancement it could provide to the cells. This did not yield the desired results and
more experiments have to be done to better understand the interaction of each added layer to the
original cell design.
Kirjeldus
Received: February 24th, 2021 ; Accepted: May 2nd, 2021 ; Published: May 4th, 2021 ; Correspondence: aalalami@sharjah.ac.ae
Märksõnad
Calotropis Procera, dye-sensitized solar cells, natural sensitizer, third generation photovoltaics, articles