Abstract
The increasing demand for energy led to the development of the nonconventional energy source, the solar cell, and materials capable of harvesting light energy from the Sun. Of various types of solar cells, dye-sensitized solar cells (DSSCs) are low cost but have less efficiency. The paper reports on the development of cobalt phthalocyanine-incorporated natural dye with high broad absorption in the 400–800 nm region that exhibits excellent stability on aging. The nonlinear absorption coefficient and the refractive index, studied using the open- and closed-aperture Z-scan technique, are also found to be high, making it best suitable for DSSC applications.
© 2019 Optical Society of America
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