“Novel Organic Dyes with Pyrene Auxillary Donor and Naphthalimide Auxiliary Acceptor for Solar Cell Applications and Imaging Cells”
With advancement in technology and raise in population there is an increased consumption and demand for energy. Solar energy, which is abundant, non-polluting renewable source, is expected to play a dynamic role as a source of energy with unlimited supply. Although sun provides abundant energy, capturing and converting it to electricity remains a great challenge.
The DSSC technology is efficient third-generation solar technology available for commercialization. DSSCs are comparatively less expensive than first and second generation solar cells1. The basic structural architecture of the organic dyes used in DSSC is donor-π-bridge-acceptor (D-π-A). To broaden the absorption spectra, while strengthening the intramolecular charge transfer process and preventing aggregation, several other representative frameworks were developed with auxiliary acceptor and auxiliary donor.2
In the first work, based on the properties of phenothiazine and pyrene groups, six new dyes were synthesised and their photovoltaic performance was investigated.3 In second work, two dyes with naphthalimide as auxiliary acceptor and phenothiazine as donor, were synthesised and their efficiencies were tested. In the other part of work, dye comprising triphenyl amine donor and two auxiliary acceptors were incorporated to the system expecting a dye with better charge separation.