S.  Nagane, Ichake, A., Agrawal, I., Sadhanala, A., Friend, R. H., Ogale, S., and Wadgaonkar, P. P., ?Phenothiazine-based D-A-?-A dyes for highly efficient dye sensitized solar cells: effect of internal acceptor and non-conjugated ?-spacer on device performance?, ChemPlusChem, vol. 82, no. 2, pp. 280-286, 2017.