Goswami, N.; Gogoi, P.; Saha, U.; Bhattacharyya, M.; Chetia, T. Synthesis, Crystal Structure and Application of New Cobalt(II) Complex [Co(bpy)2NO3]·NO3·5H2O As Sensitizer in Dye-Sensitized Solar Cells. ajc 2018, 30, 679-683.