Dye stability of dye-sensitized solar cells with a conducting and a non-conducting electrode Yang Yu, Kunjie Wu, Kai Shen and Deliang Wang Eur. Phys. J. Appl. Phys., 61 1 (2013) 10201 Published online: 25 January 2013 DOI: 10.1051/epjap/2012120185