Functionalized zinc porphyrin as light harvester in dye sensitized solar cells

Journal of Chemical Sciences

M Raghavender¹  P Yella Reddy¹  Ch Vijay Kumar¹  K Somaiah¹  P Venkateswara Rao²  L Giribabu1¹ 

[1] Nanomaterials Laboratory, Inorganic and Physical Chemistry Division, Indian Institute of Chemical Technology, Hyderabad 500 007$$;Department of Chemistry, Nizam College (Osmania University), Hyderabad 500 001$$

关键词: Porphyrins;    triad;    solar cells;    gel electrolyte;    quasi-solid state.;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

A new photosensitizer having two rhodanine acetic acid groups at meso-positions of a zinc porphyrin [meso-Rhod-Zn-Rhod] has been synthesized and characterized by UV-Visible, 1H NMR, MALDI-MS, fluorescence spectroscopies and cyclic voltammetry. The new photosensitizer was tested in dye-sensitized solar cells with three different liquid redox electrolytes and compared its efficiency (𝜂) with dyad. Both dyad and triad were also tested in DSSC using a polymer gel redox electrolyte and observed low efficiency because of small short circuiting current i.e. ISc though the IPCE is significantly high. The probable reason for the low efficiency small ISc has been attributed to the internal resistance of the cell.

【 授权许可】

Unknown