Yildiz, BurakArslan, Baris SeckinGuzel, EmreNebioglu, MehmetMenges, NurettinSisman, IlkaySener, M. Kasim2025-05-102025-05-1020210038-092X1471-125710.1016/j.solener.2021.08.0332-s2.0-85113647332https://doi.org/10.1016/j.solener.2021.08.033https://hdl.handle.net/20.500.14720/8027Nebioglu, Mehmet/0000-0002-2603-3906; Sisman, Ilkay/0000-0002-0943-2817; Yildiz, Burak/0000-0001-8283-3230; Menges, Nurettin/0000-0002-5990-6275; Guzel, Emre/0000-0002-1142-3936A novel unsymmetrical zinc phthalocyanine complex (PCA-ZnPc-3) containing six 2,6-diphenylphenoxy donor groups and pyrazole-3-carboxylic acid anchoring group has been synthesized and used as a sensitizer for dye sensitized solar cells (DSSCs). The optical, electrochemical and photovoltaic characteristics were evaluated and compared with the dyes containing the same anchoring group and tert-butyl (PCA-ZnPc-1) or hexylsulfanyl (PCA-ZnPc-2) donor groups, developed by our group. The DSSC with PCA-ZnPc-3 exhibited a higher power conversion efficiency (PCE) of 2.04% as compared to that of PCA-ZnPc-1 (PCE = 1.74%) and PCA-ZnPc-2 (PCE = 1.89%). This enhancement in efficiency may be ascribed to the less dye aggregation and appropriate dye coverage. These results suggest that the incorporation of 2,6-diphenylphenoxy into pyrazole-3-carboxylic acid based zinc phthalocyanine sensitizers can improve photovoltaic performance of DSSCs.eninfo:eu-repo/semantics/closedAccessDye-Sensitized Solar CellPhthalocyaninePyrazole-3-Carboxylic Acid2,6-Diphenylphenoxy Donor GroupArticle226Q2Q1173179WOS:000697924600007