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Performance of polymer solar cells with (Alkylsulfanyl)bithiophene copolymers

TitlePerformance of polymer solar cells with (Alkylsulfanyl)bithiophene copolymers
Publication TypePresentazione a Congresso
Year of Publication2015
AuthorsRicciardi, Rosa, Morvillo P., Diana R., Minarini Carla, Mucci A., Parenti F., Tassinari F., and Schenetti F.
Conference NameIET Conference Publications
PublisherInstitution of Engineering and Technology
KeywordsBenzodithiophene, Bithiophenes, Characterization, Heterojunctions, Organic polymers, Photonics, Photovoltaic, Polymer Solar Cells, Polymers, Solar cells, Solar power generation, [70]PCBM

Here we report, the synthesis, the spectroscopic and photovoltaic characterization of two alternating copolymers based on (octylsulfanyl)bithiophene and differently substituted benzodithiophene units (BDT). Bulk heterojunction (BHJ) polymer solar cells (PSCs) having as active layer a blend of these polymers as donor materials and [70]PCBM as acceptor material were prepared and investigated. The geometry of the device is: glass/ITO/PEDOT:PSS/blend/Ca/Al. The electrical performances of the cells were compared in order to study both the influence of the insertion of a benzodithiophene unit in the (alkylsulfanyl)bithiophene backbone and the effect of different substituents on benzodithiophene unit. The best realized device shows a power conversion efficiency of 2.3% under 100 mW/cm2 AM 1.5G illumination.

Citation KeyRicciardi2015