Novel organic dyes based on phenyl-substituted benzimidazole for dye sensitized solar cells

Optical Sensing (Nano)Materials Based on Benzimidazole Derivatives

“…Heterocyclic chromophores and fluorophores are the most investigated classes of optical sensing molecules; hence, the interest for benzimidazole as a structural block of novel molecular systems is constantly increasing. Although benzimidazole derivatives are primarily known as biologically and therapeutically active substances [1], such heteroaromatic molecules have structure-related properties that enable a variety of applications in optoelectronics and non-linear optics (NLO) [2,3], photovoltaics [4,5], sensing [6] and bioimaging [7,8]. Indeed, multifunctionality of the benzimidazole unit, such as electron accepting ability, π-bridging, chromogenic pH sensitivity/switching and metal-ion chelating properties, makes it an exceptional structural candidate for the design of optical chemical sensors [9,10].…”

Development of Ruthenium Complex Based Sensitizers, Organic Based Sensitizers, and Co-sensitization System for Dye-sensitized Solar Cells

“…The benzimidazole group is a strong electron withdrawing group to improve the electron injection ability in the sensitization process. Methoxy-(dye 38) and N, Ndimethylamino-(dye 39) attached diphenyl-substituted benzimidazole organic sensitizers were synthesized and exhibited prolonged decay times in fluorescence [42]. The cell efficiency could be enhanced by attaching the methoxy moiety instead of the N, N-dimethylamine group, which may hamper the charge recombination process.…”

“…(Copyright (2015) Elsevier); dye 37, reproduced with permission from Ref [41]. (Copyright (2017) Elsevier); dye 38 and dye 39, reproduced with permission from Ref [42]. (Copyright (2015) Elsevier); dye 40, reproduced with permission from Ref [43].…”

Introductory Chapter: Short Insight in Synthesis and Applications of Benzimidazole and Its Derivatives

“…Other authors have shown that benzimidazole is a versatile and essential chromophore for organic dyes with photophysical, electrochemical, and photovoltaic properties due to the position of donors, acceptors, and π-linkers in the benzene ring [59]. A broad range of nuances in watercolor painting and electrophotographic developer toner has been made over three decades using benzimidazol-2-one derivatives, highly appreciated for their durability and light resistance [36].…”