Organic dianchor dyes for dye-sensitized solar cells

摘要: Abstract Dye-sensitized solar cells (DSSCs) are executable and dynamic method to convert neat most abundant available energy resource. Organic dyes as sensitizers have found be the important part of govern net performance device. Several designs been exploited achieve high power conversion efficiency (PCE) also understand structure-property relationship. The dianchor architecture is provocative emerging an efficacious strategy produce structural varieties dyes. These structures able enhance light-harvesting capabilities compared that monoanchor due enhanced π-conjugation more effectively binding on semiconductor surface higher electron collection efficiency. Most such prone reduce self-aggregation bulkier molecular design prevent electrolyte-semiconductor interaction thus inhibit dark-current. fascinating properties collectively triggered generate PCEs over congener. This article provides a comprehensive review recent progress dyes, discussing several classes dye-designs tuning dye-sensitized cells. Two major inaugurated flexible geometry fixed geometry, which further categorized into different sub-classes. has six sub-classes in two D-π-A chromophores connected via π-unit or σ-unit at donor (D) part; linked π-spacer donor-acceptor backbone directly π-linker; π-acceptor units shared common arylamine-based part. Fixed divided sub-classes, first sub-class comprises by single (oligothiophene, carbazole, porphyrin any other π-conjugated core) while another class, segments interconnected saturated carbon spiro linkage.