Bicyclic 5-6 Systems: Four Heteroatoms 3:1

Barbero, Héctor; Díez-Poza, Carlos; Fernández‐Peña, Laura; Barbero, Asunción

doi:10.1016/b978-0-12-409547-2.14894-2

Cited by 1 publication

(1 citation statement)

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“…Similar to the Suzuki-Miyaura cross coupling, the Stille cross coupling has also found extensive application and versatility in transition metal-catalyzed reactions for the construction of a variety of conjugated polymers and organic compounds through the formation of C(sp 2 )-C(sp 2 ) bonds [90]. This reaction involves coupling between aryl stanners species with organic electrophiles such as aryl halide in the presence of palladium, Pd (0), as a catalyst (Scheme 11) [91,92]. The success and widespread use of this reaction is attributed to the mild reagents of organotin, which are well matched with a diverse number of functional groups [93,94].…”

Section: Stille Cross-coupling Reactionmentioning

confidence: 99%

π-Conjugated Polymers and Their Application in Organic and Hybrid Organic-Silicon Solar Cells

et al. 2022

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The evolution and emergence of organic solar cells and hybrid organic-silicon heterojunction solar cells have been deemed as promising sustainable future technologies, owing to the use of π-conjugated polymers. In this regard, the scope of this review article presents a comprehensive summary of the applications of π-conjugated polymers as hole transporting layers (HTLs) or emitters in both organic solar cells and organic-silicon hybrid heterojunction solar cells. The different techniques used to synthesize these polymers are discussed in detail, including their electronic band structure and doping mechanisms. The general architecture and principle of operating heterojunction solar cells is addressed. In both discussed solar cell types, incorporation of π-conjugated polymers as HTLs have seen a dramatic increase in efficiencies attained by these devices, owing to the high transmittance in the visible to near-infrared region, reduced carrier recombination, high conductivity, and high hole mobilities possessed by the p-type polymeric materials. However, these cells suffer from long-term stability due to photo-oxidation and parasitic absorptions at the anode interface that results in total degradation of the polymeric p-type materials. Although great progress has been seen in the incorporation of conjugated polymers in the various solar cell types, there is still a long way to go for cells incorporating polymeric materials to realize commercialization and large-scale industrial production due to the shortcomings in the stability of the polymers. This review therefore discusses the progress in using polymeric materials as HTLs in organic solar cells and hybrid organic-silicon heterojunction solar cells with the intention to provide insight on the quest of producing highly efficient but less expensive solar cells.

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