New heteroleptic benzimidazole functionalized Ru-sensitizer showing the highest efficiency for dye-sensitized solar cells

Swetha, T.; Niveditha, S.; Bhanuprakash, K.; Islam, Ashraful; Li, Han; Bedja, Idriss; Fallahpour, Reza; Singh, Surya Prakash

doi:10.1016/j.inoche.2014.10.033

Cited by 14 publications

(2 citation statements)

References 58 publications

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“…A bidentate benzimidazole was tested by Swetha et al [ 147 ] as ancillary ligand in a Ru complex with tctpy, showing blueshifted absorption and a higher molecular extinction coefficient in the high energy region of the solar spectrum with respect to N749, which accounted for a better IPCE in the 400–640 nm range and a 6.07% efficiency ( 46 , Figure 37 ; dye: 0.3 mM CH 3 CN / n -butanol 1:1 with 20 mM DCA, electrolyte: 0.5 M DMPII, 0.05 M I 2 , 0.1 M LiI CH 3 CN / butanol 1:1).…”

Section: Modifications Of Black Dye and Structure-properties Relatmentioning

confidence: 99%

Terpyridine and Quaterpyridine Complexes as Sensitizers for Photovoltaic Applications

et al. 2016

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Terpyridine and quaterpyridine-based complexes allow wide light harvesting of the solar spectrum. Terpyridines, with respect to bipyridines, allow for achieving metal-complexes with lower band gaps in the metal-to-ligand transition (MLCT), thus providing a better absorption at lower energy wavelengths resulting in an enhancement of the solar light-harvesting ability. Despite the wider absorption of the first tricarboxylate terpyridyl ligand-based complex, Black Dye (BD), dye-sensitized solar cell (DSC) performances are lower if compared with N719 or other optimized bipyridine-based complexes. To further improve BD performances several modifications have been carried out in recent years affecting each component of the complexes: terpyridines have been replaced by quaterpyridines; other metals were used instead of ruthenium, and thiocyanates have been replaced by different pinchers in order to achieve cyclometalated or heteroleptic complexes. The review provides a summary on design strategies, main synthetic routes, optical and photovoltaic properties of terpyridine and quaterpyridine ligands applied to photovoltaic, and focuses on n-type DSCs.

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Section: Modifications Of Black Dye and Structure-properties Relatmentioning

confidence: 99%

Terpyridine and Quaterpyridine Complexes as Sensitizers for Photovoltaic Applications

et al. 2016

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“…Based on these properties, many researchers have designed and synthesized various photosensitizers, including metal complexes, [17][18][19][20][21] porphyrins, phthalocyanines and metal free organic dyes [22][23][24][25] for DSSC applications in the past few decades. In particular, ruthenium complexes possess superior photovoltaic performances compared to other metal complexes.…”

Section: Introductionmentioning

confidence: 99%