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Article Dans Une Revue Molecules Année : 2020

Push–pull zinc phthalocyanine bearing hexa-tertiary substituted carbazolyl donor groups for dye-sensitized solar cells

Résumé

An asymmetrical, push–pull phthalocyanine bearing bulky tert-butylcarbazolyl moieties as electron donor and carboxylic acid as anchoring group was synthetized and tested as a photosensitizer in dye-sensitized solar cells (DSSC). The new photosensitizer was characterized by 1H and 13C NMR, UV–Vis and mass spectrometry. The bulky tert-butylcarbazolyl moieties avoid the aggregation of the phthalocyanine dye. DFT studies indicate that the HOMO is delocalized throughout the -electron system of the substituted phthalocyanine and the LUMO is located on the core of the molecule with a sizable electron density distribution on carboxyl groups. The new dye has been used as a photosensitizer in transparent and opaque dye-sensitized solar cells, which exhibit poor efficiencies related to a low Jsc
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hal-03183329 , version 1 (27-03-2021)

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Basma Ghazal, Kobra Azizi, Ewies F Ewies, Ahmed S A Youssef, Valid Mwatati Mwalukuku, et al.. Push–pull zinc phthalocyanine bearing hexa-tertiary substituted carbazolyl donor groups for dye-sensitized solar cells. Molecules, 2020, 25 (7), pp.1692. ⟨10.3390/molecules25071692⟩. ⟨hal-03183329⟩
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