Synthesis of a novel unsymmetrical Zn(II) phthalocyanine bearing a phenyl ethynyl moiety as sensitizer for dye-sensitized solar cells

Gloria Zanotti; Nicola Angelini; Anna Maria Paoletti; Giovanna Pennesi; Gentilina Rossi; Aldo Amore Bonapasta; Giuseppe Mattioli; Aldo Di Carlo; Thomas M. Brown; Angelo Lembo; Andrea Reale

doi:10.1039/C0DT01292K

Synthesis of a novel unsymmetrical Zn(ii) phthalocyanine bearing a phenyl ethynyl moiety as sensitizer for dye-sensitized solar cells†

Gloria Zanotti,^b Nicola Angelini,^a Anna Maria Paoletti,^a Giovanna Pennesi,^a Gentilina Rossi,*^a Aldo Amore Bonapasta,^a Giuseppe Mattioli,^a Aldo Di Carlo,^b Thomas M. Brown,^b Angelo Lembo^b and Andrea Reale^b

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* Corresponding authors

^a CNR, Istituto Struttura della Materia, Via Salaria Km. 29.5, Monterotondo Stazione, Roma, Italy
E-mail: gentilina.rossi@ism.cnr.it

^b Center for Hybrid and Organic Solar Energy (CHOSE), Università di “Tor Vergata”, Via G. Peroni 400/402, Roma, Italy

Abstract

A new unsymmetrical zinc phthalocyanine sensitizer has been synthesised. The anchoring of the molecule to nanocrystalline TiO₂ films is realised by a carboxylic group connected to a phenyl ethynyl moiety. Density Functional Theory (DFT) calculations show significant and positive effects of such a functionalization. Electron injection into the semiconductor and photocurrent generation in DSSC are also presented.

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Synthesis of a novel unsymmetrical Zn(ii) phthalocyanine bearing a phenyl ethynyl moiety as sensitizer for dye-sensitized solar cells†

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Synthesis of a novel unsymmetrical Zn(II) phthalocyanine bearing a phenyl ethynyl moiety as sensitizer for dye-sensitized solar cells

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