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Dye-sensitized solar cells based on a push-pull zinc phthalocyanine bearing diphenylamine donor groups: computational predictions face experimental reality
Department of Information Engineering, University of Brescia, Brescia, Italy; CNR-INO SENSOR Laboratory, Brescia, Italy; Schulich Faculty of Chemistry, Technion−Israel Institute of Technology, Haifa, Israel .
Department of Information Engineering, University of Brescia, Brescia, Italy; Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, P. R. China; Institut National de la Recherche Scientifique, Centre Énergie, Matériaux et Télécommunications, Varennes, Canada.
Institute of Molecular Science and Technology, ISTM-CNR, Milano, Italy .
Institute of Molecular Science and Technology, ISTM-CNR, Milano, Italy .
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2017 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 7, 15675Article in journal (Refereed) Published
Abstract [en]

Computational studies have suggested that the integration of secondary amine as donor groups in the structure of unsymmetrical zinc phthalocyanine (ZnPc) should have positive effects on photovoltaic performance, once the molecule is integrated as light harvester in dye sensitized solar cells (DSSCs). Aiming at obtaining experimental confirmation, we synthesized a peripherally substituted push-pull ZnPc bearing three electron donating diphenylamine substituents and a carboxylic acid anchoring group and integrated it as sensitizer in TiO2-based DSSCs. Detailed functional characterization of solar energy converting devices resulted in ruling out the original hypothesis. The causes of this discrepancy have been highlighted, leading to a better understanding of the conditions for an effective design of push-pull diarylamino substituted ZnPcs for DSSCs.

Place, publisher, year, edition, pages
Nature Publishing Group, 2017. Vol. 7, 15675
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Experimental physics
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URN: urn:nbn:se:ltu:diva-66626DOI: 10.1038/s41598-017-15745-3ISI: 000415266100024PubMedID: 29142212Scopus ID: 2-s2.0-85034445753OAI: oai:DiVA.org:ltu-66626DiVA: diva2:1158104
Note

Validerad;2017;Nivå 2;2017-11-17 (svasva)

Available from: 2017-11-17 Created: 2017-11-17 Last updated: 2017-12-08Bibliographically approved

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