The Influence of Substituent Orientation on the Photovoltaic Performance of Phthalocyanine-Sensitized Solar Cells
Entidad
UAM. Departamento de Química OrgánicaEditor
Wiley-VCH VerlagFecha de edición
2016-03-18Cita
10.1002/chem.201600166
Chemistry - A European Journal 22.13 (2016): 4369-4373
ISSN
0947-6539 (print); 1521-3765 (online)DOI
10.1002/chem.201600166Financiado por
Financial support from the European Union (FP7-ENERGY-2012- 1 framework, GLOBASOL project, Proposal No 309194-2), from the Spanish MINECO (CTQ2014-52869-P), Comunidad de Madrid (FOTOCARBON S2013/MIT-2841), and MECD (F.P.U. fellowship to L.T.) is gratefully acknowledgedProyecto
info:eu-repo/grantAgreement/EC/FP7/309194-2; Gobierno de España. CTQ2014-52869-P; Comunidad de Madrid. S2013/MIT-2841/FOTOCARBONVersión del editor
http://dx.doi.org/10.1002/chem.201600166Materias
Near-IR dyes; Panchromatic sensitization; Phthalocyanines; Solar cells; Substituent effect; QuímicaNota
This is the peer reviewed version of the following article:Chemistry - A European Journal 22.13 (2016): 4369-4373, which has been published in final form at http://dx.doi.org/10.1002/chem.201600166. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-ArchivingDerechos
© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, WeinheimResumen
Phthalocyanines (Pcs) are used as sensitizers in dye-sensitized solar cells (DSSCs) because of their stability and intense absorption in the red and near-IR regions. Impressive progress has been made in photovoltaic efficiencies by introduction of bulky peripheral substituents to help suppress macrocycle aggregation. To reach benchmark efficiencies reported for other related dyes, new designs need to be explored. Single carboxy-ZnPc regioisomers substituted at the non-peripheral positions by rigid aryl groups have now been studied, which has shed light on the influence of steric hindrance and/or orientation of the substituent around the anchoring group on the photovoltaic response. The regioisomer bearing the aryl group far away from the anchoring group produces a more effective sensitization of the TiO2 films and higher short-circuit photocurrent density (Jsc). Taking advantage of the good photovoltaic performance in the near-IR region of this ZnPc, it was combined with another appropriate dye for panchromatic sensitization of the mesoporous photoelectrode and an increase of the overall device efficiency
Lista de ficheros
Google Scholar:Tejerina, Lara
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Martínez Díaz, Victoria
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Nazeeruddin, Mohammad Khaja
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Torres Cebada, Tomás
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