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Thiophene-based copolymers synthesized by electropolymerization for application as hole transport layer in organic solar cells

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dc.contributor.author Triantou, D en
dc.contributor.author Soulis, S en
dc.contributor.author Koureli, S en
dc.contributor.author De Sio, A en
dc.contributor.author Von Hauff, E en
dc.date.accessioned 2014-03-01T11:47:19Z
dc.date.available 2014-03-01T11:47:19Z
dc.date.issued 2012 en
dc.identifier.issn 00218995 en
dc.identifier.uri http://hdl.handle.net/123456789/38125
dc.subject Conducting polymers en
dc.subject Copolymers en
dc.subject Hole transport layer en
dc.subject Polythiophene en
dc.subject Solar cells en
dc.title Thiophene-based copolymers synthesized by electropolymerization for application as hole transport layer in organic solar cells en
heal.type other en
heal.identifier.primary 10.1002/app.37831 en
heal.identifier.secondary http://dx.doi.org/10.1002/app.37831 en
heal.publicationDate 2012 en
heal.abstract Electrically conducting thiophene-based copolymers were synthesized by electropolymerization. The potential range used has a strong influence on the film structure and properties. The extent of oxidation of the copolymers was determined from the ratio of the oxidation to reduction charge, Qox/Qred. The use of wide potential range leads to reduced films, whereas the narrow range leads to partially oxidized films. The copolymers exhibit a characteristic band in UV-vis spectra at ∼ 410 nm, which shifts to higher wavelengths for the more doped material. The electrical conductivity of the copolymers was correlated to their morphology and their structure. The copolymer with higher conductivity is partially reduced, has compact morphology and higher ratio of quinoid to benzenoid rings. The energy gap of the copolymers is reversely proportional to their electrical conductivity. The optical and electrical properties of the copolymers make them very well suited for use as hole transport layers (HTL) in organic opto-electronic devices. We prepared polymer fullerene solar cells with copolymer HTLs. The solar cell performance was tested with very encouraging initial results. © 2012 Wiley Periodicals, Inc. en
heal.journalName Journal of Applied Polymer Science en
dc.identifier.doi 10.1002/app.37831 en


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