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|Title:||Photovoltaic limitations of BODIPY:fullerene based bulk heterojunction solar cells||Authors:||Baran, Derya
Tuladhar, Sachetan M.
Economopoulos, Solon P.
Bradley, Donal D.C.
Brabec, Christoph J.
Choulis, Stelios A.
|Keywords:||BODIPY polymer donors;Organic solar cells;Charge transport;Collection;Fractionation process;Morphology||Category:||Mechanical Engineering||Field:||Engineering and Technology||Issue Date:||1-Apr-2017||Publisher:||Elsevier Ltd||Source:||Synthetic Metals, 2017, Volume 226, Pages 25-30||metadata.dc.doi:||10.1016/j.synthmet.2017.01.006||Abstract:||The photovoltaic performance of blends of a series of 4,4′-Difluoro-4-bora-3a,4a-diaza-s-indacenes)-based (BODIPY) conjugated polymers donors with fullerene electron acceptors is investigated. Despite the high Voc values observed, solar cell device yields relatively low power conversion efficiencies. Our study takes into account the materials’ structure-property relationship, light harvesting capabilities, charge transport, collection properties and morphological characteristics to elucidate factors affecting the photovoltaic performance in this class of polymers. We show that elimination of low molecular weight species and suitable electrodes for hole collection can be used to overcome some of the observed limitations on photovoltaic performance.||URI:||http://ktisis.cut.ac.cy/handle/10488/10045||ISSN:||03796779||Rights:||© 2017 Elsevier B.V.||Type:||Article|
|Appears in Collections:||Άρθρα/Articles|
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