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Title: Photovoltaic limitations of BODIPY:fullerene based bulk heterojunction solar cells
Authors: Baran, Derya 
Tuladhar, Sachetan M. 
Economopoulos, Solon P. 
Neophytou, Marios 
Savva, Achilleas 
Itskos, Grigorios 
Othonos, Andreas 
Bradley, Donal D.C. 
Brabec, Christoph J. 
Nelson, Jenny 
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
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.
ISSN: 03796779
Rights: © 2017 Elsevier B.V.
Type: Article
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