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Title: Effect of electron-transport polymer addition to polymer/fullerene blend solar cells
Authors: Choulis, Stelios A. 
Kim, Youngkyoo 
Cook, Steffan 
Keywords: Solar cells;Absorption;Fullerenes;Heterojunctions;Lighting
Issue Date: 2005
Publisher: Elsevier
Source: Synthetic metals, 2005, Volume 152, Issues 1–3, Pages 105–108
Abstract: We report on a study of the effect of device annealing on the performance of bulk heterojunction organic solar cells made from a ternary blend of poly(3-hexylthiophene) (P3HT), [6,6]-phenyl C 61-butyric acid methyl ester (PCBM) and poly(9,9-dioctylfluorene-co-benzothiadiazole) (F8BT). Photovoltaic device characteristics before and after annealing were measured under air mass 1.5 simulated solar illumination (100 mW/cm 2). Annealing times up to ∼15 min resulted in a sharp increase in short circuit current density and power conversion efficiency, with more gradual improvements upon further annealing. This performance improvement is attributed partly to enhanced optical absorption and partly to improved charge collection, which may result from enhanced charge carrier mobilities
ISSN: 0379-6779
Rights: © 2005 Published by Elsevier B.V.
Type: Article
Appears in Collections:Άρθρα/Articles

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