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このアイテムの引用には次の識別子を使用してください: http://hdl.handle.net/10119/9844

タイトル: Increase in open-circuit voltage and improved stability of organic solar cells by inserting a molybdenum trioxide buffer layer
著者: Murata, Hideyuki
Kinoshita, Yoshiki
Kanai, Yoshihiro
Matsushima, Toshinori
Ishii, Yuya
キーワード: 5,10,15,20-tetraphenylporphyrine
Molybdenum Trioxide
Organic Solar Cells
open-circuit voltage
power conversion efficiency
発行日: 2009
出版者: Materials Research Society
誌名: Materials Research Society Symposium Proceedings
巻: 1154
開始ページ: 1154-B10-73
抄録: We report an increase in open-circuit voltage (V_<oc>) by inserting an MoO_3 layer on ITO substrate to improve built-in potential of organic solar cells (OSCs). In the OSCs using 5,10,15,20-tetraphenylporphyrine (H_2TPP) as p-type material and C_<60> as n-type material, the V_<oc> effectively increased from 0.57 to 0.97 V with increasing MoO_3 thickness. The obtained highest V_<oc> (0.97 V) is consistent with the theoretical value estimated from the energy difference between the LUMO (-4.50 eV) of C_<60> and the HOMO (-5.50 eV) of H_2TPP layer. Importantly, the enhancement in the V_<oc> was achieved without affecting the short-circuit current density (J_<sc>) and the fill-factor (FF). Thus, the power conversion efficiency of the device increased linearly from 1.24% to 1.88%. We also demonstrated that a MoO_3 buffer layer enhances the stability of OSCs after photo-irradiation. We have investigated the stability of OSCs using H_2TPP and N,N’-di(1-naphthyl)-N,N’-diphenylbenzidine as p-type layer. Both devices with MoO_3 layer showed improved stability. These results clearly suggest that the interface between ITO and p-type layeraffects device stability.
Rights: Copyright (C) 2009 Materials Research Society. It is posted here by permission of the Materials Research Society. Hideyuki Murata, Yoshiki Kinoshita, Yoshihiro Kanai, Toshinori Matsushima and Yuya Ishii, Materials Research Society Symposium Proceedings, 1154, 2009, 1154-B10-73. http://www.mrs.org/
URI: http://hdl.handle.net/10119/9844
資料タイプ: publisher
出現コレクション:c11-1. 会議発表論文 (Conference Papers)

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