Improving the performance of organic solar cells using an electron transport layer of B4PyMPM self-assembled nanostructures

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• 作者：Chan-Hyuk Ji ; Il-Soo Oh ; Se-Young Oh
• 关键词：organic photovoltaic cell ; n ; type buffer layer ; self ; organization ; exciton dissociation ; impedance spectroscopy
• 刊名：Electronic Materials Letters
• 出版年：2015
• 出版时间：September 2015
• 年：2015
• 卷：11
• 期：5
• 页码：795-800
• 全文大小：759 KB
• 参考文献：1.N. S. Sariciftci, L. Smilowitz, A. J. Heeger, and F. Wudl, Science 258, 1474 (1992).CrossRef
  2.S. H. Park, A. Roy, S. Beaupre, S. Cho, N. Coates, J. S. Moon, D. Moses, M. Leclerc, K. Lee, and A. J. Heeger, Nat. Photonics 3, 297 (2009).CrossRef
  3.F. C. Krebs, Sol. Energy Mater. Sol. Cells. 93, 394 (2009).CrossRef
  4.G. Li, R. Zhu, and Y. Yang, Nat. Photonics 6, 153 (2012).CrossRef
  5.L. Dou, J. You, J. Yang, C.-C. Chen, Y. He, S. Murase, T. Moriarty, K. Emery, G. Li, and Y. Yang, Nat. Photonics 6, 180 (2012).CrossRef
  6.Y. M. Sun, G. C. Welch, W. L. Leong, C. J. Takacs, G. C. Bazan, and A. J. Heeger, Nat. Mater. 11, 44 (2012).CrossRef
  7.M. A. Green, K. Emery, Y. Hishikawa, W. Warta, and E. D. Dunlop, Prog. Photovoltaics 21, 1 (2013).CrossRef
  8.K. Vandewal, K. Tvingstedt, A. Gadisa, O. Inganas, and J. V. Manca, Nat. Mater. 8, 904 (2009).CrossRef
  9.Y. B. Yuan, T. J. Reece, P. Sharma, S. Poddar, S. Ducharme, A. Gruverman, Y. Yang, and J. S. Huang, Nat. Mater. 10, 296 (2011).CrossRef
  10.D. Veldman, S. C. J. Meskers, and R. A. J. Janssen, Adv. Funct. Mater. 19, 1939 (2009).CrossRef
  11.M. Graetzel, R. A. J. Janssen, D. B. Mitzi, and E. H. Sargent, Nature 488, 304 (2012).CrossRef
  12.L. J. Pegg and R. A. Hatton, ACS Nano 6, 4722 (2012).CrossRef
  13.Y. H. Zhou, C. Fuentes-Hernandez, J. Shim, J. Meyer, A. J. Giordano, H. Li, P. Winget, T. Papadopoulos, H. Cheun, J. Kim, M. Fenoll, A. Dindar, W. Haske, E. Najafabadi, T. M. Khan, H. Sojoudi, S. Barlow, S. Graham, J. L. Bredas, S. R. Marder, A. Kahn, and B. Kippelen, Science 336, 327 (2012).CrossRef
  14.Y. B. Yuan, P. Sharma, Z. G. Xiao, S. Poddar, A. Gruverman, S. Ducharme, and J. S. Huang, Energy Environ. Sci. 5, 8558 (2012).CrossRef
  15.D. Yokoyama, H. Sasabe, Y. Furukawa, C. Adachi, and J. Kido, Adv. Funct. Mater. 21, 1375 (2011).CrossRef
  16.D. G. Johnson, M. P. Niemczyk, D. W. Minsek, G. P. Wiederrecht, W. A. Svec, G. L. Gaines, and M. R. Wasielewski, J. Am. Chem. Soc. 115, 5692 (1993).CrossRef
  17.Z. C. Wang, C. J. Medforth, and J. A. Shelnutt, J. Am. Chem. Soc. 126, 15954 (2004).CrossRef
  18.H. Hoppe and N. S. Sariciftci, J. Mater. Chem. 16, 45 (2006).CrossRef
  19.S.-G. Chen, P. Stradins, and B. A. Gregg, J. Phys. Chem. B 109, 13451 (2005).CrossRef
  20.G. M. Kim, I. S. Oh, A. N. Lee, and S. Y. Oh, J. Mater. Chem. A 2, 10131 (2014).CrossRef
  21.H. Sasabe, D. Tanaka, D. Yokoyama, T. Chiba, Y.-J. Pu, K.-I. Nakayama, M. Yokoyama, and J. Kido, Adv. Funct. Mater. 21, 336 (2011).CrossRef
  22.D. Yokoyama, J. Mater. Chem. 21, 19187 (2011).CrossRef
  23.Z. C. He, C. M. Zhong, X. Huang, W. Y. Wong, H. B. Wu, L. W. Chen, S. J. Su, and Y. Cao, Adv. Mater. 23, 4636 (2011).CrossRef
  24.H. Zhou, Y. Zhang, J. Seifter, S. D. Collins, C. Luo, G. C. Bazan, T. Q. Nguyen, and A. J. Heeger, Adv. Mater. 25, 1646 (2013).CrossRef
  25.Z. Xu, L.-M. Chen, M.-H. Chen, G. Li, and Y. Yang, Appl. Phys. Lett. 95, 013301 (2009).CrossRef
  26.B. Ecker, J. C. Nolasco, J. Pallares, L. F. Marsal, J. Posdorfer, J. Parisi, and E. von Hauff, Adv. Funct. Mater. 21, 2705 (2011).CrossRef
  27.J. Bisquert, F. Fabregat-Santiago, I. Mora-Sero, G. Garcia-Belmonte, and S. Gimenez, J. Phys. Chem. C 113, 17278 (2009).CrossRef
  28.B. J. Leever, C. A. Bailey, T. J. Marks, M. C. Hersam, and M. F. Durstock, Adv. Energy Mater. 2, 120 (2012).CrossRef
  29.S. Ochiai, P. Kumar, K. Santhakumar, and P.-K. Shin, Electron. Mater. Lett. 9, 399 (2013).CrossRef
  30.I. S. Oh, G. M. Kim, S. H. Han, and S. Y. Oh, Electron. Mater. Lett. 9, 375 (2013).CrossRef
  
• 作者单位：Chan-Hyuk Ji (1)
  Il-Soo Oh (1)
  Se-Young Oh (1)
  
  1. Department of Chemical & Biomolecular Engineering, Sogang University, Seoul, 121-742, Korea
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Condensed Matter Physics
  Electronics, Microelectronics and Instrumentation
  Optical and Electronic Materials
  Thermodynamics
  Characterization and Evaluation of Materials
  
• 出版者：The Korean Institute of Metals and Materials, co-published with Springer Netherlands
• ISSN：2093-6788

文摘

The electron transport (ETL) layer improves power conversion efficiency (PCE) in organic photovoltaic cells (OPVs) through the incorporation of the cathode interfacial layers. Here, we introduce [bis-4,6-(3,5-di-4-pyridylphenyl)-2-methylpyrimidine] (B4PyMPM) as an n-type buffer layer consisting of a self-organized layer with a horizontal configuration in bulk heterojunction OPVs. It is demonstrated that self-organization of this B4PyMPM compound in which molecules adopt a horizontal orientation parallel to the organic semiconducting substrate induces a large local interfacial electric field that results in a significant enhancement of exciton dissociation. The device using B4PyMPM as an ETL layers has a significantly high open circuit voltage (V _oc = 0.64 V), good short circuit current (J _sc = 8.24 mA/cm2), good fill factor (FF = 0.65) and good PCE (3.42%). The physical properties of the device have also been studied from the measurements of impedance spectroscopy and photocurrent, which directly show the mechanisms occurring inside OPVs.