| CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
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Effects of the Molybdenum Oxide/Metal Anode Interfaces on Inverted Polymer Solar Cells |
| WU Jiang, GUO Xiao-Yang, XIE Zhi-Yuan** |
| State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 |
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| Cite this article: |
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WU Jiang, GUO Xiao-Yang, XIE Zhi-Yuan 2012 Chin. Phys. Lett. 29 098801 |
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Abstract Inverted polymer solar cells with molybdenum oxide (MoO3) as an anode buffer layer and different metals (Al or Ag) as anodes are studied. It is found that the inverted cell with a top Ag anode demonstrates enhanced charge collection and higher power conversion efficiency (PCE) compared to the cell with a top Al anode. An 18% increment of PCE is obtained by replacing Al with Ag as the top anode. Further studies show that an interfacial dipole pointing from MoO3 to Al is formed at MoO3/Al interfaces due to electron transfer from Al to MoO3 while this phenomenon cannot be observed at MoO3/Ag interfaces. It is speculated that the electric field at the MoO3/Al interface would hinder hole extraction, and hence reduce the short-circuit current.
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Received: 13 April 2012
Published: 01 October 2012
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| PACS: |
88.40.jr
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(Organic photovoltaics)
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73.40.-c
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(Electronic transport in interface structures)
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[1] Yu G, Gao J, Hummelen J C, Wudl F and Heeger A J 1995 Science 270 1789
[2] Brabec C J, Sariciftci N S and Hummelen J C 2001 Adv. Funct. Mater. 11 15
[3] He Z C, Zhong C M, Huang X, Wong W Y, Wu H B, Chen J W, Su S J and Cao Y 2011 Adv. Mater. 23 4636
[4] Yang J, Zhu R, Hong Z R, He Y J, Kumar A, Li Y F and Yang Y 2011 Adv. Mater. 23 3465
[5] Chu T Y, Lu J P, Beaupre S, Zhang Y G, Pouliot J R, Wakim S, Zhou J Y, Leclerc M, Li Z, Ding J F and Tao Y 2011 J. Am. Chem. Soc. 133 4250
[6] He Z C, Zhang C, Xu X F, Zhang L J, Chen J W, Wu H B and Cao Y 2011 Adv. Mater. 23 3086
[7] de Jong M P, van Ijzendoorn L J and de Voigt M J A 2000 Appl. Phys. Lett. 77 2255
[8] Kim Y H, Lee S H, Noh J and Han S H 2006 Thin Solid Films 510 305
[9] Sahin Y, Alem S, de Bettingnies R and Nunzi J M 2005 Thin Solid Films 476 340
[10] Song M Y, Kim K J and Kim D Y 2005 Sol. Energy Mater. Sol. Cells 85 31
[11] Ameri T, Dennler G, Waldauf C, Denk P, Forberich K, Scharber M C, Brabec C J and Hingerl K 2008 J. Appl. Phys. 103 084506
[12] Liao H H, Chen L M, Xu Z, Li G and Yang Y 2008 Appl. Phys. Lett. 92 173303
[13] Tao C, Ruan S, Zhang X, Xie G, Shen L, Kong X, Dong W, Liu C and Chen W 2008 Appl. Phys. Lett. 93 193307
[14] Waldauf C, Morana M, Denk P, Schilinsky P, Coakley K, Choulis S A and Brabec C J 2006 Appl. Phys. Lett. 89 233517
[15] Steim R, Choulis S A, Schilinsky P and Brabec C J 2008 Appl. Phys. Lett. 92 093303
[16] White M S, Olson D C, Shaheen S E, Kopidakis N and Ginley D S 2006 Appl. Phys. Lett. 89 143517
[17] Hau S K, Yip H L, Baek N S, Zou J, O'Malley K and Jen A K Y 2008 Appl. Phys. Lett. 92 253301
[18] Hau S K, Yip H L, Ma H and Jen A K Y 2008 Appl. Phys. Lett. 93 233304
[19] Tao C, Ruan S, Xie G, Kong X, Shen L, Meng F, Liu C, Zhang X, Dong W and Chen W 2009 Appl. Phys. Lett. 94 043311
[20] Meyer J, Hamwi S, Bulow T, Johannes H H, Riedl T and Kowalsky W 2007 Appl. Phys. Lett. 91 113506
[21] Kr?ger M, Hamwi S, Meyer J, Riedl T, Kowalsky W and Kahn A 2009 Appl. Phys. Lett. 95 123301
[22] Matsushima T, Kinoshita Y and Murata H 2007 Appl. Phys. Lett. 91 253504 |
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