Interfacial Morphology and Effects on Device Performance of Organic Bilayer Heterojunction Solar Cells
作者： Michael Zawodzki , Roland Resel , Michele Sferrazza , Olivia Kettner , Bettina Friedel
关键词: Crystallinity 、 Energy conversion efficiency 、 Nanotechnology 、 Glass transition 、 Polymer 、 Annealing (metallurgy) 、 Chemical engineering 、 Bilayer 、 Solar cell 、 Heterojunction 、 Materials science
摘要: The effects of interface roughness between donor and acceptor in a bilayer heterojunction solar cell were investigated on polymer–polymer system based poly(3-hexylthiophene) (P3HT) poly(dioctylfluorene-alt-benzothiadiazole) (F8BT). Both polymers are known to reorganize into semicrystalline structures when heated above their glass-transition temperature. Here, the bilayers thermally annealed below glass transition bulk (≈140 °C) at temperatures 90, 100, 110 °C for time periods from 2 min up 250 min. No change crystallinity could be observed those temperatures. However, X-ray reflectivity device characteristics reveal coherent trend upon heat treatment. In investigations, an increasing two is as function temperature annealing time, value 1 nm. Simultaneously, according devices show 80% increase power conversion efficiency (PCE) short p...
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Peter M ller-Buschbaum, Dewetting and pattern formation in thin polymer films as investigated in real and reciprocal space Journal of Physics: Condensed Matter. ,vol. 15, ,(2003) , 10.1088/0953-8984/15/36/201
Anthony M. Higgins, Simon J. Martin, Paul C. Jukes, Mark Geoghegan, Richard A. L. Jones, Sean Langridge, Robert Cubitt, Stephan Kirchmeyer, Anja Wehrum, Ilaria Grizzi, Interfacial structure in semiconducting polymer devices Journal of Materials Chemistry. ,vol. 13, pp. 2814- 2818 ,(2003) , 10.1039/B304990F
Carrie L. Donley, Jana Zaumseil, Jens W. Andreasen, Martin M. Nielsen, Henning Sirringhaus, Richard H. Friend, Ji-Seon Kim, Effects of Packing Structure on the Optoelectronic and Charge Transport Properties in Poly(9,9-di-n-octylfluorene-alt-benzothiadiazole) Journal of the American Chemical Society. ,vol. 127, pp. 12890- 12899 ,(2005) , 10.1021/JA051891J
Anne M. Mayes, Glass Transition of Amorphous Polymer Surfaces Macromolecules. ,vol. 27, pp. 3114- 3115 ,(1994) , 10.1021/MA00089A033
Bettina Friedel, Christopher R. McNeill, Neil C. Greenham, Influence of Alkyl Side-Chain Length on the Performance of Poly(3-alkylthiophene)/Polyfluorene All-Polymer Solar Cells Chemistry of Materials. ,vol. 22, pp. 3389- 3398 ,(2010) , 10.1021/CM100189T
V.D. Mihailetchi, J.K.J. van Duren, P.W.M. Blom, J.C. Hummelen, R.A.J. Janssen, J.M. Kroon, M.T. Rispens, W.J.H. Verhees, M.M. Wienk, Electron transport in a methanofullerene Advanced Functional Materials. ,vol. 13, pp. 43- 46 ,(2003) , 10.1002/ADFM.200390004
Shin Kawana, Richard A. L. Jones, Character of the glass transition in thin supported polymer films. Physical Review E. ,vol. 63, pp. 021501- ,(2001) , 10.1103/PHYSREVE.63.021501
Markus Neuschitzer, Armin Moser, Alfred Neuhold, Johanna Kraxner, Barbara Stadlober, Martin Oehzelt, Ingo Salzmann, Roland Resel, Jiří Novák, Grazing-incidence in-plane X-ray diffraction on ultra-thin organic films using standard laboratory equipment Journal of Applied Crystallography. ,vol. 45, pp. 367- 370 ,(2012) , 10.1107/S0021889812000908
S. Huettenbach, M. Stamm, G. Reiter, M. Foster, The interface between two strongly incompatible polymers : interfacial broadening and roughening near Tg Langmuir. ,vol. 7, pp. 2438- 2442 ,(1991) , 10.1021/LA00059A007
Nir Stein, Roman Korobko, Omer Yaffe, Rotem Har Lavan, Hagay Shpaisman, Einat Tirosh, Ayelet Vilan, David Cahen, Nondestructive Contact Deposition for Molecular Electronics: Si-Alkyl//Au Junctions Journal of Physical Chemistry C. ,vol. 114, pp. 12769- 12776 ,(2010) , 10.1021/JP104130W