Ultrathin polythiophene films on an intrinsically conducting polymer electrode: Charge transfer induced valence states and interface dipoles

Organic Electronics

Volumn 12, Issue 6, 2011, Pages 916-922

  Frisch, J ^a   Vollmer, A ^b   Rabe, J P ^a   Koch, N ^a,b  

^a HUMBOLDT UNIVERSITY   (Germany)

^b HAHN MEITNER INSTITUT   (Germany)

Author keywords

Conductive polymer; Conjugated polymer; Energy level alignment; Photoemission

Indexed keywords

BINDING ENERGY; CHARGE TRANSFER; CONDUCTING POLYMERS; CONDUCTIVE FILMS; CONJUGATED POLYMERS; ELECTRODES; INTERFACES (MATERIALS); MONOLAYERS; MULTILAYERS; PHOTOEMISSION; POLYMER FILMS; THICK FILMS; ULTRATHIN FILMS; ULTRAVIOLET PHOTOELECTRON SPECTROSCOPY;

CONDUCTIVE POLYMER; ENERGY LEVEL ALIGNMENT; INTRINSICALLY CONDUCTING POLYMER; POLY(STYRENE SULFONATE); POLY-3-HEXYLTHIOPHENE; POLYETHYLENEDIOXYTHIOPHENE; POLYTHIOPHENE FILMS; SEMICONDUCTOR POLYMERS;

INTERFACE STATES;

EID: 79953258566     PISSN: 15661199     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.orgel.2011.03.005     Document Type: Article

References (34)

1. S. Braun, W.R. Salaneck, and M. Fahlman Energy-level alignment at organic/metal and organic/organic interfaces Adv. Mater. 21 2009 1450 1472
2. W.R. Salaneck, S. Stafstrom, and J.L. Brdas Conjugated Polymer Surfaces and Interfaces: Electronic and Chemical Structure of Interfaces for Polymer Light Emitting Devices 1996 Cambridge University Press
3. H. Ishii, K. Sugiyama, E. Ito, and K. Seki Energy level alignment and interfacial electronic structures at organic/metal and organic/organic interfaces Adv. Mater. 11 1999 605 625 (Pubitemid 129675481)
4. I.G. Hill, A.J. Makinen, and Z.H. Kafaf Distinguishing between interface dipoles and band bending at metal/tris-(8-hydroxyquinoline) aluminium interfaces Appl. Phys. Lett. 77 2000 1825 1827
5. A. Kahn, N. Koch, and W. Gao Electronic structure and electrical properties of interfaces between and π-conjugated molecular films J. Polym. Sci. Part B: Polym. Phys. 41 2003 2529 2548
6. G.M. Ranger, O.T. Hoffmann, L. Romaner, G. Heimel, B. Bröker, R.-P. Blum, R.L. Johnson, N. Koch, and E. Zojer F4TCNQ on Cu, Ag, and Au as prototypical example for a strong organic acceptor on coinage metals Phys. Rev. B 79 2009 165306
7. A.J. Cascio, J.E. Lyon, M.M. Beerbom, R. Schlaf, Y. Zhu, and S.A. Jenekhe Investigation of a polythiophene interface using photoemission spectroscopy in combination with electrospray thin-film deposition Appl. Phys. Lett. 88 2006 062104
8. A.D. Schlüter, and J.P. Rabe Dendronized polymers: synthesis, characterization, assembly at interfaces, and manipulation Angew. Chem. Int. Ed. 39 2000 864
9. S.S. Sheiko, and M. Möller Visualization of macromolecules - A first step to manipulation and controlled response Chem. Rev. 101 2001 4099
10. N. Severin, I.M. Okhapkin, A.R. Khokhlov, and J.P. Rabe Adsorption of polyelectrolyte molecules to a nanostructured monolayer of amphiphiles Nano Lett. 6 2006 1018
11. N. Kiriy, E. Jähne, H.-J. Adler, M. Schneider, A. Kiriy, G. Gorodyska, S. Minko, D. Jehnichen, P. Simon, A.A. Fokin, and M. Stamm One-dimensional aggregation of regioregular polyalkylthiophenes Nano Lett. 3 2003 707
12. J. Hwang, E.-G. Kim, J. Liu, J.-L. Bredas, A. Duggal, and A. Kahn Photoelectron spectroscopic study of the electronic band structure of polyfluorene and fluorene-arylamine copolymers at interfaces J. Phys. Chem. C 111 2007 1378 1384 (Pubitemid 46347084)
13. H. Ishii, N. Hayashi, E. Ito, Y. Washizu, K. Sugi, Y. Kimura, M. Niwano, Y. Ouchi, and K. Seki Kelvin probe study of band bending at organic semiconductor/metal interfaces: examination of Fermi level alignment Phys. Stat. Sol. (a) 201 2004 1075 1094
14. P.J. Cumpson Estimation of inelastic mean free paths for polymers and other organic materials: use of quantitative structure-property relationships Surf. Interface Anal. 31 2001 23 34 (Pubitemid 32189087)
15. N. Koch, and A. Vollmer Electrode-molecular semiconductor contacts: work-function-dependent hole injection barriers versus Fermi-level pinning Appl. Phys. Lett. 89 2006 162107
16. W.R. Salaneck, O. Inganäs, B. Thémans, J.O. Nilsson, B. Sjögren, J.-E. Österholm, J.L. Brdas, and S. Svensson Thermochromism in poly(3-hexylthiophene) in the solid state: a spectroscopic study of temperature-dependent conformational defects J. Chem. Phys. 89 1988 4613 4619
17. A. Crispin, X. Crispin, M. Fahlman, M. Berggren, and W.R. Salaneck Transition between energy level alignment regimes at a low band gap polymer-electrode interfaces Appl. Phys. Lett. 89 2006 213503
18. N. Koch Organic electronic devices and their functional interfaces ChemPhysChem 8 2007 1438 1455
19. J.-L. Brdas, D. Beljonne, V. Coropceanu, and J. Cornil Charge-transfer and energy-transfer processes in π-conjugated oligomers and polymers: a molecular picture Chem. Rev. 104 2004 4971 5004
20. C. Tengstedt, W. Osikowicz, W.R. Salaneck, I.D. Parker, C.-H. Hsu, and M. Fahlman Fermi-level pinning at conjugated polymer interfaces Appl. Phys. Lett. 88 2006 053502
21. S. Rentenberger, A. Vollmer, E. Zojer, R. Schennach, and N. Koch UV/ozone treated Au for air-stable, low hole injection barrier electrodes in organic electronics J. Appl. Phys. 100 2006 053701
22. S. Braun, W.R. Salaneck, and M. Fahlman Energy-level alignment at organic/metal and organic/organic interfaces Adv. Mater. 21 2009 1450 1472
23. N. Koch, A. Elschner, J. Rabe, and R. Johnson Work function independent hole-injection barriers between pentacene and conducting polymers Adv. Mater. 17 2005 330 335 (Pubitemid 40320155)
24. T. Sueyoshi, H. Fukagawa, M. Ono, S. Kera, and N. Ueno Low-density band-gap states in pentacene thin films probed with ultrahigh-sensitivity ultraviolet photoelectron spectroscopy Appl. Phys. Lett. 95 2009 183303
25. T. Shimada, K. Hamaguchi, A. Koma, and F.S. Ohuchi Electronic structures at the interfaces between copper phthalocyanine and layered materials Appl. Phys. Lett. 72 1998 1869
26. R. Schlaf, C.D. Merritt, L.A. Crisafulli, and Z.H. Kafafi Organic semiconductor interfaces: discrimination between charging and band bending related shifts in frontier orbital line-up measurements with photoemission spectroscopy J. Appl. Phys. 86 1999 5678
27. J.X. Tang, K.M. Lau, C.S. Lee, and S.T. Lee Substrate effects on the electronic properties of an organic/organic heterojunction Appl. Phys. Lett. 88 2006 232103
28. Y. Gao, H. Ding, H. Wang, and D. Yan Electronic structure of interfaces between copper-hexadecafluoro-phthalocyanine and 2,5-bis(4-biphenylyl) bithiophene Appl. Phys. Lett. 91 2007 142112 (Pubitemid 47531511)
29. J. Hwang, A. Wan, and A. Kahn Energetics of metal-organic interfaces: new experiments and assessment of the field Mater. Sci. Eng. R 64 2009 1 31
30. G. Heimel, I. Salzmann, S. Duhm, J.P. Rabe, and N. Koch Intrinsic surface dipoles control the energy levels of conjugated polymers Adv. Funct. Mater. 19 2009 3874 3879
31. C.Y. Yang, C. Soci, D. Moses, and A.J. Heeger Aligned rrP3HT film: structural order and transport properties Synth. Met. 155 2005 639 642 (Pubitemid 41767680)
32. H. Sirringhaus, P.J. Brown, R.H. Friend, M.M. Nielsen, K. Bechgaard, B.M.W. Langeveld-Voss, A.J.H. Spiering, R.A.J. Janssen, E.W. Meijer, P. Herwig, and D.M. de Leeuw Two-dimensional charge transport in self-organized, high-mobility conjugated polymers Nature 401 1999 685 688
33. H.A. Mizes, and E.M. Conwell Polarons and their stability in poly(phenylenevinylene) Synth. Met. 68 1995 145 151
34. V.M. Geskin, A. Dkhissi, and J.L. Brdas Oligothiophene radical cations: polaron structure in hybrid DFT and MP2 calculations Int. J. Quantum Chem. 91 2003 350 354