Enhancing the electron injection in polymer light-emitting diodes using a sodium stearate/aluminum bilayer cathode

Organic Electronics

Volumn 14, Issue 1, 2013, Pages 335-343

  Siemund, H ^a   Brocker F ^a   Gobel H ^a  

^a HELMUT SCHMIDT UNIVERSITY   (Germany)

Author keywords

Bilayer cathode; Electron injection; OLED; Ph PPV; Simulation; Sodium stearate

Indexed keywords

ALKALI HALIDES; AROMATIC COMPOUNDS; CATHODES; ELECTRON INJECTION; ELECTRONS; FLASH MEMORY; FLUORINE COMPOUNDS; LITHIUM FLUORIDE; MULTILAYERS; SODIUM;

BI-LAYER; CHARGE CARRIER INJECTION; ELECTRON INJECTION LAYERS; OLED; ORGANIC LIGHT EMITTING DIODES(OLEDS); POLYMER LIGHT EMITTING DIODE; SIMULATION; SODIUM STEARATE;

ORGANIC LIGHT EMITTING DIODES (OLED);

EID: 84870676913     PISSN: 15661199     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.orgel.2012.09.043     Document Type: Article

References (50)

1. C.W. Tang, and S.A. VanSlyke Organic electroluminescent diodes Appl. Phys. Lett. 51 1987 913
2. J.W. Park, D.C. Shin, and S.H. Park Large-area OLED lightings and their applications Semicond. Sci. Technol. 26 2011 034002
3. S.R. Tseng, Y.S. Chen, H.F. Meng, H.C. Lai, C.H. Yeh, S.F. Horng, H.H. Liao, and C.S. Hsu Electron transport and electroluminescent efficiency of conjugated polymers Synthetic Met. 159 2009 137 141
4. N. Koch Organic electronic devices and their functional interfaces ChemPhysChem 8 2007 1438 1455
5. Y. Shao, G.C. Bazan, and A.J. Heeger Long-lifetime polymer light-emitting electrochemical cells Adv. Mater. 19 2007 365 370
6. L. Schöler, K. Seibel, K. Panczyk, and M. Böhm An integrated PLED-a light source for application specific lab-on-microchips Microelectron. Eng. 86 2009 1502 1504
7. H. Youn, and M. Yang Solution processed polymer light-emitting diodes utilizing a ZnO/organic ionic interlayer with Al cathode Appl. Phys. Lett. 97 2010 243302
8. L.S. Hung, C.W. Tang, and M.G. Mason Enhanced electron injection in organic electroluminescence devices using an Al/LiF electrode Appl. Phys. Lett. 70 1997 152
9. G. Li, and J. Shinar Combinatorial fabrication and studies of bright white organic light-emitting devices based on emission from rubrene-doped 4,4-bis(2,2-diphenylvinyl)-1,1-biphenyl Appl. Phys. Lett. 83 2003 5359
10. 3/Al cathodes Appl. Phys. Lett. 71 1997 2560
11. H.W. Choi, S.Y. Kim, W.-K. Kim, and J.-L. Lee Enhancement of electron injection in inverted top-emitting organic light-emitting diodes using an insulating magnesium oxide buffer layer Appl. Phys. Lett. 87 2005 082102
12. 4/Al electrode: an alternative, efficient cathode for organic light-emitting diodes Synthetic Met. 161 2012 2575 2579
13. Y.Q. Zhan, Z.H. Xiong, H.Z. Shi, S.T. Zhang, Z. Xu, G.Y. Zhong, J. He, J.M. Zhao, Z.J. Wang, E. Obbard, H.J. Ding, X.J. Wang, X.M. Ding, W. Huang, X.Y. Hou, and Sodium stearate an effective amphiphilic molecule buffer material between organic and metal layers in organic light-emitting devices Appl. Phys. Lett. 83 2003 1656
14. J.M. Zhao, Y.Q. Zhan, S.T. Zhang, X.J. Wang, Y.C. Zhou, Y. Wu, Z.J. Wang, X.M. Ding, and X.Y. Hou Mechanisms of injection enhancement in organic light-emitting diodes through insulating buffer Appl. Phys. Lett. 84 2004 5377
15. H.J. Ding, X.Z. Wang, Y.Q. Zhan, X.M. Ding, and X.Y. Hou Photoemission study of the sodium stearate/tris-(8-hydroxyquinoline) aluminum interface J. Electron Spectrosc. 144-147 2005 925 928
16. J.-A. Gan, Q.L. Song, X.Y. Hou, K. Chen, and H. Tian 1,8-naphthalimides for non-doping OLEDs: the tunable emission color from blue, green to red J. Photoch. Photobio. A: Chemistry 162 2004 399 406
17. X. Xu, G. Yu, Y. Liu, and D. Zhu Electrode modification in organic light-emitting diodes Displays 27 2006 24 34
18. S.T. Zhang, X.M. Ding, J.M. Zhao, H.Z. Shi, J. He, Z.H. Xiong, H.J. Ding, E.G. Obbard, Y.Q. Zhan, W. Huang, and X.Y. Hou Buffer-layer-induced barrier reduction: Role of tunneling in organic light-emitting devices Appl. Phys. Lett. 84 2004 425
19. S. Shi, D. Ma, and J. Peng Improved electron injection in organic light-emitting devices with a lithium acetylacetonate [Li(acac)]/aluminium bilayer cathode Semicond. Sci. Technol. 22 2007 249 252
20. Y. Kim Power-law-type electron injection through lithium fluoride nanolayers in phosphorescence organic light-emitting devices Nanotechnology 19 2008 355207
21. Y.-E. Kim, H. Park, and J.-J. Kim Enhanced quantum efficiency in polymer electroluminescence devices by inserting a tunneling barrier formed by langmuir-blodgett films Appl. Phys. Lett. 69 1996 599
22. Q. Xu, J. Ouyang, Y. Yang, T. Ito, and J. Kido Ultrahigh efficiency green polymer light-emitting diodes by nanoscale interface modification Appl. Phys. Lett. 83 2003 4695
23. D.E. Markov, and P.W.M. Blom Exciton quenching in poly(phenylene vinylene) polymer light-emitting diodes Appl. Phys. Lett. 87 2005 233511
24. F. So, and D. Kondakov Degradation mechanisms in small-molecule and polymer organic light-emitting diodes Adv. Mater. 22 2010 3762 3777
25. R. Grover New organic thin-film encapsulation for organic light emitting diodes J. Encapsulation Adsorpt. Sci. 01 2011 23 28
26. A. Kammoun, Organische Leuchtdioden aus Polymeren und niedermolekularen Verbindungen für grossflächige OLED-Anzeigen, Cuvillier, Göttingen, first ed., 2008.
27. Y. Vaynzof, T.J. Dennes, J. Schwartz, and A. Kahn Enhancement of electron injection into a light-emitting polymer from an aluminum oxide cathode modified by a self-assembled monolayer Appl. Phys. Lett. 93 2008 103305
28. J. Hwang, A. Wan, and A. Kahn Energetics of metal-organic interfaces: new experiments and assessment of the field Mat. Sci. Eng. R 64 2009 1 31
29. R.H. Fowler, and L. Nordheim Electron emission in intense electric fields P. Roy. Soc. A. Math. Phy. 119 1928 173 181
30. A. Gehring, and S. Selberherr Modeling of tunneling current and gate dielectric reliability for nonvolatile memory devices IEEE T. Device Mat. Re. 4 2004 306 319
31. T. Lee, W. Wang, and M.A. Reed Mechanism of electron conduction in self-assembled alkanethiol monolayer devices Ann. N.Y. Acad. Sci. 1006 2003 21 35
32. Silvaco, Inc., ATLAS User's Manual, 2012.
33. S. Selberherr Analysis and simulation of semiconductor devices 1984 Springer Wien
34. B. Ruhstaller, S.A. Carter, S. Barth, H. Riel, W. Riess, and J.C. Scott Transient and steady-state behavior of space charges in multilayer organic light-emitting diodes J. Appl. Phys. 89 2001 4575
35. J. Staudigel, M. Stössel, F. Steuber, and J. Simmerer A quantitative numerical model of multilayer vapor-deposited organic light emitting diodes J. Appl. Phys. 86 1999 3895
36. A. Schenk Advanced Physical Models for Silicon Device Simulation 1998 Springer Wien and New York
37. S.M. Sze Physics of Semiconductor Devices 1981 Wiley New York
38. C.-C. Lee, M.-Y. Chang, P.-T. Huang, Y.C. Chen, Y. Chang, and S.-W. Liu Electrical and optical simulation of organic light-emitting devices with fluorescent dopant in the emitting layer J. Appl. Phys. 101 2007 114501
39. C.-H. Hsiao, Y.-H. Chen, T.-C. Lin, C.-C. Hsiao, and J.-H. Lee Recombination zone in mixed-host organic light-emitting devices Appl. Phys. Lett. 89 2006 163511
40. N.C. Greenham, R.H. Friend, and D.D.C. Bradley Angular dependence of the emission from a conjugated polymer light-emitting diode: implications for efficiency calculations Adv. Mater. 6 1994 491 494
41. P.W.M. Blom, and M.C.J.M. Vissenberg Charge transport in poly(p-phenylene vinylene) light-emitting diodes Mater. Sci. Eng. R 27 2000 53 94
42. S.J. Martin, J.M. Lupton, I.D.W. Samuel, and A.B. Walker Modelling temperature-dependent current-voltage characteristics of an MEH-PPV organic light emitting device J. Phys. Condens. Matter 14 2002 9925 9933
43. L.S. Hung, and S.T. Lee Electrode modification and interface engineering in organic light-emitting diodes Mater. Sci. Eng. B 85 2001 104 108
44. R.I.R. Blyth, S.A. Sardar, F.P. Netzer, and M.G. Ramsey Influence of oxygen on band alignment at the organic/aluminum interface Appl. Phys. Lett. 77 2000 1212
45. H. Frohne, D. Müller, N. Reckenfuss, P. Rudati, and K. Meerholz Optimization of organic semiconductor devices by anode modification Proc. SPIE 4800 2003 172 181
46. J.M. Montero, J. Bisquert, G. Garcia-Belmonte, H.J. Bolink, and E.M. Barea Interpretation of capacitance spectra and transit times of single carrier space-charge limited transport in organic layers with field-dependent mobility Phys. Stat. Sol. (a) 204 2007 2402 2410
47. G. Garcia-Belmonte, J.M. Montero, Y. Ayyad-Limonge, E.M. Barea, J. Bisquert, and H.J. Bolink Perimeter leakage current in polymer light emitting diodes Curr. Appl. Phys. 9 2009 414 416
48. B.P. Rand, S. Schols, D. Cheyns, H. Gommans, C. Girotto, J. Genoe, P. Heremans, and J. Poortmans Organic solar cells with sensitized phosphorescent absorbing layers Org. Electron. 10 2009 1015 1019
49. 3 OLED internal and external efficiencies: Charge balanced device structure and color conversion outcoupling lenses J. Disp. Technol. 2 2006 143 152
50. Z. Yu, Q. Zhang, L. Li, Q. Chen, X. Niu, J. Liu, and Q. Pei Highly flexible silver nanowire electrodes for shape-memory polymer light-emitting diodes Adv. Mat. 23 2011 664 668