Organic molecular films on gold versus conducting polymer: Influence of injection barrier height and morphology on current–voltage characteristics
作者： N. Koch , A. Elschner , J. Schwartz , A. Kahn
DOI: 10.1063/1.1565506
关键词: Pentacene 、 Optoelectronics 、 Conductive polymer 、 Ohmic contact 、 Organic semiconductor 、 Molecular film 、 Electrode 、 Substrate (electronics) 、 Materials science 、 PEDOT:PSS
摘要: The current–voltage characteristics I(V) of model organic devices are studied under ultra-high-vacuum conditions. Active materials N,N′-bis-(1-naphthyl)-N,N′-diphen-yl1-1,1-biphenyl1-4,4′-diamine (α-NPD) and pentacene, electrode polycrystalline Au the conductive polymer poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT/PSS). Despite a similar work function material surfaces (∼5 eV), hole injection from PEDOT/PSS is significantly more efficient than Au, due to smaller barrier. Hole electrodes for made α-NPD independent deposition sequence substrate used. Pentacene exhibit serious asymmetries in that respect. These caused by strong dependence morphology preferred molecular orientation on crystalline material.
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sci-hub.se 参考文章(14)
William R. Salaneck, Antoine Kahn, Jean-Jacques Pireaux, Kazuhiko Seki, Conjugated Polymer and Molecular Interfaces: Science and Technology for Photonic and Optoelectronic Applications ,(2009)
C. Shen, A. Kahn, J. Schwartz, Chemical and electrical properties of interfaces between magnesium and aluminum and tris-(8-hydroxy quinoline) aluminum Journal of Applied Physics. ,vol. 89, pp. 449- 459 ,(2001) , 10.1063/1.1333740
Hisao Ishii, Kiyoshi Sugiyama, Eisuke Ito, Kazuhiko Seki, ENERGY LEVEL ALIGNMENT AND INTERFACIAL ELECTRONIC STRUCTURES AT ORGANIC/METAL AND ORGANIC/ORGANIC INTERFACES Advanced Materials. ,vol. 11, pp. 605- 625 ,(1999) , 10.1002/(SICI)1521-4095(199906)11:8<605::AID-ADMA605>3.0.CO;2-Q
I. G. Hill, A. J. Mäkinen, Z. H. Kafafi, Distinguishing between interface dipoles and band bending at metal/tris-(8-hydroxyquinoline) aluminum interfaces Applied Physics Letters. ,vol. 77, pp. 1825- 1827 ,(2000) , 10.1063/1.1310637
A Elschner, F Bruder, H.-W Heuer, F Jonas, A Karbach, S Kirchmeyer, S Thurm, R Wehrmann, PEDT/PSS for efficient hole-injection in hybrid organic light-emitting diodes Synthetic Metals. ,vol. 111, pp. 139- 143 ,(2000) , 10.1016/S0379-6779(99)00328-8
P. G. Schroeder, C. B. France, J. B. Park, B. A. Parkinson, Energy level alignment and two-dimensional structure of pentacene on Au(111) surfaces Journal of Applied Physics. ,vol. 91, pp. 3010- 3014 ,(2002) , 10.1063/1.1445286
C. B. France, P. G. Schroeder, B. A. Parkinson, Direct Observation of a Widely Spaced Periodic Row Structure at the Pentacene/Au(111) Interface Using Scanning Tunneling Microscopy Nano Letters. ,vol. 2, pp. 693- 696 ,(2002) , 10.1021/NL025567N
N. Koch, A. Kahn, J. Ghijsen, J.-J. Pireaux, J. Schwartz, R. L. Johnson, A. Elschner, Conjugated organic molecules on metal versus polymer electrodes: Demonstration of a key energy level alignment mechanism Applied Physics Letters. ,vol. 82, pp. 70- 72 ,(2003) , 10.1063/1.1532102
Shigeki Naka, Hiroyuki Okada, Hiroyoshi Onnagawa, Yoshihisa Yamaguchi, Tetsuo Tsutsui, Carrier transport properties of organic materials for EL device operation Synthetic Metals. ,vol. 111, pp. 331- 333 ,(2000) , 10.1016/S0379-6779(99)00358-6
I. G. Hill, A. Rajagopal, A. Kahn, Y. Hu, Molecular level alignment at organic semiconductor-metal interfaces Applied Physics Letters. ,vol. 73, pp. 662- 664 ,(1998) , 10.1063/1.121940