Electroluminescent polymers

Two main methods have been used to measure the charge carrier mobility in electroluminescent polymers time of flight (TOF) carrier transit time measurements and analysis of the current-voltage (1-V) characteristics of single carrier devices in the space charge-limited current (SCLC) regime. A summary of the results for the hole mobility of PPV and PPV-related polymers is given in Table 11-1 [24, 27-32]. For... 

Thin Films of Electroluminescent Polymers 335 Electronic Eneigy Structure 336 Optical Properties 336 Electrical Transport Properties 338... 

U. Lemmer. R. F. Malm, Y. Wada, A. Greiner, H. Basslcv. E.O. Gobel, Time resolved luminescence study of recombination processes in electroluminescent polymers, Appl. Phys. Lett. 1993, 62, 2827. 

This chapter is organized as follows in Section 11.2 the relevant properties of electroluminescent polymer Films are summarized in Section 11.3 the electronic properties of mctal/polymer junctions are described in Section 11.4 single layer polymer LEDs are discussed in Section 11.5 multi-layer polymer LEDs are considered and Section 11.6 summarizes the conclusions. 

G Yu, G Srdanov, B Zhang, M Stevenson, J Wang, P Chen, E Baggao, J Macias, R Sun, C McPherson, P Sant, J Innocenzo, M Stainer, and M O Regan, Active-Matrix Polymer Displays Made with Electroluminescent Polymers, Cockpit Displays X, Orlando, Florida, 2003, pp. 192-199. 

H. Meng, W. Yu, and W. Huang, Facile synthetic route to a novel electroluminescent polymer — poly(p-phenylene vinylene) containing a fully conjugated aromatic oxadiazole side chain, Macromolecules, 32 8841-8847, 1999. 

T. Ahn, S. Song, and H. Shim, Highly photoluminescent and blue-green electroluminescent polymers new silyl- and alkoxy-substituted poly(p-phenylene vinylene) related copolymers containing carbazole or fluorene groups, Macromolecules, 33 6764-6771, 2000. 

T. Ahn, M.S. Jang, H.-K. Shim, D.-H. Hwang, and T. Zyung, Blue electroluminescent polymers control of conjugation length by kink linkages and substituents in the poly(p-phenylene vinylene)-related copolymers, Macromolecules, 32 3279-3285, 1999. 

T. Zyung, D.-H. Hwang, I.-N. Kang, H.-K. Shim, W.-Y. Hwang, and J.-J. Kim, Novel blue electroluminescent polymers with well-defined conjugation length, Chem. Mater., 7 1499-1503,1995. 

FIGURE 5.4 Chemical structures of photo- and electroluminescent polymers employed for polarized LEDs poly(2-methoxy-5-(2 -ethyl-hexyloxy)-p-phenylene vinylene) (MEH-PPV) poly[2,5-dioctyloxy-l, 4-diethynyl-phenylene-a/t-2,5,-bis(2 -ethylhexyloxy)-l,4-phenylene] (EHO-OPPE) poly(p-phenylene), PPP poly(3-(4-octylphenyl)-2,2 -bithiophene), PTOPT poly(p-phenylene vinylene), PPV poly(3-alkylthio-phene vinylene), P3AT Acetoxy-PPY PPV-polyester, poly(9,9-dialkyl fluorene), PF. 

DDC Bradley, Electroluminescent polymers materials, physics and device engineering, Curr. Opin. Solid State Mater. Sci., 1 789-797, 1996. 

S Noach, EZ Faraggi, G Cohen, Y Avny, R Neumann, D Davidov, and A Lewis, Microfabrication of an electroluminescent polymer light emitting diode pixel array, Appl. Phys. Lett., 69 3650-3652, 1996. 

Nonlinear Optical and Electroluminescence Polymers Volume Editor Lee, K.-S. 

Cathode (low-working function metat) Electroluminescent polymer Anode (indium tin oxide)... 

Note 1 Electroluminescent polymers are often made by incorporating luminescent groups or dyes into conducting polymers. 

The cross-coupling polymerization with dihaloarenes leads to poly(phenylene-vinylene)s (PPVs), which are widely employed as conductive and electroluminescent polymers. ... 

Figure 6.105 Molecular structure of two electroluminescent polymers. Reprinted, by permission, from P. Ball, Made to Measure, p. 381. Copyright 1997 by Princeton University Press.

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