Electroluminescent devices made with conjugated polymers

Neil C. Greenham; Richard H. Friend; Adam R. Brown; Donal D. C. Bradley; Karl Pichler; Paul L. Burn; Arno Kraft; Andrew B. Holmes

doi:10.1117/12.151135

27 August 1993 Electroluminescent devices made with conjugated polymers

Neil C. Greenham, Richard H. Friend, Adam R. Brown, Donal D. C. Bradley, Karl Pichler, Paul L. Burn, Arno Kraft, Andrew B. Holmes

Author Affiliations +

Proceedings Volume 1910, Electroluminescent Materials, Devices, and Large-Screen Displays; (1993) https://doi.org/10.1117/12.151135
Event: IS&T/SPIE's Symposium on Electronic Imaging: Science and Technology, 1993, San Jose, CA, United States

Abstract

In this paper we discuss the principles of operation of polymer electroluminescent devices, and identify the factors which limit device efficiency. We identify how efficiencies can be improved by careful control of the polymer system, and by the use of multilayer structures to confine holes within the device. Using these techniques we can achieve efficiencies of better than 1% photons per electron in devices based on poly(p-phenylenevinylene). We also describe the use of induced absorption techniques to identify the excited states present within an electroluminescent device and to estimate their concentrations.

Citation Download Citation

Neil C. Greenham, Richard H. Friend, Adam R. Brown, Donal D. C. Bradley, Karl Pichler, Paul L. Burn, Arno Kraft, and Andrew B. Holmes "Electroluminescent devices made with conjugated polymers", Proc. SPIE 1910, Electroluminescent Materials, Devices, and Large-Screen Displays, (27 August 1993); https://doi.org/10.1117/12.151135

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