Organic light-emitting diodes based on arylamine molecules and polymers with a fluorene core

Benoit Domercq; Richard D. Hreha; Andreas Haldi; Stephen Barlow; Candace P George; Seth R Marder; Massimo Malagoli; Jean-Luc Bredas; Bernard Kippelen

doi:10.1117/12.506459

16 February 2004 Organic light-emitting diodes based on arylamine molecules and polymers with a fluorene core

Benoit Domercq, Richard D. Hreha, Andreas Haldi, Stephen Barlow, Candace P George, Seth R Marder, Massimo Malagoli, Jean-Luc Bredas, Bernard Kippelen

Author Affiliations +

Proceedings Volume 5214, Organic Light-Emitting Materials and Devices VII; (2004) https://doi.org/10.1117/12.506459
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

A series of soluble arylamine-based hole transporting molecules with a fluorene core and with various ionization potentials have been synthesized. The transport properties of these molecules doped into polystyrene have been measured by time-of-flight experiments and compared to those of analogous compounds with a biphenyl core (TPD). Reorganization energies between the neutral molecules and their cations have been calculated using density functional theory. The effects of bond length and geometry relaxations on the overall reorganization energy in these two classes of molecules are discussed. Molecules from both classes have been doped into polystyrene and used as hole-transport layers (HTLs) in multi-layer light-emitting diodes with the structure ITO/HTL/AlQ₃/Mg:Ag [ITO = indium tin oxide, AlQ₃ = tris(8-hydroxyquinolinato)aluminum]. The electroluminescent properties and lifetime measurements at constant current have been evaluated. Significant variations in lifetime when using different substituents have been observed.

Citation Download Citation

Benoit Domercq, Richard D. Hreha, Andreas Haldi, Stephen Barlow, Candace P George, Seth R Marder, Massimo Malagoli, Jean-Luc Bredas, and Bernard Kippelen "Organic light-emitting diodes based on arylamine molecules and polymers with a fluorene core", Proc. SPIE 5214, Organic Light-Emitting Materials and Devices VII, (16 February 2004); https://doi.org/10.1117/12.506459

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available