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Enhanced Performance of Organic Light Emitting Diodes Using LiF Buffer Layer

Published online by Cambridge University Press:  31 January 2011

Omkar Vyavahare  and
Richard Hailstone
Omkar Vyavahare
Affiliation:
[email protected]@gmail.com, Rochester Institute of Technology, Materials Science and Engineering, Rochester, New York, United States
Richard Hailstone
Affiliation:
[email protected], Rochester Institute of Technology, Center for Imaging Science, Rochester, New York, United States
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Abstract

Since the invention of organic electroluminescent devices, a great deal of effort has been made to improve their performance. Reducing the barrier and optimizing charge injection is crucial for efficient and bright Organic Light Emitting Diodes (OLEDs). We report the performance of OLEDs with ITO/TPD/Alq3/Al structure by inserting LiF both at electrode-organic interfaces and organic-organic interface. We elucidate the mechanism of the LiF buffer layer inserted at different interfaces. The device with LiF as a cathode injection layer shows improved luminescence and steeper IV characteristics.

Keywords

organicoptoelectronicelectronic material
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1154: Symposium B – Concepts in Molecular and Organic Electronics , 2009 , 1154-B05-84
Copyright
Copyright © Materials Research Society 2009

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