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Proceedings Paper

Energy level alignment in metal/organic interfaces: Ca/Alq3 and Al/Alq3
Author(s): Li Yan; M. Gary Mason; Ching W. Tang; Yongli Gao
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Paper Abstract

The importance of interfacial properties in organic light emitting devices (OLED) is well recognized. Using mainly surface/interface analytical techniques in a well controlled ultra high vacuum (UHV) environment, we have studied the formation of interfaces that occurs in OLEDs using X-ray and ultraviolet photoelectron spectroscopy (XPS and UPS). The results have shown that the interface energy level alignment is intimately related to the charge injection and therefore to the device characteristics and performance. Relationship to interface charge transfer, chemical reaction, and dipole layer formation will also be discussed.

Paper Details

Date Published: 2 February 2001
PDF: 8 pages
Proc. SPIE 4105, Organic Light-Emitting Materials and Devices IV, (2 February 2001); doi: 10.1117/12.416879
Show Author Affiliations
Li Yan, Univ. of Rochester (United States)
M. Gary Mason, Eastman Kodak Co. (United States)
Ching W. Tang, Eastman Kodak Co. (United States)
Yongli Gao, Univ. of Rochester (United States)

Published in SPIE Proceedings Vol. 4105:
Organic Light-Emitting Materials and Devices IV
Zakya H. Kafafi, Editor(s)

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