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Proceedings Paper

Efficient organic light-emitting diodes with Teflon as buffer layer
Author(s): Liduo Wang; Haifeng Wang; Yong Qiu
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Paper Abstract

In this study, high-performance organic light-emitting diodes (OLEDs) with a buffer layer of polytetrafluoroethylene (Teflon) are demonstrated. Compared with copper phthalocyanine (CuPc), a conventional buffer layer, Teflon shows a lower absorption in the wavelength from 200nm to 800nm. OLEDs with a Teflon layer and a CuPc buffer layer were fabricated under the same conditions, and their performances were compared. The results indicate that the OLEDs with a 1.5-nm-thick Teflon buffer layer had a markedly enhanced performance with an efficiency of 9.0cd/A at a current density of 100mA/cm2, while those with a 30-nm-thick CuPc buffer layer only showed an efficiency of 6.4cd/A at the same current density.

Paper Details

Date Published: 12 January 2005
PDF: 10 pages
Proc. SPIE 5632, Light-Emitting Diode Materials and Devices, (12 January 2005); doi: 10.1117/12.600896
Show Author Affiliations
Liduo Wang, Tsinghua Univ. (China)
Haifeng Wang, Tsinghua Univ. (China)
Yong Qiu, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 5632:
Light-Emitting Diode Materials and Devices
Gang Yu; Chuangtian Chen; Changhee Lee, Editor(s)

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