Efficient organic light-emitting diodes with Teflon as buffer layer

Liduo Wang; Haifeng Wang; Yong Qiu

doi:10.1117/12.600896

12 January 2005 Efficient organic light-emitting diodes with Teflon as buffer layer

Liduo Wang, Haifeng Wang, Yong Qiu

Proceedings Volume 5632, Light-Emitting Diode Materials and Devices; (2005) https://doi.org/10.1117/12.600896
Event: Photonics Asia, 2004, Beijing, China

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.

Citation Download Citation

Liduo Wang, Haifeng Wang, and Yong Qiu "Efficient organic light-emitting diodes with Teflon as buffer layer", Proc. SPIE 5632, Light-Emitting Diode Materials and Devices, (12 January 2005); https://doi.org/10.1117/12.600896

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