Abstract
PTASV was newly synthesized through the Wittig reaction and characteristics of various types of LEDs using this polymer were investigated. A single layer device (ITO/PTASV/Al) showed green emission at about 540 nm with the threshold voltage of 20 V. When a thin LiF layer was inserted to the PTASV/Al interface, the external quantum efficiency was increased about 10 times that of the single layer device with lower threshold voltage. The external quantum efficiency of the device with heterojunction structure (ITO/PTASV/Alq3/LiF/Al) was 0.01% at current density of 8 mA/cm2, in air and at room temperature.
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Schedule a callMore From: Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
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