MULTILAYER ORGANIC LEDS BASED ON A NEW DYE-DOPED POLYMER*

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MULTILAYER ORGANIC LEDS BASED ON A NEW DYE-DOPED POLYMER*

Papers | Updated：2021-06-21

- MULTILAYER ORGANIC LEDS BASED ON A NEW DYE-DOPED POLYMER*
- Vol. 17, Issue 4, Pages: 343-346(1999)
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- Published：20 August 1999
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MULTILAYER ORGANIC LEDS BASED ON A NEW DYE-DOPED POLYMER*[J]. 1999, 17(4): 343-346.
DOI：

MULTILAYER ORGANIC LEDS BASED ON A NEW DYE-DOPED POLYMER*[J]. 1999, 17(4): 343-346. DOI：

摘要

A blue dye

l-benzothiazoly-3-phenyl-pyrazoline (BTPP) was found to function as bright lightemitting dye in organic electroluminescent devices. This heterocyclic compound exhibits good characteristicsof blue photoluminescence and electroluminescence

which has emission peak at 445 nm.The thin films offluorescent dye dispersed in poly(N-vinylcarbazole) (PVK) could serve as light-emitting layers in multilayerorganic LEDs. 2-(4-Biphenyl)-5-(4-tert-butylpheynyl)-1

4-oxadiazole (PBD) and tris-(8-hydroxyquinoline)aluminum(Alq3)were introduced into double-layer and three-layer devices respectively.The introduction of electron transport material Alq3 enhanced the electron injection and luminous efficiency

as compared with double-layer devices.Maximum brightness and luminous efficiency can be reached up to 190 cd/m2 and 0.31m/W

respectively.

Abstract

A blue dye

as compared with double-layer devices.Maximum brightness and luminous efficiency can be reached up to 190 cd/m2 and 0.31m/W

respectively.

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