<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">The organic light emitting diode (OLED) is a promising device for future technologies, like flat panel displays and novel light sources. So far the OLED structures have mostly been made by thermal evaporation in vacuum. An alternative approach is to use small molecules which form solid state with glassy structure from solutions. Such compounds can be used in the ink-jet printing technologies and result in reducing the OLED prices.In this paper, we present an original red fluorescent organic compound 2-(2-(4-(bis(2-(trityloxy)ethyl)amino)styryl)-6-methyl-4H-pyran-4-ylidene)-1H-indene-1,3(2H)-dione (ZWK1), with the maximum of the photoluminescence spectrum for solid state at 657 nm. The structure of the electroluminescent device was ITO/PEDOT: PSS (40 nm)/ZWK1 (120 nm)/LiF (1 nm)/Al (100 nm). The electroluminescence spectra correspond to the CIE coordinates <italic>x</italic> = 0.65 and <italic>y</italic> = 0.34 with the maximum at 667 nm. The power and luminance efficiency at the luminance of 100 cd/m2 is 0.43 lm/W and 1.97 cd/A, respectively.</abstract>

The organic light emitting diode (OLED) is a promising device for future technologies, like flat panel displays and novel light sources. So far the OLED structures have mostly been made by thermal evaporation in vacuum. An alternative approach is to use small molecules which form solid state with glassy structure from solutions. Such compounds can be used in the ink-jet printing technologies and result in reducing the OLED prices.In this paper, we present an original red fluorescent organic compound 2-(2-(4-(bis(2-(trityloxy)ethyl)amino)styryl)-6-methyl-4H-pyran-4-ylidene)-1H-indene-1,3(2H)-dione (ZWK1), with the maximum of the photoluminescence spectrum for solid state at 657 nm. The structure of the electroluminescent device was ITO/PEDOT: PSS (40 nm)/ZWK1 (120 nm)/LiF (1 nm)/Al (100 nm). The electroluminescence spectra correspond to the CIE coordinates x = 0.65 and y = 0.34 with the maximum at 667 nm. The power and luminance efficiency at the luminance of 100 cd/m2 is 0.43 lm/W and 1.97 cd/A, respectively.

Novel Amorphous Red Electroluminescence Material Based on Pyranylidene Indene-1,3-Dione Derivative

Institute of Solid State Physics, University of Latvia, 8 Kengaraga Str., Riga LV-1063, LATVIA

Institute of Applied Chemistry, Riga Technical University, 4 Azenes Str., Riga LV-1048, LATVIA

Latvian Journal of Physics and Technical Sciences

The organic light emitting diode (OLED) is a promising device for future technologies, like flat panel displays and novel light sources. So far the OLED...

Novel Amorphous Red Electroluminescence Material Based on Pyranylidene Indene-1,3-Dione Derivative

Published Online: Jul 16, 2010

Page range: 23 - 30

DOI: https://doi.org/10.2478/v10047-010-0011-4

Keywords
OLED, red fluorescent material, amorphous material

This content is open access.

Novel Amorphous Red Electroluminescence Material Based on Pyranylidene Indene-1,3-Dione Derivative

Published Online: Jul 16, 2010

Page range: 23 - 30

DOI: https://doi.org/10.2478/v10047-010-0011-4

KeywordsOLED, red fluorescent material, amorphous material

This content is open access.

Keywords
OLED, red fluorescent material, amorphous material