Title :
Organic light emitting diodes
Author :
Kowalsky, W. ; Ammermann, D. ; Böhler, A. ; Dirr, S.
Author_Institution :
Inst. fur Hochfrequenztech., Tech. Univ. Braunschweig, Germany
Abstract :
Organic light emitting diodes with a complex multilayer structure have been successfully fabricated for bright light emission in the entire visible spectral region. The CIE coordinates of the blue, green, and red emitting electroluminescent devices are plotted in the chromaticity diagram. Double heterostructure organic LEDs with separate hole injection and transport layers allow to achieve low turn-on voltages of only about 4 V and a significantly increased quantum efficiency
Keywords :
LED displays; flat panel displays; light emitting diodes; organic semiconductors; blue emitting; bright light emission; chromaticity diagram; complex multilayer structure; double heterostructure; electroluminescent devices; green emitting; low cost flat panel displays; low turn-on voltages; organic light emitting diodes; organic semiconductors; quantum efficiency; red emitting; singlet excitons; Charge carrier processes; Electroluminescent devices; Electron emission; Excitons; Light emitting diodes; Nonhomogeneous media; Organic light emitting diodes; Organic materials; Radiative recombination; Spontaneous emission;
Conference_Titel :
Indium Phosphide and Related Materials, 1996. IPRM '96., Eighth International Conference on
Conference_Location :
Schwabisch-Gmund
Print_ISBN :
0-7803-3283-0
DOI :
10.1109/ICIPRM.1996.492279
