Title :
Investigation of photoluminescence and electrical properties of 3,6-Di(9-carbazolyl)-9-(2-ethylhexyl)carbazole
Author :
Hotra, Zenon ; Stakhira, Pavlo ; Volyniuk, Dmytro ; Cherpak, Vladyslav ; Simokaitiene, Jurate ; Tomkeviciene, Ausra ; Grazulevicius, Juozas ; Kremer, Iryna
Author_Institution :
Lviv Polytech. Nat. Univ., Lviv, Ukraine
Abstract :
In this paper the photoluminescence of organic semiconductor 3,6-di(9-carbazolyl)-9-(2-ethylhexyl) (TCz1) film and electrical properties of the device on it base are investigated. In the photoluminescence spectrum of TCz1 films at excitation of 320 and 350 nm the new red shifted band appeared which was not observed with the excitation wavelength of 270 nm. An analysis of frequency dependences of the impedance showed that the device ITO/CuI/TCz1/Al can be simulated by an equivalent circuit consisting of two series RC elements representing the organic film bulk and space charge region.
Keywords :
aluminium; copper compounds; electric impedance; electrochemical impedance spectroscopy; equivalent circuits; indium compounds; organic light emitting diodes; organic semiconductors; photoluminescence; red shift; semiconductor thin films; space charge; 3,6-di(9-carbazolyl)-9-(2-ethylhexyl)carbazolev films; ITO-CuI-Al; OLED; TCz1 films; electrical properties; electrochemical impedance spectroscopy; equivalent circuit; excitation wavelength; impedance; organic semiconductor; photoluminescence; red shift; space charge; Indium tin oxide; Spectroscopy; Organic light emitting devices; carbazole derivates; impedance spectroscopy; photoluminescence spectra;
Conference_Titel :
Modern Problems of Radio Engineering Telecommunications and Computer Science (TCSET), 2012 International Conference on
Conference_Location :
Lviv-Slavske
Print_ISBN :
978-1-4673-0283-8
