Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/4934
Title: Modification of ITO surface using aromatic small molecules with carboxylic acid groups for OLED applications
Authors: Havare, Ali Kemal
Can, Mustafa
Demiç, Şerafettin
Okur, Salih
Kuş, Mahmut
Aydın, Hasan
Yağmurcukardeş, Nesli
Tarı, Süleyman
Keywords: Hole injection
OLED
Self-assembled
Organic light emitting diodes
Issue Date: Nov-2011
Publisher: Elsevier Ltd.
Source: Havare, A.K., Can, M., Demiç, Ş., Okur, S., Kuş, M., Aydın, H., Yağmurcukardeş, N., and Tarı, S. (2011). Modification of ITO surface using aromatic small molecules with carboxylic acid groups for OLED applications. Synthetic Metals, 161(21-22), 2397-2404. doi:10.1016/j.synthmet.2011.09.007
Abstract: 4-[(3-Methylphenyl)(phenyl)amino]benzoic acid (MPPBA) was synthesized in order to facilitate the hole-injection in Organic Light Emitting Diodes (OLED). MPPBA was applied to form self-assembled monolayer (SAM) on indium tin oxide (ITO) anode to align energy-level at the interface between organic semiconductor material (TPD) and inorganic anode (ITO) in OLED devices. The modified surface was characterized by X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM) and Kelvin probe force microscopy (KPFM). KPFM was used to measure the surface potential and work function between the tip and the ITO surface modified by SAM technique using MPPBA. The OLED devices (ITO/MPPBA/TPD/Alq3/Al) fabricated with SAM-modified ITO substrates showed lower turn-on voltages and enhanced diode current compare to the OLED devices fabricated with bare ITO substrates.
URI: http://doi.org/10.1016/j.synthmet.2011.09.007
http://hdl.handle.net/11147/4934
ISSN: 0379-6779
0379-6779
Appears in Collections:Physics / Fizik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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