Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/5399
Title: Electrical properties of SAM-modified ITO surface using aromatic small molecules with double bond carboxylic acid groups for OLED applications
Authors: Can, Mustafa
Havare, Ali Kemal
Aydın, Hasan
Yağmurcukardeş, Nesli
Demir, Şerafettin
İçli, Sıddık
Okur, Salih
Keywords: Carboxylic acid
OLED
SAM
Synthesis (Chemistry)
Tin oxides
Hole transport layers
Publisher: Elsevier Ltd.
Source: Can, M., Havare, A.K., Aydın, H., Yağmurcukardeş, N., Demic, Ş., İçli, S., and Okur, S. (2014). Electrical properties of SAM-modified ITO surface using aromatic small molecules with double bond carboxylic acid groups for OLED applications. Applied Surface Science, 314, 1082-1086. doi:10.1016/j.apsusc.2014.05.181
Abstract: 5-[(3-Methylphenyl)(phenyl)amino]isophthalic acid (5-MePIFA) and 5-(diphenyl)amino]isophthalic acid (5-DPIFA) organic molecules were synthesized to form self-assembled monolayer on indium tin oxide (ITO) anode to enhance hole transport from ITO to organic hole transport layers such as TPD. The modified surface was characterized by scanning tunneling microscopy (STM). The change in the surface potential was measured by Kelvin probe force microscopy (KPFM). Our Kelvin probe force microscopy (KPFM) measurements showed that the surface potentials increased more than 100 mV with reference to bare indium tin-oxide. The results show that the threshold voltage on OLEDs with modified ITO is lowered significantly compared to OLEDs with unmodified ITO. The hole mobility of TPD has been estimated using space-charge-limited current measurements (SCLC).
URI: http://doi.org/10.1016/j.apsusc.2014.05.181
http://hdl.handle.net/11147/5399
ISSN: 0169-4332
0169-4332
1873-5584
Appears in Collections:Materials Science and Engineering / Malzeme Bilimi ve Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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