Enhancement of the Luminance Efficiency in Organic Light-Emitting Devices with p-Substituted Phenylphosphonic-Acid Self-Assembled Monolayers

2015 ◽  
Vol 15 (7) ◽  
pp. 5062-5065 ◽  
Author(s):  
Min Sung Kim ◽  
Young Pyo Jeon ◽  
Youngwoo Kim ◽  
Jaegeun Noh ◽  
Tae Whan Kim
Keyword(s):  
Self Assembled Monolayers ◽  
Light Emitting ◽  
Phenylphosphonic Acid ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Assembled Monolayers ◽  
Organic Light Emitting Devices ◽  
Self Assembled ◽  
Luminance Efficiency

scholarly journals Manipulating the Local Light Emission in Organic Light-Emitting Diodes by using Patterned Self-Assembled Monolayers

2008 ◽  
Vol 20 (14) ◽  
pp. 2703-2706 ◽  
Author(s):  
Simon G. J. Mathijssen ◽  
Paul A. van Hal ◽  
Ton J. M. van den Biggelaar ◽  
Edsger C. P. Smits ◽  
Bert de Boer ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Light Emission ◽  
Organic Light Emitting Diodes ◽  
Self Assembled Monolayers ◽  
Light Emitting ◽  
Organic Light ◽  
Assembled Monolayers ◽  
Self Assembled

scholarly journals Differences in ITO Surfaces According to the Formation of Aromatic Rings and Aliphatic Self-Assembled Monolayers for Organic Light-Emitting Diode Applications

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2520
Author(s):  
Myung-Gyun Baek ◽  
Sang-Geon Park
Keyword(s):  
Contact Angle ◽  
Work Function ◽  
Light Emitting Diode ◽  
Substrate Surface ◽  
Self Assembled Monolayers ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Assembled Monolayers ◽  
Self Assembled

In this study, we investigated the effects on the characteristic changes in OLED devices of using self-assembled monolayers with different functional groups as the hole injection layer, resulting in changes in their performance. Thus, we confirmed that it is possible to control the wetting properties, surface roughness, and work function of the indium tin oxide (ITO) surface by introducing self-assembled monolayers (SAMs). The contact angle measurements confirmed that the substrate surface contact angle tended to increase with SAM deposition. In addition, AFM measurements confirmed that the substrate surface roughness tended to decrease when SAM was deposited on the surface. Finally, it was confirmed through the work function measurement results that the work function increased when the ITO surface was modified by SAM. Furthermore, compared to OLEDs using only the ITO anode, the SAM-modified device showed a higher current density (359.68 A/cm2), improved brightness (76.8 cd/cm2), and a smaller turn-on voltage (7 V). This approach provides a simple route for fabricating organic light-emitting diode applications.

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