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논문 기본 정보

자료유형
학술저널
저자정보
Myung-Gyun Baek (Changwon National University) Sang-Seok Yun (Silla University) Jin-Sa Kim (Changwon National University) Hong-Gyu Park (Changwon National University) Sang-Geon Park (Changwon National University)
저널정보
한양대학교 세라믹공정연구센터 Journal of Ceramic Processing Research Journal of Ceramic Processing Research 제23권 제3호
발행연도
2022.6
수록면
320 - 325 (6page)

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In this study, we investigated the deposition of trimethoxy(propyl)silane as a self-assembled monolayer (SAM) on the surfaceof an indium tin oxide (ITO) substrate in organic light-emitting diodes (OLEDs) by examining the changes in surfacecharacteristics of the modified substrate with variations in deposition time and temperature. The highest contact angle wasobtained at 160 oC, and for each deposition time, the contact angles were 63o, 66o, 80o, 96o, 103o, 103o, 103o, and 104o,respectively, indicating the contact angle, and thus the hydrophobicity, increased with increasing deposition time andtemperature. In addition, after 90 min of deposition, adequate SAM coverage was achieved on the ITO surface. When thecoverage ratio was calculated, ≥ 99% coverage was obtained after 90 min of deposition at 160 oC. Atomic force microscopyof samples with SAM coverage obtained after 90 min at different deposition tem-peratures revealed improvement in thesurface roughness of the fabricated samples. The work function, measured using a photoelectron spectrometer, demonstrateda characteristic increase with increasing temperature. Thus, SAM deposition can improve the ITO surface propertiesdepending on the time and temperature of deposition.

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