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|
| Type |
Poster Presentation |
| Area |
Material Chemistry |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
MAT.P-386 |
| Subject |
Molecular Interaction Correlating Growth Behaviors in Sequentially Polymerized Polyurea Films |
| Authors |
Hyemi Lee, JIN SEOK LEE*
Department of Chemistry, Sookmyung Women's University, Korea
|
| Abstract |
Molecular layer deposition (MLD) is a method for obtaining conformal ultrathin organic films using vapor-phase organic precursors, while their composition and thickness can be controlled at the molecular level. This process is based on self-saturating reactions between the organic precursors and the substrate surface. In addition, in comparison with solution-based technique, it allows epitaxial growth of molecular layer on substrate and is especially good for surface reaction or coating of nanostructures such as nano-pore, nano-channel, nano-wire array and so on.
In this study, we fabricated three different kinds of polyurea films by molecular layer deposition by fixing first source as p-Phenylenediisocyanate(PDI) and changing second source as Hexamethylenediamine(HDA), Ethylenediamine(EDA) or p-Phenylenediamine(PDA). Using Ellipsometry, we confirmed the different growth rate of the films versus number of MLD cycles at all same temperature. We also measured the molecular orientations of each polyurea films by Grazing Incidence Wide Angle X-ray Scattering (GIWAXS). Furthermore, all molecular geometries on surfaces with various polyurea films were predicted by performing density functional theory (DFT) calculations. |
| E-mail |
hmlee@sookmyung.ac.kr |
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121st General Meeting of the KCS