期刊
ACS APPLIED MATERIALS & INTERFACES
卷 8, 期 27, 页码 17489-17498出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b01856
关键词
polymeric films; molecular interactions; alucone; molecular layer deposition; surface reaction
资金
- Nano.Material Technology Development Program - National Research Foundation [2012M3A7B4034986]
- Pioneer Research Center Program through the National Research Foundation of Korea - Ministry of Science, ICT & Future Planning [2012-0009562]
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT & Future Planning [2015R1A2A2A01005556]
- National Research Foundation of Korea [2015R1A2A2A01005556] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Investigation of molecular interactions in polymeric films is crucial for understanding and engineering multiscale physical phenomena correlated to device function and performance, but this often involves a compromise between theoretical and experimental data, because of poor film uniformity. Here, we report the intramolecular and intermolecular interactions inside the ultrathin and conformal hybrid organic inorganic alucone films grown by molecular layer deposition, based on sequential and self-limiting surface reactions. Varying the carbon chain length of organic precursors, which affects their molecular flexibility, caused intramolecular interactions such as double reactions by bending of the molecular backbone, resulting in formation of hole vacancies in the films. Furthermore, intermolecular interactions in alucone polymeric films are dependent on the thermal kinetics of molecules, leading to binding failures and cross -linking at low and high growth temperatures, respectively. We illustrate these key interactions and identify molecular geometries and potential energies by density functional theory calculations.
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