Intramolecular and Intermolecular Interactions in Hybrid Organic-Inorganic Alucone Films Grown by Molecular Layer Deposition.
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.
Department of Chemistry, Sookmyung Women's University , Seoul 140-742, Korea.
Yi-Seul
YS
Park
Department of Chemistry, Sookmyung Women's University , Seoul 140-742, Korea.
Hyein
H
Kim
Department of Chemistry, Hanyang University , Seoul, 133-791, Korea.
Boram
B
Cho
Department of Chemistry, Sookmyung Women's University , Seoul 140-742, Korea.
Chaeyun
C
Lee
Department of Chemistry, Sookmyung Women's University , Seoul 140-742, Korea.
Sung-Eun
SE
Choi
Department of Chemistry, Hanyang University , Seoul, 133-791, Korea.
Myung Mo
MM
Sung
Department of Chemistry, Sookmyung Women's University , Seoul 140-742, Korea.
Jin Seok
JS
Lee
alucone; molecular interactions; molecular layer deposition; polymeric films; surface reaction