2013年11月
In-situ study on layer-by-layer growth in vapor deposition of linear long-chain molecules using a quartz crystal microbalance
Journal of Applied Physics
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- 巻
- 114
- 号
- 18
- 開始ページ
- 183516(1)
- 終了ページ
- (4)
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1063/1.4829909
- 出版者・発行元
- AMER INST PHYSICS
The thin film formation at the initial stage of the vapor deposition of organic long-chain molecules was monitored using a quartz crystal microbalance. The growth rate of the thin films was strongly dependent on the substrate temperature: at substrate temperatures below 287 K, the film growth proceeded at a uniform rate while no film was formed above 297K owing to a higher rate of re-evaporation. Of particular interest is a stepwise increase in the amount of molecules adsorbed at 293 K, where each step height corresponded to the molecular length. These results suggest that layer-by-layer growth proceeds with a molecular orientation normal to the substrate under the conditions where re-evaporation dominates the film growth process. This growth model was confirmed by fitting the data to the Avrami equation for the two-dimensionally predetermined nucleation. (c) 2013 AIP Publishing LLC.
- リンク情報
- ID情報
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- DOI : 10.1063/1.4829909
- ISSN : 0021-8979
- eISSN : 1089-7550
- Web of Science ID : WOS:000327261800027