Evaporation Effect on Thickness Distribution for Spin-Coated Films on Rectangular and Circular Substrates
Spin-coating is widely applied in the field of thin-film fabrication due to its simplicity and high film uniformity. To prepare thin films on rectangular substrates by spin-coating, the simulation and experimental methods were used to study the characteristics of the film thickness in this work. The...
Guardado en:
| Autores principales: | , , , |
|---|---|
| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
MDPI AG
2021
|
| Materias: | |
| Acceso en línea: | https://doaj.org/article/870ecc9fe41047c4b81e0269332f4ea6 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:doaj.org-article:870ecc9fe41047c4b81e0269332f4ea6 |
|---|---|
| record_format |
dspace |
| spelling |
oai:doaj.org-article:870ecc9fe41047c4b81e0269332f4ea62021-11-25T17:16:01ZEvaporation Effect on Thickness Distribution for Spin-Coated Films on Rectangular and Circular Substrates10.3390/coatings111113222079-6412https://doaj.org/article/870ecc9fe41047c4b81e0269332f4ea62021-10-01T00:00:00Zhttps://www.mdpi.com/2079-6412/11/11/1322https://doaj.org/toc/2079-6412Spin-coating is widely applied in the field of thin-film fabrication due to its simplicity and high film uniformity. To prepare thin films on rectangular substrates by spin-coating, the simulation and experimental methods were used to study the characteristics of the film thickness in this work. The two-phase flow simulations of spin-coating on a rectangular substrate and circular substrate were carried out with the volume of fluid (VOF) method. The simulation results showed that the airflow field and the substrate geometry had little effect on the evolution of spin-coated film thickness. However, in the experimental results, there was a significant difference in the thickness of the spin-coated film on the rectangular substrate and the circular substrate. According to further study, the solvent evaporation that was neglected in the simulation was the dominant factor of the differences. In addition, it was concluded that the non-uniform evaporation caused by the surface tension and edge accumulation in the later spin-coating stage was the main reason for the film accumulation of the windward area on the rectangular substrate. This work is useful to obtain a deeper understanding of the thin-film formation mechanism of spin-coating.Ying YanJiarun LiQiuyu LiuPing ZhouMDPI AGarticlespin-coatingrectangular substratefilm thickness distributiontwo-phase flowsolvent evaporationEngineering (General). Civil engineering (General)TA1-2040ENCoatings, Vol 11, Iss 1322, p 1322 (2021) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
spin-coating rectangular substrate film thickness distribution two-phase flow solvent evaporation Engineering (General). Civil engineering (General) TA1-2040 |
| spellingShingle |
spin-coating rectangular substrate film thickness distribution two-phase flow solvent evaporation Engineering (General). Civil engineering (General) TA1-2040 Ying Yan Jiarun Li Qiuyu Liu Ping Zhou Evaporation Effect on Thickness Distribution for Spin-Coated Films on Rectangular and Circular Substrates |
| description |
Spin-coating is widely applied in the field of thin-film fabrication due to its simplicity and high film uniformity. To prepare thin films on rectangular substrates by spin-coating, the simulation and experimental methods were used to study the characteristics of the film thickness in this work. The two-phase flow simulations of spin-coating on a rectangular substrate and circular substrate were carried out with the volume of fluid (VOF) method. The simulation results showed that the airflow field and the substrate geometry had little effect on the evolution of spin-coated film thickness. However, in the experimental results, there was a significant difference in the thickness of the spin-coated film on the rectangular substrate and the circular substrate. According to further study, the solvent evaporation that was neglected in the simulation was the dominant factor of the differences. In addition, it was concluded that the non-uniform evaporation caused by the surface tension and edge accumulation in the later spin-coating stage was the main reason for the film accumulation of the windward area on the rectangular substrate. This work is useful to obtain a deeper understanding of the thin-film formation mechanism of spin-coating. |
| format |
article |
| author |
Ying Yan Jiarun Li Qiuyu Liu Ping Zhou |
| author_facet |
Ying Yan Jiarun Li Qiuyu Liu Ping Zhou |
| author_sort |
Ying Yan |
| title |
Evaporation Effect on Thickness Distribution for Spin-Coated Films on Rectangular and Circular Substrates |
| title_short |
Evaporation Effect on Thickness Distribution for Spin-Coated Films on Rectangular and Circular Substrates |
| title_full |
Evaporation Effect on Thickness Distribution for Spin-Coated Films on Rectangular and Circular Substrates |
| title_fullStr |
Evaporation Effect on Thickness Distribution for Spin-Coated Films on Rectangular and Circular Substrates |
| title_full_unstemmed |
Evaporation Effect on Thickness Distribution for Spin-Coated Films on Rectangular and Circular Substrates |
| title_sort |
evaporation effect on thickness distribution for spin-coated films on rectangular and circular substrates |
| publisher |
MDPI AG |
| publishDate |
2021 |
| url |
https://doaj.org/article/870ecc9fe41047c4b81e0269332f4ea6 |
| work_keys_str_mv |
AT yingyan evaporationeffectonthicknessdistributionforspincoatedfilmsonrectangularandcircularsubstrates AT jiarunli evaporationeffectonthicknessdistributionforspincoatedfilmsonrectangularandcircularsubstrates AT qiuyuliu evaporationeffectonthicknessdistributionforspincoatedfilmsonrectangularandcircularsubstrates AT pingzhou evaporationeffectonthicknessdistributionforspincoatedfilmsonrectangularandcircularsubstrates |
| _version_ |
1718412542110334976 |