Taming the Coffee Ring Effect: Enhanced Thermal Control as a Method for Thin-Film Nanopatterning
| العنوان: | Taming the Coffee Ring Effect: Enhanced Thermal Control as a Method for Thin-Film Nanopatterning |
|---|---|
| المؤلفون: | Jakub Czajkowski, Tapio Fabritius, Rafal Sliz |
| المصدر: | Langmuir |
| بيانات النشر: | American Chemical Society, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | endocrine system, Materials science, Coffee ring effect, macromolecular substances, 02 engineering and technology, Surfaces and Interfaces, 010402 general chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, complex mixtures, 01 natural sciences, Thermal control, Article, 0104 chemical sciences, Colloid, Chemical engineering, 13. Climate action, Electrochemistry, Deposition (phase transition), General Materials Science, Thin film, 0210 nano-technology, Spectroscopy |
| الوصف: | Predicting and controlling a droplet's behavior on surfaces is very complex due to several factors affecting its nature. These factors play a crucial role in colloidal material deposition and related solution-based manufacturing methods such as printing. A better understanding of the processes governing the droplet in the picoliter regime is needed to help develop novel thin-film manufacturing methods and improve the current ones. This study introduces the substrate temperature as a method to control the droplet's behavior during inkjet printing, especially the coffee-ring phenomena, at an unprecedented temperature range (25-250 °C). To explain the particular behavior of the droplet, this research associates the creation of specific coffee-ring micro/nanostructures at elevated temperatures with the Leidenfrost effect that is responsible for creating a vapor pocket under the drying drop. Herein, we combine experimental data and numerical methods to explain the drying dynamic of the picoliter-size droplet on the substrate at elevated temperatures. The achieved results indicate that the coffee-ring effect is correlated with the heat-transfer changes caused by the Leidenfrost effect and can be controlled and used to produce micro/nanostructured thin films without additional processing steps. |
| اللغة: | English |
| تدمد: | 1520-5827 0743-7463 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d158f339b7b2f2642966ef322e0c26df http://europepmc.org/articles/PMC7458470 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....d158f339b7b2f2642966ef322e0c26df |
| قاعدة البيانات: | OpenAIRE |
Find this issue from the American Chemical Society | تدمد: | 15205827 07437463 |
|---|