Real‐Time Monitoring of Colloidal Crystallization in Electrostatically‐Levitated Drops
| العنوان: | Real‐Time Monitoring of Colloidal Crystallization in Electrostatically‐Levitated Drops |
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| المؤلفون: | Tae Min Choi, Hyerim Hwang, Sooheyong Lee, Geun Woo Lee, Shin-Hyun Kim, Yong Chan Cho |
| المصدر: | Small. 16:1907478 |
| بيانات النشر: | Wiley, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | endocrine system, Materials science, Evaporation, Physics::Optics, Crystal growth, 02 engineering and technology, 010402 general chemistry, complex mixtures, 01 natural sciences, law.invention, Physics::Fluid Dynamics, Biomaterials, Crystal, Colloid, law, Condensed Matter::Superconductivity, Electrostatic levitation, General Materials Science, Crystallization, digestive, oral, and skin physiology, General Chemistry, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Condensed Matter::Soft Condensed Matter, Chemical physics, Volume fraction, Levitation, 0210 nano-technology, Biotechnology |
| الوصف: | Colloidal crystallization is analogous to the crystallization in bulk atomic systems in various aspects, which has been explored as a model system. However, a real-time probing of the phenomenon still remains challenging. Here, a levitation system for a study of colloidal crystallization is demonstrated. Colloidal particles in a levitated droplet are gradually concentrated by isotropic evaporation of water from the surface of the droplet, resulting in crystallization. The structural change of the colloidal array during crystallization is investigated by simultaneously measuring the volume and reflectance spectra of the droplet. The crystal nucleates from the surface of the droplet at which the volume fraction exceeds the threshold and then the growth proceeds. The crystal growth behavior depends on the initial concentrations of colloidal particles and salts which determine the overall direction of crystal growth and interparticle spacing, respectively. The results show that a levitating bulk droplet has a great potential as a tool for in situ investigation of colloidal crystallization. |
| تدمد: | 1613-6829 1613-6810 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33be85e0065d651fe6c9d44ca39ca634 https://doi.org/10.1002/smll.201907478 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....33be85e0065d651fe6c9d44ca39ca634 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 16136829 16136810 |
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