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Monolayer Colloidal Crystals by Modified Air-Water Interface Self-Assembly Approach

Hexagonally ordered arrays of polystyrene (PS) microspheres were prepared by a modified air-water self-assembly method. A detailed analysis of the air-water interface self-assembly process was conducted. Several parameters affect the quality of the monolayer colloidal crystals, i.e., the colloidal m...

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Detalles Bibliográficos
Autores principales: Ye, Xin, Huang, Jin, Zeng, Yong, Sun, Lai-Xi, Geng, Feng, Liu, Hong-Jie, Wang, Feng-Rui, Jiang, Xiao-Dong, Wu, Wei-Dong, Zheng, Wan-Guo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666456/
https://www.ncbi.nlm.nih.gov/pubmed/28946664
http://dx.doi.org/10.3390/nano7100291
Descripción
Sumario:Hexagonally ordered arrays of polystyrene (PS) microspheres were prepared by a modified air-water self-assembly method. A detailed analysis of the air-water interface self-assembly process was conducted. Several parameters affect the quality of the monolayer colloidal crystals, i.e., the colloidal microsphere concentration on the latex, the surfactant concentration, the polystyrene microsphere diameter, the microsphere polydispersity, and the degree of sphericity of polystyrene microspheres. An abrupt change in surface tension was used to improve the quality of the monolayer colloidal crystal. Three typical microstructures, i.e., a cone, a pillar, and a binary structure were prepared by reactive-ion etching using a high-quality colloidal crystal mask. This study provides insight into the production of microsphere templates with flexible structures for large-area patterned materials.