A facile strategy to colloidal crystals by drying condensed suspension droplets

作者：Zhou Chuanqiang; Han Jie; Guo Rong^*

来源：Journal of Colloid and Interface Science, 2013, 397: 80-87.

DOI：10.1016/j.jcis.2013.01.052

• Colloidal crystals
• Polystyrene colloids
• Uniform deposition
• Drying suspension droplet
• Self-assembly

Drying condensed colloid suspension droplet on a horizontal glass substrate has been developed as a simple strategy to fabricate highly-ordered colloidal crystals. A uniform film obtained at above room temperature possessed a face-center-cubic (fcc) crystalline structure and excellent photonic properties. It was found that raising the drying temperature has resulted in a reduction in the lattice spacing of fcc colloidal crystals. The formation reason of uniform fcc colloidal crystals was directly related to the high drying temperature and the large colloid concentration. A ring-shaped stain generated by drying at room temperature has exhibited other highly-ordered microstructures with colloidal crystals, such as body center cubic (bcc) structure.

• 出版日期2013-5-1
• 单位扬州大学