Self-Assembly of Large Scale and High-Quality Colloidal Particle Films by Spin-Coating

Abstract:

Colloidal crystal has attracted much attention both in fundamental crystal growth science and optical applications. This paper reports a simple and efficiency spin-coating method to fabricate high ordered colloidal crystals which have specific structures. We used the cleaned glass slide as substrates, the well dispersity 300nm (±1.2%) polystyrene (PS) spheres aqueous suspension (6.6 wt%) to assemble, and obtained highly organized colloidal crystal thin film by controlling spin-coating condition. Mostly, we got the large area plane hexagonal structure at the first layer and tetragonal construction at the second layer. The mechanism for this stacking way was studied. The obtained thin films were demonstrated by Field emission scanning electron microscope (FESEM) and Fast Fourier transform (FFT).

• Periodical: Advanced Materials Research (Volumes 418-420)
• Pages: 876-879
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.418-420.876
• Online since: December 2011
• Authors: Zhao Ting Yang, Qing Xu, Chao Rong Li
• Keywords: Colloidal Crystal, Ordered Structure, Self-Assembly, Spin-Coating Method

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