In Situ Visualization of Layer Transitions during Convective Self-Assembly in a Sessile Drop

Abstract:

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Convective self-assembly of colloidal spheres provides a simple method for fabricating two and three dimensional colloidal crystals. In this work, we investigated the layer transitions phenomena during colloidal self-assembly in a sessile drop by using an in-situ videoscopic set-up. The effects of surface charge, colloidal concentration, and surfactant additions were examined. The results show that the chemical environment plays an important role in colloidal self-assembly. In the case of ordered growth, different layer transition phenomena were observed when the colloidal concentration is different.

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Periodical:

Edited by:

S. J. CHUA, J. H. TENG, O. WADA, R. DE LA RUE and X. H. TANG

Pages:

117-119

DOI:

10.4028/www.scientific.net/AMR.31.117

Citation:

L. Gao et al., "In Situ Visualization of Layer Transitions during Convective Self-Assembly in a Sessile Drop", Advanced Materials Research, Vol. 31, pp. 117-119, 2008

Online since:

November 2007

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$35.00

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