Highly ordered mesoporous silica microfibres produced by evaporative self-assembly and fracturing

Publication Type:
Journal Article
Citation:
Optical Materials Express, 2013, 3 (12), pp. 2028 - 2036
Issue Date:
2013-12-01
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Atomic force microscopy (AFM) of microfibres fabricated from the self-assembly and fracturing of silica nanoparticles reveals mesoporous structure with hcp packing. Pore size distribution for (20 - 30) nm sized particles are calculated to lie within r tet ~(2.2 - 3.3) nm and r oct ~(4.2 - 6.2) nm for the octahedral and tetrahedral sites. The experimentally measured distribution, using N 2 adsorption, is r ~(2 - 6) nm, in excellent agreement suggesting a highly controllable and periodic porosity using these structures. The potential for a number of material and device applications is discussed. © 2013 Optical Society of America.
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