Abstract
An unprecedented path to synthesize 2D arrays of strings of titanium dioxide (TiO2) nanoparticles was developed from cooperative self-assembly of poly(styrene-block-2-vinyl pyridine (Ps-b-P2VP) copolymer and titanium tetra-isopropoxide (TTIP)-based sol-gel precursors. Hybrid block copolymer (BCP)/titania thin films with nanohole and nanonetwork morphologies, depending on the relative composition of the mixed solution, were obtained by one-step spin coating of the mixed solution on silicon wafers. TiO2 moieties merged form spherical nanoparticles where nanoholes were present at the center of individual nanoparticles. Experimental investigation suggested a rare scheme to induce 2D arrays of strings of TiO2 nanoparticles based on cooperative BCP self-assembly that can be extended to obtain a wide range of inorganic nanostructures with tailored composition, size, and shape.
Original language | English |
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Pages (from-to) | 1200-1202 |
Number of pages | 3 |
Journal | Chemistry of Materials |
Volume | 20 |
Issue number | 4 |
DOIs | |
State | Published - 26 Feb 2008 |