A low cost and simple route was presented to fabricate large-scale ordered nanoparticle arrays by... more A low cost and simple route was presented to fabricate large-scale ordered nanoparticle arrays by partial dissolution of ordered pore films (or monolayer inverse opal) in a solution. By this method, we have fabricated Fe2O3 and In2O3 hexagonal close-packed ...
ABSTRACT We develop a strategy to fabricate morphology-controlled two dimensional (2D) ordered ar... more ABSTRACT We develop a strategy to fabricate morphology-controlled two dimensional (2D) ordered arrays by solution-dipping sintered colloidal monolayer template. By heating colloid monolayer templates for different times, the morphology of ordered arrays can be controlled effectively, which is valuable to investigate the morphology-dependent optical, magnetic, electrochemical, catalytic properties of arrays. With increase of the heating time for templates, 2D ordered arrays with different morphologies can be fabricated in turn, such as, spherical pore array, honeycomb-shaped nanowall array, nanopillar array and regular network. Two kinds of morphology-controlled 2D periodic arrays, ferric oxide and silica, have been fabricated successfully by this way. This route is universal for synthesis of other compounds' ordered arrays with controlled morphology. This strategy has expanded the applications of the colloidal monolayers as templates to prepare ordered nanostructured functional arrays.
Large-scale, well-aligned and oriented wurtzite ZnS nanobelt arrays are fabricated by a simple so... more Large-scale, well-aligned and oriented wurtzite ZnS nanobelt arrays are fabricated by a simple solvothermal reaction and subsequent heat treatment. The nanobelts grow along the [0001] direction perpendicularly on a zinc substrate, which are about 30 nm in thickness, several hundreds of nanometers in width, and up to 4 μm in length. Importantly, such nanostructured arrays show a good field emission property with low turn-on field (3.8 V μm-1) and high field enhancement factor (~1800), which is ascribed to the top edges and corners of the freestanding and well aligned nanobelts, and good electric contact with the conducting substrate where they grow.
A low cost and simple route was presented to fabricate large-scale ordered nanoparticle arrays by... more A low cost and simple route was presented to fabricate large-scale ordered nanoparticle arrays by partial dissolution of ordered pore films (or monolayer inverse opal) in a solution. By this method, we have fabricated Fe2O3 and In2O3 hexagonal close-packed ...
ABSTRACT We develop a strategy to fabricate morphology-controlled two dimensional (2D) ordered ar... more ABSTRACT We develop a strategy to fabricate morphology-controlled two dimensional (2D) ordered arrays by solution-dipping sintered colloidal monolayer template. By heating colloid monolayer templates for different times, the morphology of ordered arrays can be controlled effectively, which is valuable to investigate the morphology-dependent optical, magnetic, electrochemical, catalytic properties of arrays. With increase of the heating time for templates, 2D ordered arrays with different morphologies can be fabricated in turn, such as, spherical pore array, honeycomb-shaped nanowall array, nanopillar array and regular network. Two kinds of morphology-controlled 2D periodic arrays, ferric oxide and silica, have been fabricated successfully by this way. This route is universal for synthesis of other compounds' ordered arrays with controlled morphology. This strategy has expanded the applications of the colloidal monolayers as templates to prepare ordered nanostructured functional arrays.
Large-scale, well-aligned and oriented wurtzite ZnS nanobelt arrays are fabricated by a simple so... more Large-scale, well-aligned and oriented wurtzite ZnS nanobelt arrays are fabricated by a simple solvothermal reaction and subsequent heat treatment. The nanobelts grow along the [0001] direction perpendicularly on a zinc substrate, which are about 30 nm in thickness, several hundreds of nanometers in width, and up to 4 μm in length. Importantly, such nanostructured arrays show a good field emission property with low turn-on field (3.8 V μm-1) and high field enhancement factor (~1800), which is ascribed to the top edges and corners of the freestanding and well aligned nanobelts, and good electric contact with the conducting substrate where they grow.
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Papers by Fengqiang Sun