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Polymer Template (polymer + template)
Selected AbstractsHydrothermal Growth: Polymer-Templated Hydrothermal Growth of Vertically Aligned Single-Crystal ZnO Nanorods and Morphological Transformations Using Structural Polarity (Adv. Funct.ADVANCED FUNCTIONAL MATERIALS, Issue 18 2010Mater. Abstract Position-configurable, vertical, single-crystalline ZnO nanorod arrays are fabricated via a polymer-templated hydrothermal growth method at a low temperature of 93 °C. A sol-gel processed dense c -oriented ZnO seed layer film is employed to grow nanorods along the c -axis direction [0001] regardless of any substrate crystal mismatches. Here, one-beam laser-interference lithography is utilized to fabricate nanoscale holes over an entire 2-in. wafer during the preparation of the polymer template. As such, vertically aligned ZnO nanorods can be grown from the seed layer exposed at the bottom of each hole. Furthermore, morphological transformations of the ZnO nanorods into pencil-like, needle-like, tubular, tree-like, and spherical shapes are obtained by controlling the growth conditions and utilizing the structural polarity of the ZnO nanorods. [source] Polymer-Templated Hydrothermal Growth of Vertically Aligned Single-Crystal ZnO Nanorods and Morphological Transformations Using Structural PolarityADVANCED FUNCTIONAL MATERIALS, Issue 18 2010Ki Seok Kim Abstract Position-configurable, vertical, single-crystalline ZnO nanorod arrays are fabricated via a polymer-templated hydrothermal growth method at a low temperature of 93 °C. A sol-gel processed dense c -oriented ZnO seed layer film is employed to grow nanorods along the c -axis direction [0001] regardless of any substrate crystal mismatches. Here, one-beam laser-interference lithography is utilized to fabricate nanoscale holes over an entire 2-in. wafer during the preparation of the polymer template. As such, vertically aligned ZnO nanorods can be grown from the seed layer exposed at the bottom of each hole. Furthermore, morphological transformations of the ZnO nanorods into pencil-like, needle-like, tubular, tree-like, and spherical shapes are obtained by controlling the growth conditions and utilizing the structural polarity of the ZnO nanorods. [source] Creating In-Plane Metallic-Nanowire Arrays by Corner-Mediated ElectrodepositionADVANCED MATERIALS, Issue 35 2009Bo Zhang A novel template-assisted electrochemical approach to fabricate in-plane arrays of copper nanowires with tunable width varying from 25,nm to more than 200,nm, which is realized by successive nucleation of copper at the concave corner of the polymer template and the substrate, is reported. We demonstrate that this method can be applied for fabricating complicated structures. [source] Fabrication of Three-Dimensional Photonic Crystals Using Multibeam Interference Lithography and ElectrodepositionADVANCED MATERIALS, Issue 29 2009Masao Miyake High-quality 3D photonic crystals are fabricated through electrodeposition into a polymer template created by multibeam interference lithography. Complete infilling of the template is achieved through electrodeposition of Cu2O, and subsequent etching of the template results in a Cu2O/air photonic crystal with the exact inverse structure of the template (see figure). The resultant photonic crystal shows a high peak reflectance at theoretically predicted wavelength. [source] Hollow Inorganic Nanospheres and Nanotubes with Tunable Wall Thicknesses by Atomic Layer Deposition on Self-Assembled Polymeric Templates,ADVANCED MATERIALS, Issue 1 2007The construction of inorganic nanostructures with hollow interiors is demonstrated by coating self-assembled polymeric nano-objects with a thin Al2O3 layer by atomic layer deposition (ALD), followed by removal of the polymer template upon heating. The morphology of the nano-object (i.e., spherical or cylindrical) is controlled by the block lengths of the copolymer. The thickness of the Al2O3 wall is controlled by the number of ALD cycles. [source] | ||||||||||