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Transfer Printing (transfer + printing)
Selected AbstractsSoft Transfer Printing of Chemically Converted GrapheneADVANCED MATERIALS, Issue 20 2009Matthew J. Allen A transfer printing process that allows precise patterning of chemically converted graphene is reported. The use of a polydimethylsiloxane (PDMS) stamp and surface energy manipulation resulted in successfully transferring spin-coated materials from one substrate to another. The method is capable of transferring sharp features to precise locations. This represents large-scale, high-throughput transfer printing of chemically converted graphene and paves the way for future complementary circuit design. [source] Microcontact Transfer Printing of Zeolite MonolayersADVANCED MATERIALS, Issue 10-11 2009Fabio Cucinotta A simple nonchemical functionalization method for transferring and patterning zeolite monolayers is described. Polarization experiments show that zeolite monolayers filled with two different dyes lead to different emission colors. [source] Facile Fabrication of Monolithic 3D Porous Silica Microstructures and a Microfluidic System Embedded with the MicrostructureADVANCED FUNCTIONAL MATERIALS, Issue 9 2010ZuoYi Xiao Abstract Monolithic 3D porous silica structures are fabricated into a multilayer framework with a bimodal pore size distribution in the micrometer and sub-micrometer range. The fabrication , which involves directed assembly of colloidal spheres, transfer printing, and removal of a sacrificial template , yields robust and mechanically stable structures over a large area. The structure becomes monolithic upon pyrolyzing the stacked layers, which induces necking of the particles. The monolithic microstructures can easily be embedded in microchannels with the aid of photolithography, leading to the formation of a microfluidic system with a built-in microstructure in a site- and shape-controlled manner. Utilization of the system results in a fourfold increase in the mixing efficiency in the microchannel. [source] Printable Ferroelectric PVDF/PMMA Blend Films with Ultralow Roughness for Low Voltage Non-Volatile Polymer MemoryADVANCED FUNCTIONAL MATERIALS, Issue 17 2009Seok Ju Kang Abstract Here, a facile route to fabricate thin ferroelectric poly(vinylidene fluoride) (PVDF)/poly(methylmethacrylate) (PMMA) blend films with very low surface roughness based on spin-coating and subsequent melt-quenching is described. Amorphous PMMA in a blend film effectively retards the rapid crystallization of PVDF upon quenching, giving rise to a thin and flat ferroelectric film with nanometer scale , -type PVDF crystals. The still, flat interfaces of the blend film with metal electrode and/or an organic semi-conducting channel layer enable fabrication of a highly reliable ferroelectric capacitor and transistor memory unit operating at voltages as low as 15,V. For instance, with a TIPS-pentacene single crystal as an active semi-conducting layer, a flexible ferroelectric field effect transistor shows a clockwise I,V hysteresis with a drain current bistability of 103 and data retention time of more than 15,h at ±15,V gate voltage. Furthermore, the robust interfacial homogeneity of the ferroelectric film is highly beneficial for transfer printing in which arrays of metal/ferroelectric/metal micro-capacitors are developed over a large area with well defined edge sharpness. [source] Aligned, Ultralong Single-Walled Carbon Nanotubes: From Synthesis, Sorting, to Electronic DevicesADVANCED MATERIALS, Issue 21 2010Zhongfan Liu Abstract Aligned, ultralong single-walled carbon nanotubes (SWNTs) represent attractive building blocks for nanoelectronics. The structural uniformity along their tube axis and well-ordered two-dimensional architectures on wafer surfaces may provide a straightforward platform for fabricating high-performance SWNT-based integrated circuits. On the way towards future nanoelectronic devices, many challenges for such a specific system also exist. This Review summarizes the recent advances in the synthesis, identification and sorting, transfer printing and manipulation, device fabrication and integration of aligned, ultralong SWNTs in detail together with discussion on their major challenges and opportunities for their practical application. [source] Soft Transfer Printing of Chemically Converted GrapheneADVANCED MATERIALS, Issue 20 2009Matthew J. Allen A transfer printing process that allows precise patterning of chemically converted graphene is reported. The use of a polydimethylsiloxane (PDMS) stamp and surface energy manipulation resulted in successfully transferring spin-coated materials from one substrate to another. The method is capable of transferring sharp features to precise locations. This represents large-scale, high-throughput transfer printing of chemically converted graphene and paves the way for future complementary circuit design. [source] | ||||||||||