| One-dimensional (1D) ordered directional arrangement of micro/nano structurearrays have been widely concerned in recent years,because they have wide applicationprospects on nanoelectronics and optoelectronics industrialization. Micro/nanowirearrays with controllable size and ordered structure can bring convenience for thefabrication of devices, and improve the application of materials and success rate offabrication devices. Therefore, this article mainly tells how to use tetrathiafulvalene（TTF）as a solute, dichloromethane as the solvent to fabricate TTF micro/nanowirearrays with the principle of solvent evaporation self-assembly. Experimental resultsare as follows:First of all, according to the principle of solvent evaporation induced molecularself-assembly, aligned TTF micro/nanowire arrays were fabricated with drop-castingmethod. By controlling experimental condition and looking for patterns, make thelocation and size of these micro/nanowire arrays basically controllable and can bedirectly dripped to the electrode for the fabrication of device just in one step. Thismethod is simple and useful, and has certain general applicability for other solubleorganic small molecular compound.Secondly, we also fabricated aligned TTF micro/nanowire arrays with the verticalpulling method. Ultralong aligned micro/nanowire arrays with large area can befabricated by controlling the concentration of the solution and pulling speed. By usingthis method, the micro/nanowire arrays density, width and location can be moreeffectively controlled, and have good repeatability. It is very meaningful for thefabrication of large area high density organic devices and circuits.Finally, we analyzed crystal structure of the TTF micro/nanowire arrays throughthe representation of the XRD, Raman spectrum and UV-vis spectrum and appliedthem to the device, further studying their photoelectric properties and providing a usefor reference to the micro/nano structure arrays of other soluble organic materials. |
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