| 초록 |
The controlled assembly of nanowires is an important issue in the development of bottom-up-based nanoscale devices. Although recent progress in the post-growth assembly of nanowires has led to the alignment and possible to produce various devices, these methods still suffer from reliability and reproducibility. Here, we present that the gas sensing characteristics of three-dimensional nanostructures based on SnO2 fabricated via solvent-assisted nanotransfer-printing technique. A solvent-assisted nanotransfer-printing technique can produce almost perfectly aligned 2D SnO2 nanowire arrays. After the first printing, the second printing is conducted by rotating the substrate by 90o, which resulted crossed-wire structures. We also demonstrate reliable printing of high-density metal oxide nanostructures for alcohol detection sensors with excellent responsiveness. This approach can be extended to a variety of other sensor devices requiring uniform and stable gas sensing signals. |
