El-Zubir Osama, Kynaston Emily L, Gwyther Jessica, Nazemi Ali, Gould Oliver E C, Whittell George R, Horrocks Benjamin R, Manners Ian, Houlton Andrew
Chemical Nanoscience Labs , School of Natural and Environmental Sciences , Newcastle University , Newcastle upon Tyne NE1 7RU , UK . Email:
School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , UK.
Chem Sci. 2020 Jun 1;11(24):6222-6228. doi: 10.1039/d0sc02011g. eCollection 2020 Jun 28.
The bottom-up assembly of nanoelectronic devices from molecular building blocks is a target of widespread interest. Herein we demonstrate an seeded growth approach to produce a nanowire-based electrical device. This exploits the chemisorption of block terpolymer-based seed fibres with a thiophene-functionalised corona onto metal electrodes as the initial step. We then use these surface-bound seeds to initiate the growth of well-defined one-dimensional fibre-like micelles the seeded growth method known as "Living crystallisation-driven self-assembly'' and demonstrate that they are capable of spanning an interelectrode gap. Finally, a chemical oxidation step was used to transform the nanofibres into nanowires to generate a two-terminal device. This seeded growth approach of growing well-defined circuit elements provides a useful new design tool for bottom-up device fabrication.
利用分子构建块自下而上组装纳米电子器件是一个备受广泛关注的目标。在此，我们展示了一种用于制造基于纳米线的电气设备的种子生长方法。该方法首先利用基于嵌段三元共聚物的种子纤维与噻吩功能化的冠层在金属电极上的化学吸附作用。然后，我们使用这些表面结合的种子来引发定义明确的一维纤维状胶束的生长，即所谓的“活性结晶驱动自组装”的种子生长方法，并证明它们能够跨越电极间隙。最后，通过化学氧化步骤将纳米纤维转化为纳米线，以生成两终端器件。这种生长定义明确的电路元件的种子生长方法为自下而上的器件制造提供了一种有用的新设计工具。
