Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, 01328, Dresden, Germany.
Cluster of Excellence Center for Advancing Electronics Dresden (cfaed), TU Dresden, 01062, Dresden, Germany.
Sci Rep. 2021 Jan 21;11(1):1922. doi: 10.1038/s41598-021-81178-8.
We introduce a method based on directed molecular self-assembly to manufacture and electrically characterise C-shape gold nanowires which clearly deviate from typical linear shape due to the design of the template guiding the assembly. To this end, gold nanoparticles are arranged in the desired shape on a DNA-origami template and enhanced to form a continuous wire through electroless deposition. C-shape nanowires with a size below 150nm on a [Formula: see text] substrate are contacted with gold electrodes by means of electron beam lithography. Charge transport measurements of the nanowires show hopping, thermionic and tunneling transports at different temperatures in the 4.2K to 293K range. The different transport mechanisms indicate that the C-shape nanowires consist of metallic segments which are weakly coupled along the wires.
我们介绍了一种基于定向分子自组装的方法来制造和电特性化 C 形金纳米线，由于模板设计引导了组装，这些纳米线明显偏离了典型的线性形状。为此，金纳米粒子被排列在 DNA 折纸模板上的所需形状，并通过无电沉积增强形成连续的线。在 [Formula: see text] 衬底上，尺寸小于 150nm 的 C 形纳米线通过电子束光刻与金电极接触。纳米线的电荷输运测量表明，在 4.2K 至 293K 的温度范围内，存在着跳跃、热电子和隧穿输运。不同的输运机制表明，C 形纳米线由沿纳米线弱耦合的金属段组成。
