By Manabu Kiguchi
This publication provides a multidisciplinary method of single-molecule electronics. It features a entire evaluation of the sphere, from the synthesis and layout of molecular applicants to the favourite experimental strategies, complemented through an in depth theoretical description. This all-inclusive process presents the reader with the much-needed standpoint to completely comprehend the far-reaching ramifications of single-molecule electronics. moreover, a few cutting-edge issues are mentioned, together with single-molecule spectro-electrical equipment, electrochemical DNA sequencing know-how, and single-molecule chemical reactions. because of this integrative attempt, this booklet can be used as an introductory textbook to either graduate and complicated undergraduate scholars, in addition to researchers with pursuits in single-molecule electronics, natural electronics, floor technological know-how, and nanoscience.
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Extra info for Single-Molecule Electronics: An Introduction to Synthesis, Measurement and Theory
The gap distance was held during the measurement. 2 Electromechanical Responses The breaking process of the junction is studied in more detail by using an atomic force microscope (AFM) [47–51]. The force observed during the breaking process combined with the electrical conductance gives information on the bonding structure between molecules and electrodes. , electromechanical responses, of the single-molecule junction that can be used to design single-molecule electronic devices. In this section, the procedure and an example of the measurement are briefly introduced.
17a). When a voltage applied to the wire is increased, the electrical current starts to collapse at a certain voltage (Fig. 17b, denoted 1) where the electromigration process begins. The voltage should be quickly decreased to avoid the catastrophic breaking of the wire (Fig. 17b, denoted 2–3) and then increased again to cause the next electromigration process (Fig. 17b, denoted 4). By repeating this cycle, the wire is narrowed to reach atomic size and finally a gap is formed. This process can be monitored 48 R.
18. The electromigration technique may have a potential for a mass production of gap arrays with a separation less than 1 nm which is difficult to be fabricated by 2 Methods to Determine Electrical Conductance of Single-Molecule Junctions 49 Fig. 18 Schematic of device (inset) and current-voltage characteristics of a BDT molecule junction at various gate voltages. S and D represents source and drain electrodes created by the electromigration of the gold electrode. G represents Al gate electrode.