Electrical Excitation Decay Time in Chains of Nanoscale Non-Point Dipoles

• Main Author: Evgeny G. Fateev
• Format: Article
• Language: English
• Published: MDPI AG 2021-12-01
• Series: Nanomaterials
• Subjects: nanoscale; soft-colloids; self-assembly; decay time; electric excitations
• Online Access: https://www.mdpi.com/2079-4991/11/1/74

On the basis of a previously developed model of disperse systems containing non-point dipole particles self-assembled into chains inside a liquid substrate, the decay time of electrical excitations induced in dipoles by an external field is investigated. It was shown that when the external field is completely turned off (from <inline-formula><math display="inline"><semantics><msup><mn>10</mn><mrow><mo>−</mo><mn>6</mn></mrow></msup></semantics></math></inline-formula> V / m to <inline-formula><math display="inline"><semantics><msup><mn>10</mn><mrow><mn>6</mn></mrow></msup></semantics></math></inline-formula> V / m levels) at biologically significant low frequencies (for example, 13 Hz), the decay time of the excitations of nanoscale dipoles nonlinearly depends on the chain length. It was found that the decay time of excitations increases sharply (by four to five orders of magnitude), with an increase in the chain length more than 19–20 dipoles.