Direct mapping of electrical noise sources in molecular wire-based devices

Direct mapping of electrical noise sources in molecular wire-based devices

We report a noise mapping strategy for the reliable identification and analysis of noise sources in molecular wire junctions. Here, different molecular wires were patterned on a gold substrate, and the current-noise map on the pattern was measured and analyzed, enabling the quantitative study of noise sources in the patterned molecular wires. The frequency spectra of the noise from the molecula...

Actin: A molecular wire, an electrical cable?

Distilling Noise Sources for Digital Capture Devices

A procedure that enables the evaluation and further distillation of fixed pattern noise for digital capture devices is proposed. This method also allows for the direct calculation of the random, or temporal, noise contribution, devoid of fixed pattern components. Our method is consistent with a draft digital camera noise measurement standard under consideration through ISO 15739, but is intende...

Plasmon-induced electrical conduction in molecular devices.

Metal nanoparticles (NPs) respond to electromagnetic waves by creating surface plasmons (SPs), which are localized, collective oscillations of conduction electrons on the NP surface. When interparticle distances are small, SPs generated in neighboring NPs can couple to one another, creating intense fields. The coupled particles can then act as optical antennae capturing and refocusing light bet...

Nanoscale direct mapping of localized and induced noise sources on conducting polymer films.

The localized noise-sources and those induced by external-stimuli were directly mapped by using a conducting-AFM integrated with a custom-designed noise measurement set-up. In this method, current and noise images of a poly(9,9-dioctylfluorene)-polymer-film on a conducting-substrate were recorded simultaneously, enabling the mapping of the resistivity and noise source density (NT). The polymer-...