Direct mapping of electrical noise sources in molecular wire-based devices
| العنوان: | Direct mapping of electrical noise sources in molecular wire-based devices |
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| المؤلفون: | Seunghun Hong, Shashank Shekhar, Duckhyung Cho, Hyungwoo Lee, Jae Yeol Park, Myungjae Yang |
| المصدر: | Scientific Reports SCIENTIFIC REPORTS(7) |
| بيانات النشر: | Springer Science and Business Media LLC, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | Multidisciplinary, Materials science, Molecular junction, business.industry, 02 engineering and technology, Substrate (electronics), Condensed Matter::Mesoscopic Systems and Quantum Hall Effect, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Noise (electronics), Article, Spectral line, 0104 chemical sciences, Molecular wire, Noise mapping, Optoelectronics, Molecule, Electronics, 0210 nano-technology, business |
| الوصف: | 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 molecular wire junctions exhibited characteristic 1/f2 behavior, which was used to identify the electrical signals from molecular wires. This method was applied to analyze the molecular junctions comprising various thiol molecules on a gold substrate, revealing that the noise in the junctions mainly came from the fluctuation of the thiol bonds. Furthermore, we quantitatively compared the frequencies of such bond fluctuations in different molecular wire junctions and identified molecular wires with lower electrical noise, which can provide critical information for designing low-noise molecular electronic devices. Our method provides valuable insights regarding noise phenomena in molecular wires and can be a powerful tool for the development of molecular electronic devices. |
| تدمد: | 2045-2322 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7119bacaefaf99cd7796ede76778e548Test https://doi.org/10.1038/srep43411Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....7119bacaefaf99cd7796ede76778e548 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20452322 |
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