Acridinium Based Organic Molecular Single Electron Transistor for High Performance Switching Applications
| Autor: | Anurag Srivastava, S. J. Ray, Kumar Gaurav, Boddepalli SanthiBhushan |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Anthracene
Materials science Conductance Coulomb blockade 02 engineering and technology 021001 nanoscience & nanotechnology Computer Science Applications chemistry.chemical_compound Delocalized electron chemistry Quantum dot Chemical physics Molecule Density functional theory Electrical and Electronic Engineering 0210 nano-technology Acene |
| Zdroj: | IEEE Transactions on Nanotechnology. 18:1148-1155 |
| ISSN: | 1941-0085 1536-125X |
| Popis: | The conductance and switching behaviour of acene series derivative `Acridinium' based organic molecular single electron transistor have been assessed in the vicinity of Density Functional Theory (DFT) and Non-equilibrium Green's Function (NEGF) formalisms based ab-initio approach. Computationally, acridinium has been obtained by nitrogen substitution of its parent molecule anthracene. Our analysis of structural and chemical properties predicts relatively high electrical conductivity for acridinium than anthracene owing to the high degree of delocalization associated with the former. The performance of acridinium as a quantum dot of SET has been studied by calculating charging energies and charge stability diagram. It has been observed that acridinium SET is power efficient and possesses better switching behaviour than anthracene and other acene derivative SETs reported so far. Moreover, the negative gate bias operation of acridinium SET is observed to be energetically more favourable than the positive bias operation. |
| Databáze: | OpenAIRE |
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