The performance of organic electronic ratchets
Source abstract
Abstract
Organic electronic ratchets rectify time-correlated external driving forces, giving output powers that can drive electronic circuitry. In this work their performance characteristics are investigated using numerical modeling and measurements. It is shown how the characteristic parameters of the time–varying asymmetric potential like length scales and amplitude, as well as the density and mobility of the charge carriers in the device influence the performance characteristics. Various ratchet efficiencies and their relations are discussed. With all settings close to optimum, a ratchet with charge displacement and power efficiencies close to 50% and 7% respectively is obtained.
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Research context
OpenAlex topics: stochastic dynamics and bifurcation · Nanopore and Nanochannel Transport Studies · Mechanical and Optical Resonators
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Affiliations
Eindhoven University of Technology 1 Applied Physics, , PO Box 513, Eindhoven, the Netherlands
Eindhoven University of Technology 2 COBRA Research Institute, , PO Box 513, Eindhoven, the Netherlands
References (16)
Show source-provided references
1. Experimentell Nachweisbare, der Üblichen Thermodynamik Widersprechende Molekularphänomene (Eng.: ‘Experimentally confirmed, molecular phenomena opposing the conventional thermodynamics’)
2. 1989
3. Brownian ratchets: Molecular separations in lipid bilayers supported on patterned arrays10.1126/science.285.5430.1046 ↗
4. Directional motion of brownian particles induced by a periodic asymmetric potential10.1038/370446a0 ↗
5. Experimental tunneling ratchets10.1126/science.286.5448.2314 ↗
6. Double-dot quantum ratchet driven by an independently biased quantum point contact10.1103/PhysRevLett.97.176803 ↗
7. Nanoampere charge pump by single-electron ratchet using silicon nanowire metal-oxide-semiconductor field-effect transistor10.1063/1.2837544 ↗
8. Organic electronic ratchets doing work10.1038/nmat2922 ↗
9. Brownian motors: noisy transport far from equilibrium
10. Artificial Brownian motors: Controlling transport on the nanoscale10.1103/RevModPhys.81.387 ↗
11. Performance characteristics of Brownian motors10.1063/1.1871432 ↗
12. Generalized efficiency and its application to microscopic engines10.1103/PhysRevLett.83.903 ↗
13. Charge-carrier concentration dependence of the hopping mobility in organic materials with Gaussian disorder10.1103/PhysRevB.72.155206 ↗
14. Effect of Coulomb scattering from trapped charges on the mobility in an organic field-effect transistor10.1103/PhysRevB.83.125310 ↗
15. Fabrication and analysis of polymer field–effect transistors10.1002/pssa.200404335 ↗
16. See supplementary material at http://dx.doi.org/10.1063/1.3677934 for device current vs drive amplitude and device current vs. phase and frequency of driving potential are discussed. This material is available free of charge via the Internet.