Skip to main content

News about Scitation

In December 2016 Scitation will launch with a new design, enhanced navigation and a much improved user experience.

To ensure a smooth transition, from today, we are temporarily stopping new account registration and single article purchases. If you already have an account you can continue to use the site as normal.

For help or more information please visit our FAQs.

banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.
1. Smoluchowski, M. v. , Experimentell Nachweisbare, der Üblichen Thermodynamik Widersprechende Molekularphänomene (Eng.: ‘Experimentally confirmed, molecular phenomena opposing the conventional thermodynamics’), Physikalische Zeitschrift 13, 12 (1912).
2. Feynman, R. P. , Sands, M. L. & Leighton, R. B. , The Feynman lectures on physics (Addison-Wesley, 1989).
3. van Oudenaarden, A. & Boxer, S. G. , Brownian ratchets: Molecular separations in lipid bilayers supported on patterned arrays, Science 285, 10461048 (1999);
3.J. Rousselet, L. Salome, A. Ajdari & J. Prostt., Directional motion of brownian particles induced by a periodic asymmetric potential, Nature 370, 446447 (1994).
4. Linke, H. et al., Experimental tunneling ratchets, Science 286, 23142317 (1999).
5. Khrapai, V. S. , Ludwig, S. , Kotthaus, J. P. , Tranitz, H. P. & Wegscheider, W. , Double-dot quantum ratchet driven by an independently biased quantum point contact, Phys. Rev. Lett. 97, 176803 (2006).
6. Fujiwara, A. , Nishiguchi, K. , Ono, Y. , Nanoampere charge pump by single-electron ratchet using silicon nanowire metal-oxide-semiconductor field-effect transistor, Appl. Phys. Lett. 92, 042102 (2008).
7. Roeling, E. M. et al., Organic electronic ratchets doing work, Nat Mater 10, 5155 (2011).
8. Reimann, P. , Brownian motors: noisy transport far from equilibrium, Physics Reports–Review Section of Physics Letters 361, 57265 (2002).
9. Hänggi, P. & Marchesoni, F. , Artificial Brownian motors: Controlling transport on the nanoscale, Rev Mod Phys 81, 387442 (2009).
10. Linke, H. , Downton, M. T. & Zuckermann, M. J. , Performance characteristics of Brownian motors, Chaos 15, 026111 (2005).
11. Derenyi, I. , Bier, M. & Astumian, R. D. , Generalized efficiency and its application to microscopic engines, Phys Rev Lett 83, 903906 (1999).
12. Coehoorn, R. , Pasveer, W. F. , Bobbert, P. A. & Michels, M. A. J. , Charge-carrier concentration dependence of the hopping mobility in organic materials with Gaussian disorder, Phys. Rev. B. 72, 155206 (2005).
13. Sharma, A. , Janssen, N. M. A. , Mathijssen, S. G. J. , de Leeuw, D. M. , Kemerink, M. & Bobbert, P. A. , Effect of Coulomb scattering from trapped charges on the mobility in an organic field-effect transistor, Phys. Rev. B 83, 125310 (2011).
14. Roeling, E. M. et al., Scaling of characteristic frequencies of organic electronic ratchets, Unpublished.
15. Scheinert, S. & Paasch, G. , Fabrication and analysis of polymer field–effect transistors, Phys Status Solidi A 201, 12631301 (2004).
16. See supplementary material at 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. [Supplementary Material]

Data & Media loading...


Article metrics loading...



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.


Full text loading...


Access Key

  • FFree Content
  • OAOpen Access Content
  • SSubscribed Content
  • TFree Trial Content
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd