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The quantum tunneling effect leads electron transport in porphyrins
Date:9/1/2011

e of the porphyrins' conductivity as a function of distance as well as the temperature dependence "led to believe that the main transport mechanism was hopping. However, experiments and theoretical calculations carried out by the research team have shown that electron transport in these systems is actually led by the tunneling effect", says the researcher.

Computer Components

"The progressive miniaturization of integrated circuits make the electronic elements increasingly approach the atomic limit", says Garcia. Therefore, the research aims to find molecules that can perform the functions of electronic components since they can be produced in a simple and cost-effective way. The electron transport mechanism shown in this study may promote the use of porphyrins in devices for quantum computers. These computers are based on quantum mechanics, so the transport of electrons by tunneling may be appropriate for them. When electrons disappear and reappear at one electrode or another "they retain their wave nature, and therefore also their quantum properties", concludes Garcia.


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Contact: Marta del Amo
m.delamo@orgc.csic.es
0034-915-681-471
CSIC, Consejo Superior de Investigaciones Cientficas
Source:Eurekalert  

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