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Major advance in understanding how nanowires form
Date:3/28/2011

, which controls the growth of the nanowires. It appears that the shape of the droplet depends on the amount of atoms from group 3 in the periodic system, which make up half of the atoms in the nanowire crystal. The other half, atoms from group 5 in the periodic system, are absorbed by the drop and hence the atoms organize themselves into a lattice, and the nanowire crystal will grow.

"We have shown that it is the shape of the droplet, which determines what kind of crystal structure the nanowires obtain and with this knowledge it will be easier to improve the properties of the nanowires," explains Peter Krogstrup and continues: "The crystal structure has an enormous influence on the electrical and optical properties of the nanowires and you would typically want them to have a certain structure, either cubic or hexagonal. The better nanowires we can make the better electronic components we can make to the benefit of us all," says Peter Krogstrup, whose research is conducted in collaboration with the firm SunFlake A/S, which is located at the Nano-Science Center at the University of Copenhagen. The company is working to develop solar cells of the future based on nanowires.


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Contact: Peter Krogstrup
krogstrup@fys.ku.dk
452-671-5191
University of Copenhagen
Source:Eurekalert

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