A quantification of the interaction and spatial ordering in nano-arrays
Delanty, M., Levchenko, I., Ostrikov, K., Rebić, S., & Xu, S. (2009) A quantification of the interaction and spatial ordering in nano-arrays. Applied Surface Science, 255(17), pp. 7477-7482.
This paper reports on the use of a local order measure to quantify the spatial ordering of a quantum dot array (QDA). By means of electron ground state energy analysis in a quantum dot pair, it is demonstrated that the length scale required for such a measure to characterize the opto-electronic properties of a QDA is of the order of a few QD radii. Therefore, as local order is the primary factor that affects the opto-electronic properties of an array of quantum dots of homogeneous size, this order was quantified through using the standard deviation of the nearest neighbor distances of the quantum dot ensemble. The local order measure is successfully applied to quantify spatial order in a range of experimentally synthesized and numerically generated arrays of nanoparticles. This measure is not limited to QDAs and has wide ranging applications in characterizing order in dense arrays of nanostructures.
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|Item Type:||Journal Article|
|Keywords:||Nano-arrays, Quantum dots, Spatial order|
|Divisions:||Current > QUT Faculties and Divisions > Science & Engineering Faculty|
|Deposited On:||15 Jul 2014 01:04|
|Last Modified:||15 Jul 2014 23:50|
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