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Band-like electron transport in 2D quantum dot periodic lattices: the effect of realistic size distributions

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Abstract

Electron mobility in nanocrystal films has been a controversial topic in the last few years. Theoretical and experimental studies evidencing carrier transport by hopping or showing band-like features have been reported in the past. A relevant factor to analyze transport results is the progressive improvement in quantum dot superlattice fabrication, leading to better regimented structures for which band-like transport would be more relevant. This work presents an efficient model to compute temperature-dependent band-like electronic mobilities in 2D quantum dot arrays when a realistic quantum dot size distribution is considered. Comparisons with experimental results are used to estimate these size distributions, in good agreement with data of the samples.

Graphical abstract: Band-like electron transport in 2D quantum dot periodic lattices: the effect of realistic size distributions

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Publication details

The article was received on 12 Aug 2019, accepted on 05 Nov 2019 and first published on 07 Nov 2019


Article type: Paper
DOI: 10.1039/C9CP04465E
Phys. Chem. Chem. Phys., 2019, Advance Article

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    Band-like electron transport in 2D quantum dot periodic lattices: the effect of realistic size distributions

    E. S. Skibinsky-Gitlin, S. Rodríguez-Bolívar, M. Califano and F. M. Gómez-Campos, Phys. Chem. Chem. Phys., 2019, Advance Article , DOI: 10.1039/C9CP04465E

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