Flow : a study of electron transport through networks of interconnected nanoparticles

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Flow : a study of electron transport through networks of interconnected nanoparticles

Type: Doctoral Thesis
Title: Flow : a study of electron transport through networks of interconnected nanoparticles
Author: Blok, S.
Journal Title: Casimir PhD Series
Issue Date: 2018-07-04
Keywords: Nanoparticle networks
Electron transport
cotunneling
m-LEEP
Disorder
Molecular switches
Low-energy electron microscopy
Abstract: This thesis describes a study from both a theoreticaL and an experimental point of view. I deveLop a new ru•deL for electron transport through networks of interconnected narnzparticLes In the Coulomb blockade regime and compare this ru•del tc experimental data. The main conclusion from this study is that cotunneLing does not give any significant contribution tc electron transport. Instead, transport is governed by perccIatLng paths thrcugh the netwcrk. Here, disorder In the array (in the form of variation of the Coulomb chargLng energy of the nanzparticLes) is the domLnating factor. Morecver, usLng Low—energy electron potentiometry, I visualise the f Low cf electrcns through the network. We find here that the contact resistance is negligibLe, and Chat the electi•zn flow 13 not impeded by small irregularities such as small and grain boundaries .
Promotor: Supervisor: Molen, S.J. van der , Ruitenbeek J.M. van
Faculty: Science
University: Leiden
Uri: urn:isbn:9789085933519
Handle: http://hdl.handle.net/1887/63527
 

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application/pdf Summary in English 254.2Kb View/Open
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