Electrical transport in ZnO nanotetrapods

Project no.: TA241
Project website: https://en.ktu.edu/projects/electrical-transport-in-zno-nanotetrapods/

Project description:

The aim of this project is to advance in integration of ZnO nanotetrapods into nanowire networks for their future application in chemoresistive sensing. Due to 1D nature of ZnO nanotetrapods and the ability to control its morphology (length and diameter) in the nanometer scale ZnO nanotetrapod further integration into nanowire network open wide perspectives: i.e nanowire diameter close to Debye length would be promising for sensing. However, to advance in applications electrical transport in single ZnO nanowire (or ZnO nanotetrapod leg) needs to be fully understood. Surface defects control the electrical transport in the nanowire as well as at the contacts, therefore length-dependent and temperature-dependent measurements would clarify the electrical transport mechanism.

Project funding:

As part of the Horizon 2020 project ASCENT+ (No 871130 and 654384).

Project results:

In this work we will prepare test structures and characterize electrical transport in ZnO nanowires, investigate the surface related defect influence on transport and contact resistivity and make a DFT calculation based model, which would further advance the integration of ZnO nanowire networks.

Period of project implementation: 2021-08-31 - 2022-02-28

Project coordinator: Tyndall National Institute

Project partners: Kaunas University of Technology

Simas Račkauskas

2021 - 2022

Institute of Materials Science, Research Laboratory of Vacuum and Plasma Processes