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Thesis defence by Dorina (Theodora) PAPANASTASIOU

Published on November 3, 2020
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PhD Defense December 18, 2020
2 p.m. - Salle des Conseils Z-704, 7th floor, Building Z (Grenoble INP Phelma building)
Grenoble INP - Phelma
3 parvis Louis Néel - 38000 Grenoble
Accès : TRAM B arrêt Cité internationale
Free entrance - No registration

Investigation of Silver Nanowire Networks: physical properties, stability and integration into devices

Dorina PAPANASTASIOU

Dorina PAPANASTASIOU

Keywords:

Transparent electrode, transparent heaters, multi-scale, percolation, instability


cliquer pour voir la liste des membres du jury/clic here for the jury members

 


Abstract

Materials that are both electrically conductive and optically transparent are necessary in many devices such as: touch screens, organic LED, photovoltaics, transparent heaters and wearable sensors. Different technologies exist, the main ones being composed of oxide materials, which are ceramics and thus brittle. Silver nanowire (AgNW) networks exhibit high conductivity and transparency, and moreover they are flexible and even stretchable. The associated fabrication methods are low-cost and suitable for large scale production. The present PhD thesis focuses on fundamental issues concerning the failure of AgNW networks when submitted to electrical and/or thermal stresses. Experimental and modelling approaches have been used to better understand their properties in order to optimize them; with the final goal to successfully integrate them into devices. The devices addressed in the present work concern transparent heaters for bio-chips, energy harvesting and cold emission electron devices.


Membres du jury/ Jury members :
 

Prof.

A. Sylvestre

G2ELAB, UGA, Grenoble (France)

President of the jury

Prof.

L. Ressier

LPCNO, INSA de Toulouse (France)

Reviewer

Dr.

P. Poulin

CNRS, Université of Bordeaux (France)

Reviewer

Prof.

I. Goldthorpe

Dept.of Electrical & Computer Engineering, University of Waterloo (Canada)

Examiner

Dr.

J.-P.Simonato

CEA LITEN, Grenoble (France)

Examiner

Dr.

M.Pauly

Faculté de Chimie, Université de Strasbourg (France)

Examiner

Prof.

D.Bellet

LMGP, Grenoble INP, Grenoble (France)

Thesis Director

Dr.

D.Muñoz-Rojas

CNRS, Grenoble (France)

Thesis Co-director


 
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Date of update February 4, 2021

Université Grenoble Alpes