Title :

Influence of Interface on the Charge Carrier Mobility of La<sub>2<\/sub>Ti<sub>2<\/sub>O<sub>7<\/sub> Layered Perovskite Thin Films Measured by the Time-of-Flight Method

Author(s) :

Leroy, Sebastien [Auteur]
Douali, Redouane [Auteur]
Legrand, Christian [Auteur]
Krasinski, Freddy [Auteur]
Blanchard, Florent [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Roussel, Pascal [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Saitzek, Sebastien [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Blach, Jean-Francois [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Journal title :

Acs Applied Electronic Materials

Abbreviated title :

ACS Appl. Electron. Mater

Volume number :

3

Pages :

3167-3176

Publisher :

American Chemical Society

Publication date :

2021-07-27

ISSN :

2637-6113

HAL domain(s) :

Chimie/Matériaux

English abstract : [en]

We report the electrical characterizations of La<sub>2<\/sub>Ti<sub>2<\/sub>O<sub>7<\/sub> thin films synthetized by pulsed laser deposition. We observe a significant change in I\u2013V curve in the presence of UV light. ...
Show more >We report the electrical characterizations of La<sub>2<\/sub>Ti<sub>2<\/sub>O<sub>7<\/sub> thin films synthetized by pulsed laser deposition. We observe a significant change in I\u2013V curve in the presence of UV light. The conduction mechanism can be described by two regimes: ohmic at low voltage and space charge limited conduction for higher voltage. Finally, for the first time to our knowledge, the charge carrier mobility of this material is studied; we use the time-of-flight method to investigate this property. We explain the evolution of the carrier mobility with the applied voltage by the presence of a depletion layer between the film and the gold contact, which affects the measurements.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

CNRS
Centrale Lille
ENSCL
Univ. Artois
Université de Lille

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Research team(s) :

Couches minces & nanomatériaux (CMNM)
Matériaux inorganiques, structures, systèmes et propriétés (MISSP)

Submission date :

2022-03-08T13:50:51Z