Defects and charge transport in Mn-doped K0.5Na0.5NbO3 ceramics

Author:

Rafiq Muhammad Asif12345,Tkach Alexander12345,Costa Maria Elisabete12345,Vilarinho Paula Maria12345

Affiliation:

1. Department of Materials and Ceramic Engineering

2. CICECO – Aveiro Institute of Materials

3. University of Aveiro

4. 3810-193 Aveiro

5. Portugal

Abstract

KNN room-temperature conduction is associated with hole transport and can be suppressed by Mn-doping; a less leaky hysteresis loop is obtained. At high temperatures conduction is dominated by ionized oxygen vacancies motion. From grains and grain-boundaries resistance oxygen vacancies in KNN and Mn-doped KNN ceramics are mainly located at grain-boundaries.

Publisher

Royal Society of Chemistry (RSC)

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy

Reference51 articles.

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