INVESTIGADORES
PONCE miguel Adolfo
congresos y reuniones científicas
Título:
Miguel Adolfo Ponce, Federico Schipani, Ednan Joanni, Miriam Susana Castro, Miguel Angel Ramírez Gil, ?Electrical behavior analysis of n-type CaCu3Ti4O12 thick films?
Autor/es:
MIGUEL PONCE; FEDERICO SCHIPANI; EDNAN JOANNI; MIRIAM CASTRO; MIGUEL RAMIREZ
Lugar:
Campos do Jordão
Reunión:
Congreso; XII Encontro da SBPMat, Campos do Jordão, Brasil, desde 09/29/2013 al 10/03/2013; 2013
Institución organizadora:
Sociedade Brasileira de Pesquisa em Materiais
Resumen:
Abstract. In this work n-type CaCu3Ti4O12 (CCTO) thick films obtained by screen printing and thermally treated at 500°C were studied. The role of CuO on the grain surfaces was considered in order to explain the electrical conduction under vacuum, air and CO atmospheres. The electrical response behavior of the thick films was analyzed considering the oxygen adsorption and subsequent diffusion into the grains at temperatures higher than 280°C. Tunnel currents were also calculated taking into account the donor concentration values for films in vacuum atmosphere