TY - JOUR
T1 - Polar properties of hydrothermally synthesized BiFeO3 thin films
AU - Velasco-Davalos, Ivan A.
AU - Moretti, Mathieu
AU - Nicklaus, Mischa
AU - Nauenheim, Christian
AU - Li, Shun
AU - Nechache, Riad
AU - Gomez-Yanez, Carlos
AU - Ruediger, Andreas
N1 - Funding Information:
Financial support from Fonds de recherché du Quebec—Nature et technologies, FRQNT; The Natural sciences and engineering research council of Canada, NSERC; and the Canadian institute for photonics innovations, CIPI, is gratefully acknowledged. The collaboration between C.G.-Y. and A.R. was generously supported by MRIFCE and Conacyt.
PY - 2014/6
Y1 - 2014/6
N2 - Multiferroic bismuth ferrite (BiFeO3) has attracted considerable attention due to applications related to the bulk photovoltaic effect in which the direction of polarization determines the direction of the photocurrent. Epitaxial thin films are produced by means of techniques that usually require high temperature processes. The hydrothermal method can be seen as an alternative route to obtain highly textured thin films in quantities compatible with batch processing; nevertheless, the structural, dielectric and electric properties are generally affected by the presence of hydrogen and other reaction by-products. In this work, functional and highly textured BiFeO3 films were successfully produced on metallic SrTiO3:Nb (0.5 wt.%) (100) substrates via hydrothermal synthesis. X-ray diffraction (XRD) and Atomic Force Microscopy (AFM) were used to analyze the structural properties of the films. Piezoresponse Force Microscopy (PFM) and Photoconductive Atomic Force Microscopy (Pc-AFM) were used to determine their functional properties. We show the polarization switching and confirm the presence of the bulk photovoltaic effect for the first time in hydrothermally synthesized BiFeO3.
AB - Multiferroic bismuth ferrite (BiFeO3) has attracted considerable attention due to applications related to the bulk photovoltaic effect in which the direction of polarization determines the direction of the photocurrent. Epitaxial thin films are produced by means of techniques that usually require high temperature processes. The hydrothermal method can be seen as an alternative route to obtain highly textured thin films in quantities compatible with batch processing; nevertheless, the structural, dielectric and electric properties are generally affected by the presence of hydrogen and other reaction by-products. In this work, functional and highly textured BiFeO3 films were successfully produced on metallic SrTiO3:Nb (0.5 wt.%) (100) substrates via hydrothermal synthesis. X-ray diffraction (XRD) and Atomic Force Microscopy (AFM) were used to analyze the structural properties of the films. Piezoresponse Force Microscopy (PFM) and Photoconductive Atomic Force Microscopy (Pc-AFM) were used to determine their functional properties. We show the polarization switching and confirm the presence of the bulk photovoltaic effect for the first time in hydrothermally synthesized BiFeO3.
UR - http://www.scopus.com/inward/record.url?scp=84901635145&partnerID=8YFLogxK
U2 - 10.1007/s00339-013-7952-4
DO - 10.1007/s00339-013-7952-4
M3 - Artículo
SN - 0947-8396
VL - 115
SP - 1081
EP - 1085
JO - Applied Physics A: Materials Science and Processing
JF - Applied Physics A: Materials Science and Processing
IS - 3
ER -