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Hidrothermal topochemical conversion of Bi4Ti3O12 nanoplatelets for formation of functional heterostructural perovskite titanates

Author(s): Alja Čontala (Author), Marjeta Maček Kržmanc (Supervisor)

Year: 2023

Type: Doctoral dissertation

In the view of designing new nanostructured materials and tailoring their functional properties, understanding the nucleation and crystal growth mechanisms is becoming increasingly important. Nowadays, one of the most addressed scientific and social problems are those facing energy shortage and global warming. People started to realize the value and importance …

Defect chemistry and hardening of ferroelectric cobalt-doped bismuth ferrite ceramics: doctoral thesis

Author(s): Maja Makarovič (Author), Tadej Rojac (Supervisor), Sverre Magnus Selbach (Co-Supervisor)

Year: 2020

Type: Doctoral dissertation

Bismuth ferrite, BiFeO3 (BFO), has been recognized as a promising lead-free material for high-temperature piezoelectric applications due to its high Curie temperature of 825 °C. However, the practical use of BFO has been limited in particular by its elevated electrical conductivity. In addition, BFO shows the characteristics of ferroelectric hardening, …