The hydrothermal synthesis and formation mechanism of single-crystalline perovskite BiFeO₃ microplates with dominant (012) facets

Abstract

Single-crystal BiFeO3 (BFO) microplates with dominant (012) facets were successfully synthesized by a facile one-pot hydrothermal method. The adsorption behaviour of the organic ligands may play a key role in the formation of the BFO microplates.

Low-temperature fabrication of Bi25FeO40/rGO nanocomposites with efficient photocatalytic performance under visible light irradiation

“…With the extension of reaction time, the original Bi 25 FeO 40 phases can transform to rhombohedral phases gradually. 17 Compared to perovskite-type BiFeO 3 , there has seldom research focus on the optical properties of Bi 25 FeO 40 in previous studies. Top seeded solution growth technique has been used to produce Bi 25 FeO 40 single crystals for the rst time and the optical absorption measurements were performed in a broad spectral (IR, VIS and UV).…”

Ferroelectric Polarization Induced Selective Growth of BiFeO3 Nanocrystals with a Remarkable Ferromagnetism

“…However, aggregation induced by subsequent calcination procedure remains challenging. In comparison, the hydrothermal method provides an alternative approach to prepare BFO with a high crystallization level under relatively low temperature (≤ 200 °C) . Moreover, an introduction of special surfactants or some changes of process parameters during the hydrothermal process could effectively control the size and morphology.…”

“…Moreover, an introduction of special surfactants or some changes of process parameters during the hydrothermal process could effectively control the size and morphology. BFO with well‐defined morphology such as nanowires, submicrocubes, microplates, cubo‐octahedron were successfully synthesized. In principle, the nucleation and growth rate of BFO crystals could be facilely tuned by the alkaline concentration .…”

“…In principle, the nucleation and growth rate of BFO crystals could be facilely tuned by the alkaline concentration . Nevertheless, the size of BFO crystals generally ranges from several hundred nanometers to micrometers,, and well‐dispersed and single‐crystal BFO nanostructures synthesized via a hydrothermal method have been rarely documented. One may expect that this is attributed to a low nucleation rate and subsequent high growth rate for BFO during the hydrothermal reaction process.…”

Sol-gel synthesis and characterisation of (Nd, Cr) co-doped BiFeO3nanoparticles

“…[4] Different syntheses methods like solid state, [5] sol-gel, [6] hydrothermal, [7] soft-chemistry route, [8] etc., are employed for the formation of pure BFO. The structural distortion in BFO can be induced by applying high pressure [9] or by doping, [10] which in turn influences the multiferroric properties.…”