Electrospun Bismuth Ferrite Nanofibers for Potential Applications in Ferroelectric Photovoltaic Devices

Abstract

Bismuth ferrite (BFO) nanofibers were synthesized via a sol-gel-based electrospinning process followed by thermal treatment. The influences of processing conditions on the final structure of the samples were investigated. Nanofibers prepared under optimized conditions were found to have a perovskite structure with good quality of crystallization and free of impurity phase. Ferroelectric and piezoelectric responses were obtained from individual nanofiber measured on a piezoelectric force microscope. A prototype photovoltaic device using laterally aligned BFO nanofibers and interdigital electrodes was developed and its performance was examined on a standard photovoltaic system. The BFO nanofibers were found to exhibit an excellent ferroelectric photovoltaic property with the photocurrent several times larger than the literature data obtained on BFO thin films.

Enhanced UV-Vis Photodegradation of Nanocomposite Reduced Graphene Oxide/Ferrite Nanofiber Films Prepared by Laser-Assisted Evaporation

“…For instance, the inherent advantages of net-shaping methodologies like electrospinning in the fabrication of oxide nanofibers with high porosity, large surface areas and interconnectivity have led to significant improvements in the device performance for applications such as Li-ion batteries, gas sensors, water splitting, etc. [11][12][13][14][15][16]. In addition, highly reduced graphene oxide (rGO) is a two-dimensional material of great interest in many application fields due to its large surface area, high electron mobility and conductivity [17].…”

Recent Advances in Ferroelectric Nanosensors: Toward Sensitive Detection of Gas, Mechanothermal Signals, and Radiation

“…They exhibit numerous excellent properties such as direct and inverse piezoelectricity, pyroelectricity, ferroelectric photovoltaicity, and nonlinear optical activity. This exceptional combination of various properties makes them attractive for application in field effect transistors [5], nonvolatile memories [6], capacitors [7,8], photovoltaic cells [9,10], actuators [11], piezoelectric energy harvesters [8,[12][13][14][15], thermal imaging cameras, and electro-optic devices [16]. Nanoferroelectrics are also commonly used in sensors, since the polarization is influenced by various external conditions, including an electric field, mechanical deformation, temperature, and chemical and biological factors.…”

“…Zero-and one-dimensional ferroelectric nanomaterials have been fabricated using different processing methods, e.g., vapor-phase (Sb 2 S 3 nanowires [17], SbSI nanorods [18]), hydrothermal (BaTiO 3 nanowires [14,[19][20][21], BaTiO 3 nanoparticles [22], BiFeO 3 [23], KNbO 3 nanorods [24], KNbO 3 nanowires [25]), solvothermal (LiNbO 3 nanocrystals [26]), colloidal (Sb 2 S 3 nanowires [27]), sol-gel (PbTiO 3 nanotubes [28,29]), mechanochemically assisted (Bi 4 Ti 3 O 12 [30]), electrospinning (BiFeO 3 nanofibers [9], poly(vinylidene fluoride) nanofibers [31]), and sonochemical (SbSI nanowires [32][33][34][35]). More information about recent trends in fabrication techniques of 0D and 1D ferroelectric nanomaterials can be found elsewhere [2,36].…”

Fabrication and property of Nd-doped BiFeO3 nanofibers by electrospinning

“…14 Among the various synthesis methods, electrospinning is the most attractive because of its convenience, simplicity, and low cost. 15,16 Several groups tried to modify the structure of BiFeO 3 nanofibers by substitution of the rare earth elements(La 3+ , Gd 3+ , Tb 3+ , Dy 3+ ) 11,13,17,18 at A-site, and their electrical and magnetic properties have been enhanced. However, to the best of our knowledge, not much work was available on Nd-doped BiFeO 3 nanofibers using electrospinning.…”