Deposition of bismuth sulfide and aluminum doped bismuth sulfide thin films for photovoltaic applications

Journal of Materials Science: Materials in Electronics - Binary bismuth sulfide (Bi2S3) and ternary aluminum-doped bismuth sulfide (Al@Bi2S3) thin films were prepared by the chemical bath...     

Clad-modified fiber-optic magnetic field sensing characteristics of anion-doped bismuth manganite nanopowders

Journal of Materials Science: Materials in Electronics - It has been reported that magnetoelectric multiferroics are beneficial to magnetic field sensor applications and optoelectronic devices. The...     

Facile synthesis of bismuth ferrite nanoparticles for ppm-level isopropanol gas sensor

Journal of Materials Science: Materials in Electronics - Breath gas detection has attracted significant attention for the early screening of lung cancer. In this paper, we synthesized bismuth...     

Enhancement of shielding ability using PbF2 in Fe-reinforced bismuth borate glasses

Journal of Materials Science: Materials in Electronics - The PFBBF-x glasses with the chemical structure...     

Study of mixed heavy metal fluoride bismuth borate glasses for optical applications

Journal of Materials Science: Materials in Electronics - To investigate the structural, optical and spectroscopic properties for possible applications in optical and shielding materials, the...     

Enhanced energy storage in Sn-doped sodium bismuth titanate lead-free relaxor ferroelectric ceramics

Journal of Materials Science: Materials in Electronics - SnO2-doped (Bi0.5Na0.5)0.93Ba0.07TiO3 (BNT7BT) ceramics were prepared via a conventional solid-state reaction method. Their phase...     

Formation of uniform single-crystalline bismuth sulfide nanowires under mixed-solvent condition

Uniform single-crystalline bismuth sulfide nanowires were prepared via a convenient solvothermal route under mixed-solvent condition. The nanowires were characterized by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), field-emission scanning electron microscopy (FESEM), energy-dispersive X-ray (EDX) spectrometry and UV-vis spectrophotometer. The growth mechanism of the one-dimensional nanostructures was discussed. The optical absorption band gap of the nanowires is about 1.7 eV, and the blue-shift phenomenon can be observed with respect of that of the bulk Bi2S3, which might bring in new types of applications.     

Photocatalytic activities of hydrothermal synthesized copper zinc tin sulfide nanostructures

Journal of Materials Science: Materials in Electronics - We report the hydrothermal synthesis of visible light absorbing and direct energy bandgap kesterite-structured Cu2ZnSnS4 (CZTS)...     

Cyclic microwave-assisted synthesis of flower-like and hexapod silver bismuth sulfide

Nanostructured AgBiS₂ with the shapes of flowers and hexapods was successfully produced from AgNO₃, BiCl₃ and sulfur sources (thioacetamide and thiourea) in ethylene glycol, by a cyclic microwave process. The phase was detected using X-ray diffraction (XRD) and selected area electron diffraction (SAED). Their SAED patterns were also in accordance with those of the simulations. Scanning and transmission electron microscopies (SEM and TEM) revealed the gradual transformation of nanostructured flowers into nanostructured hexapods, due to the microwave power increases. Their photoluminescence (PL) emissions were detected at the same wavelength of 435 nm, although they were produced under different conditions.     

Fabrication of three-dimensional snowflake-like bismuth sulfide nanostructures by simple refluxing

Three-dimensional snowflake-like bismuth sulfide nanostructures were successfully synthesized by simple refluxing at 160 °C in ethylene glycol, using bismuth citrate and thiourea as reactants. The crystal structures and morphologies of the products were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED) and energy dispersive X-ray spectroscopy (EDX). The Bi₂S₃ nanostructure was built up by highly ordered one-dimensional Bi₂S₃ nanorods, which was aligned in an orderly fashion. Ethylene glycol plays a critical role in the creation of bismuth sulfide three-dimensional nanostructures, which serves as an excellent solvent and structure director. Bismuth citrate, a linear polymer, also makes for the formation of the three-dimensional nanostructures.     

Synthesis and characterization of bismuth sulfide nanowires through microwave solvothermal technique

One-dimensional (1D) bismuth sulfide (Bi₂S₃) semiconducting nanowires have been successfully synthesized through mircrowave assisted solvothermal technique. The obtained product was characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS) and UV-vis spectrophotometry. The result shows that the Bi₂S₃ nanowires are single crystals grown along the [001] (c-axis) direction. The growth of Bi₂S₃ nanofibers with a preferential direction of c-axis can be ascribed to its particular structure. The optical measurement shows a blue shift relative to the bulk orthorhombic Bi₂S₃, which might be ascribed to the high aspect ratio of the nanowires.     

Pure red luminescence and concentration-dependent tunable emission color from europium-doped zinc sulfide nanoparticles

Journal of Materials Science: Materials in Electronics - Nano-sized Eu3+-doped ZnS particles were prepared by chemical precipitation method using polyethylene glycol as capping agent. The...     

Surface structure control and charge/discharge characteristics of bismuth anode materials by electrodeposition for magnesium-ion batteries

Journal of Materials Science: Materials in Electronics - Bismuth is considered one of the promising anode materials for the magnesium-ion secondary battery (MIB), but it has a short cycle life...     

Effect of terbium doping in bismuth ferrite nanoparticles for the degradation of organic pollutant under sunlight irradiation

Journal of Materials Science: Materials in Electronics - Herein, we have studied the influence of terbium (Tb) doping in bismuth ferrite (BiFeO3/BFO) nanoparticles towards its photocatalytic...     

The doping of SZC solders with bismuth to improve their thermal and tensile characteristics for microelectronic applications

Journal of Materials Science: Materials in Electronics - Sn–Zn–Cu is one of the most popular soldering alloys, especially when it has been doped with Bi, which has proved very...     

Preparation and supercapacitive performance of manganese‐cobalt sulfide/silver nanowires/graphene ternary nanocomposites

Journal of Materials Science: Materials in Electronics - Bimetallic sulfides are potential and attractive electrode materials for high-performance supercapacitors. In this study, the...     

Investigation of interfacial reactions between metallic substrates and n-type bulk bismuth telluride thermoelectric material

Journal of Materials Science - In practical applications of bismuth telluride thermoelectric materials, the materials need to be connected with a metallic electrode before they can be used;...     

Intercalation of copper into bismuth telluride

The intercalation and leaching of copper into and out of bismuth telluride was investigated using aqueous and solid state electrochemical methods. It was found that copper intercalates up to a concentration of 3 mg/g bismuth telluride. Copper may also react with bismuth telluride to form copper telluride (Cu₂Te). Boiling hydrochloric acid leaches, or controlled potential electrochemical leaches, were effective at removing intercalated copper from bismuth telluride, returning the bismuth telluride to its original, undoped state. E.m.f. measurements using a solid, copper-ion conducting electrolyte resulted in copper activities of between 0.000 73 and 0.044 for intercalated bismuth telluride. An effective copper diffusion coefficient of 4×10^–5 cm²s^–1 was measured for a sintered polycrystalline bismuth telluride pellet at 483 K.This work was conducted at the Department of Materials Science and Metallurgy, University of Cambridge, Cambridge CB2 3Q2, UK     

Mitigation of whisker growth by improving the creep properties of Sn coating with bismuth

Journal of Materials Science - Bismuth has been proved a promising lead-free element that can mitigate whisker growth on Sn coatings. It is generally believed that the formation of the equiaxed...     

Effects of sulfur content in tube steel welds on sulfide cracking

Materials Science - Results are presented on the tendency to stress corrosion cracking in NACE solution for welded joints in tube steel with sulfur contents from 0.002 to 0.028%. Threshold stresses...