Thermoelectric Properties of Bismuth Nanowires: Bismuth nanowires were electrochemically deposited in ion track-etched polymer membranes and their transport properties were studied. The Seebeck coefficients of single-and polycrystalline nanowires were measured as a function of wire diameter and temperature. For that purpose, a sample holder was designed that is capable of contacting nanowire ar...

We fabricated a series of glasses with the composition 94.7GeO2-5Al2O3-0.3Bi2O3PbO =0–24 mol. % . Characteristic absorption bands of bismuth centered at 500, 700, 800, and 1000 nm were observed. Adding PbO was found to decrease the strength of bismuth absorption. The addition of 3%–4% PbO resulted in a 50% increase in lifetime, a 20-fold increase in quantum efficiency, and a 28-fold increase in...

Seventy patients admitted to hospital with bismuth encephalopathy had repeated clinical and EEG examinations. All the patients exhibited myoclonic jerks, but no paroxysmal features ever appeared on EEG. Computed tomography showed cortical hyperdensities. Seizures were observed in 22 patients, but epileptic EEG patterns appeared only when the bismuth blood level was below 1500 microgram/1. It is...

A series of tris (α-naphthyl) bismuth (V) carboxylates (α-C10H7)3Bi(OCOR)2 where OCOR = p-trifluoromethyl mandelate, pmethoxy mandelate, salicylate, 2pyrazine carboxylate, mandelate have been synthesised and characterised by solid state infrared, H and C NMR spectroscopy, molecular weight and conductance measurements. The newly synthesized derivatives are monomeric in benzene and non ionic in a...

Mineral trioxide aggregate (MTA) is well known as an effective root canal filling material for endodontics therapy. Within MTA, bismuth oxide (Bi2O3) serving the radiopacifier still has biocompatibility concerns due to its mild cytotoxicity. In present study, we tried modify Bi2O3 by doping hafnium ions via sol-gel process and investigated effects of different ratios (Bi2-xHfxO3+x/2, x = 0–0.3)...

Bismuth ferrite, BiFeO3, is the only known room-temperature magnetic ferroelectric material. We demonstrate here, using neutron scattering measurements in high quality single crystals, that the antiferromagnetic and ferroelectric order parameters are intimately coupled. Initially in a single ferroelectric state, our crystals have a canted antiferromagnetic structure describing a unique cycloid....

Bismuth oxide may be a promising battery material due to the high gravimetric (690 mAh g(-1)) and volumetric capacities (6280 mAh cm(-3)). However, this intrinsic merit has been compromised by insufficient Li-storage performance due to poor conductivity and structural integrity. Herein, we engineer a heterostructure composed of bismuth oxide (Bi2O3) and bismuth sulphide (Bi2S3) through sulfuriz...

I N T R O D U C T I O N Stabilised ~ bismuth oxide based systems form a new generation of compounds capable of improved performance in oxygen pump and oxygen sensor applications compared to the conventional stabilised zirconia based materials. The high temperature isomorph of bismuth oxide, the ~ phase, is an excellent oxygen ion conductor (I). This phase can be stabilised to room temperature b...

An efficient and cost-effective approach in the synthesis process of the bismuth telluride (Bi2Te3) powders and pellets were developed based on a chemical solution route. The route consists of dissolving of both the bismuth (III) nitrate pentahydrate, Bi(NO3)3.5H2O, and tellurium dioxide, TeO2 into the same inorganic nitric a...

Quantum-confined Bi structures (quantum wells and quantum wires) are currently being studied for their varies novel properties. We now pursue the next level of quantum confinement in bismuth, quantum dots. In this work, we present a technique for the synthesis of bismuth nanoparticles using an inverse microemulsion method. To prevent air-oxidation in the characterization stage, poly(vinylpyrrol...