Nanostructures of Bismuth Sulphide: Synthesis and Electrical Properties

Abstract

Bismuth ammonium citrate complex (C24H20Bi4O28 x 6NH3 x 10H2O) interacted with sodium sulphide (Na2S) in presence of beta-cyclodextrin (beta-CD) yielding Bi2S3 nanospheres. Solvothermal treatment of the bismuth complex and dimethyl sulphoxide (DMSO) produced Bi2S3 nanorods. Reaction conditions were optimized to investigate the morphology evolution of the product. Electrical properties of the nanorods were monitored in details.

Large-scale synthesis of bismuth sulfide nanorods by microwave irradiation

“…The releasing Bi 3+ ions can coordinate with Tu to create an environment which benefits the formation of Bi 2 S 3 nanorods. In this study, Bi(NO 3 ) 3 and BiCl 3 was also introduced into DMF solution (S17 and S18), instead of bismuth citrate. As a result, three-dimensional nanoflowers of corn-like nanorods fabricated by using Bi(NO 3 ) 3 as precursor (Fig.…”

“…As a good semiconducting main-group metal chalcogenide with a direct energy band gap ranging from 1.2 to 1.7 eV, bismuth sulfide (Bi 2 S 3 ) has many potential applications in the fabrication of optoelectronic and thermoelectric cooler devices, as well as in photovoltaic and thermoelectric transport, photoconductivity, electrical photoresponse, and field-emission [1][2][3][4][5]. Bi 2 S 3 has also been proposed as a good electrode for liquid-junction solar cells [6,7].…”

The Growth of Bismuth Sulfide Nanorods from Spherical-Shaped Amorphous Precursor Particles under Hydrothermal Condition

“…Bismuth sulfide (Bi 2 S 3 ) is a direct band gap semiconductor with large absorption coefficient, high band gap energy (1.3-1.7 eV) [1], and having energy conversion efficiency close to theoretical maximum attainable value. These qualities make Bi 2 S 3 potentially suitable for the fabrication of optoelectronic and thermoelectric devices as well as applications in photovoltaic thermoelectric transport, photoconductivity, electrical photoresponse, and field emission [2][3][4][5][6][7]. Nanostructures of Bi 2 S 3 , especially the one-dimensional (1D) nanostructures (such as wires, rods, tubes, and ribbons), are in fact considered to be the best contenders for these applications due to quantum confinement effect [8,9].…”

Organic bromide-assisted one-pot synthesis of Bi2S3 nanorods using DMSO as a sulfur supply

“…The formation of these complexes proves the association of Bi and methanesulfonic acid, a product generated by the DMSO decomposition. 19 Further sulfurization of these complexes may produce Bi 2 S 3 , although details of the sulfurization process could not be identified here.…”

“…18 DMSO, in another point of view, can be exploited as a sulfur supply in synthesizing Bi 2 S 3 . 19 To be used as a supply of sulfur, DMSO must be decomposed by heating at a high temperature (over 200 °C) 18 for a long time (∼24 h) 19 due to its inherent stability in the absence of a catalyst. In the presence of bromine or bromide compounds, the catalysts of the DMSO decomposition, the decomposition occurs at lowered temperatures.…”