Synthesis of Bi₂Se₃ Nanosheets by Microwave Heating Using an Ionic Liquid

Abstract

Bi2Se3 nanosheets with thicknesses of 50−100 nm have been successfully synthesized by a simple microwave heating method using selenium powder, Bi(NO3)3·5H2O, HNO3 aqueous solution, ethylenediamine or ethylene glycol, and an ionic liquid 1-n-butyl-3-methylimidazolium tetrafluoroborate. The effects of experimental parameters on the formation of the products were investigated. The products were characterized by X-ray powder diffraction, scanning electron microscopy, and transmission electron microscopy.

Preparation of Inorganic Materials Using Ionic Liquids

“…The authors proposed that the formation of micelles plays an important role in the templating. [300] ZnS nanoparticles, [301] flowerlike MoS 2 , [302] MoS 2 microspheres, [303,304] MoS 2 with different morphologies, [305] PbS nanocubes, [306] ZnSe hollow microspheres, [307] Bi 2 Se nanosheets, [308] CdSe microstructures, [309] and Bi 2 Te 3 nanostructures [310] with the aid of ionic liquids has also been reported.…”

The Design of Nanoscale Inorganic Materials with Controlled Size and Morphology by Ionic Liquids

“…Lately, by combining the advantages of both room temperature ionic liquids and microwave heating, a new microwave-assisted ionic liquid method has developed for fast controlled synthesis of nanorods and nanowires of Te and ZnO (Jiang & Zhu, 2005). Zhu and coworkers ) synthesized single-crystal tellurium nanowires using microwave heating in n-butylpyridinium tetrafluoroborate ionic liquid in the presence of polymer surfactant of poly (vinylpyrrolidone) (Wang & Zhu, 2005, Jiang et al, 2006, Singh et al, 2008, Liu et al, 2006. Single-crystalline Bi 2 S 3 and Sb 2 S 3 nanorods have been synthesized using the microwaveassisted ionic liquid method by Jiang and Zhu (Jiang & Zhu, 2005 The morphologies of the samples were investigated by transmission electron microscopy (TEM).…”

Synthesis, Characterization, and Catalytic Performance of Sb2Se3 Nanorods

“…Semiconductor selenides find applications as laser materials, optical filters, sensors, and solar cells. Antimony selenide, an important member of these V 2 VI 3 compounds, is a layer-structured semiconductor of orthorhombic crystal structure and exhibits good photovoltaic properties and high thermoelectric power (TEP) which allows possible applications for optical and thermoelectronic cooling devices [2][3][4][5][6][7]. Over the past two decades, many methods have been employed to prepare Sb 2 Se 3 nanotubes, nanoribbons, nanowires, nanosheets, nanorods, nanobelts, nanospheres, and nanoflakes, including thermal decomposition [8,9], complex decomposition approach [10], solvothermal reaction [11,12], microwave irradiation [13], vacuum evaporation [14], and other chemical reaction approaches [15,16].…”