Shape-Controlled Synthesis of Ternary Chalcogenide ZnIn₂S₄ and CuIn(S,Se)₂ Nano-/Microstructures via Facile Solution Route

Abstract

We demonstrated in this paper the shape-controlled synthesis of ZnIn2S4, CuInS2, and CuInSe2 nano- and microstructures through a facile solution-based route. One-dimensional ZnIn2S4 nanotubes and nanoribbons were synthesized by a solvothermal method with pyridine as the solvent, while ZnIn2S4 solid or hollow microspheres were hydrothermally prepared in the presence of a surfactant such as cetyltrimethylammonium bromide (CTAB) or poly(ethylene glycol) (PEG). The mechanisms related to the phase formation and morphology control of ZnIn2S4 are proposed and discussed. The UV-vis absorption spectra show that the as-prepared nano- and micromaterials have strong absorption in a wide range from UV to visible light and that their band gaps are somewhat relevant to the size and morphology. The photoluminescence measurements of the ZnIn2S4 microspheres at room temperature reveal intense excitation at approximately 575 nm and red emission at approximately 784 nm. Furthermore, CuInS2 and CuInSe2 with different morphologies such as spheres, platelets, rods, and fishbone-like shapes were also obtained by similar hydrothermal and solvothermal synthesis.

Hollow Micro‐/Nanostructures: Synthesis and Applications

“…Dai et al have recently reported synthesis of CdS hollow nanospheres with size about 25 nm from Cd(NO 3 ) 2 and Na 2 S in an aqueous solution of polyglycol, [231] which is speculated to result from the spherical aggregates induced by the interaction of polyglycol chains with metal ions. [232] Recently, hollow silica spheres with tunable sizes and wall thickness have been synthesized using colloidal aggregates of PAA as templates in the Stö ber method. [233] Formation of hollow structures from self-assembly of preformed nanoparticles is scientifically challenging.…”

Preparation and characterization of ZnIn2S4 thin films deposited by spray pyrolysis for hydrogen production

“…Recently Gou et al synthesized ZnIn 2 S 4 nano-/microstructures by solventhermal method [22]. This illuminated that ZnIn 2 S 4 can be synthesized via a facile solution route.…”

ZnS micro-spheres and flowers: Chemically controlled synthesis and template use in fabricating MS(shell)/ZnS(core) and MS (M = Pb, Cu) hollow microspheres

“…The morphology of inorganic solid materials is an important factor to their properties and it is thus that the preparation of inorganic compounds with special morphologies has attracted a great deal of interest [5][6][7]. Up to now, various physical and chemical methods have been employed to prepare ZnS with the morphologies of porous nanoparticles [8,9], hollow nanospheres [10], and one-dimensional nanostructures [11,12].…”