Solvothermal Elemental Direct Reaction to CdE (E = S, Se, Te) Semiconductor Nanorod

Abstract

The solvothermal reaction of sulfur, selenium, or tellurium with cadmium metal powder in different organic solvents in the temperature range 120-200°C was investigated systematically to prepare cadmium chalcogenides, CdE (E ) S, Se, Te). The results showed that the character of the products, such as crystal size, shape, and structure, were strongly influenced by the solvent and temperature during the solvothermal process. One-dimensional nanorods of CdE, with 10-40 nm diameters and several micrometers in length, were obtained by choosing coordinating solvents such as ethylenediamine and 1,6-diaminohexane as the reaction solvent. A solvent coordination molecular template mechanism for the growth of the nanorods was proposed. The CdEs thus produced were analyzed by X-ray powder diffraction, transmission electron microscopy, high-resolution electron microscopy, X-ray photoelectron spectroscopy, and elemental analysis. Ultraviolet-visible absorption, photoluminescence, and Raman spectra were used to characterize the resultant nanometer particles.

Self-Assembly-Induced Formation of High-Density Silicon Oxide Memristor Nanostructures on Graphene and Metal Electrodes

“…33,34 A lot of new synthetic methods for generating 1D nanostructures from various metal oxides have been demonstrated; notable examples include those based on the vapor-solid (VS), [4][5][6] vapor-liquid-solid (VLS), 7-9 solution-solid, 10 and solvothermal routes. 11,12 However, critical issues associated with these methods include insufficient yields and difficult manufacturability and size controllability.…”

Preparation of nanodimensional CdS by chemical dipping technique and their characterization

“…The characteristic absorption of light for CdS is in the visible range. There are various methods to prepare CdS nanoparticles 1,[4][5][6][7] . Some of the above-mentioned methods have some drawbacks.…”

pH-Controlled Hydrothermal Synthesis of Submicrometer-Sized CdS Spheres with Uniform Size Distribution

“…[1][2][3] In particular, many researchers have carried out in-depth studies on CdS because it has numerous applications; for example, CdS can be used as a photocatalyst 4 as well as in solar cells 5 and light-emitting diodes. 6 CdS has been synthesized by solid-state methods, 7,8 solvothermal methods, 9,10 precipitation, 11 microwave-assisted solvothermal method, 12 and liquid-crystal templating, 13 and calcinations of Cd-thiolates. 14 Among these, solvothermal methods involving the use of Cd(II) ions as the metal source, various sulfur-containing ligands as sulfur sources, and shape-directing agents have been studied extensively.…”