Large-scale growth of porous CuInS 2 microspheres

Crystalline, Porous Microspheres Made from Amino Acids by Using Polymer‐Induced Liquid Precursor Phases

“…The method presented herein is an addition to the available approaches for the preparation of porous microspheres, such as solvothermal methods, [16] sol-gel methods, [17] preparation in commercially available microspherical silica gels, [18] the use of microemulsion droplets as liquid templates to prepare hollow inorganic microspheres, [16,[19][20][21] and dynamic emulsification of oil droplets containing metal oxide precursors which through a reaction at the oil-water interface give porous star-shaped shells. [22] Amino acids are practically insoluble in organic media, so their aqueous solutions undergo fast crystallization upon addition of a water-miscible organic solvent.…”

Synthesis of porous CuInS2 crystals

“…No sphere-like crystal is observed by G. Shen et al [16]. On the other hand, the sphere-like crystals are similar to the crystals, prepared using Teflon-lined stainless steel autoclave [17]. Figure 3 shows SEM photograph of the samples grown at 140 °C and 600 rpm.…”

“…There are also various techniques for the preparation of CuInS 2 thin films, such as evaporation [6], chemical vapor deposition (CVD) [7], sputtering [8], molecular beam epitaxy (MBE) [9] and spray pyrolysis [10]. Recently, several morphologies of CuInS 2 have been prepared, such as nanorods [11,12], nanotubes [13], nanoparticles [14,15], foamlike [16] and sphere-like CuInS 2 nanocrystallites [17]. In these CuInS 2 nanocrystals, preparation conditions of the foam-like porous CuInS 2 nanocrystals grown by a rapid polyol method [16] are not investigated enough.…”

The Synthesis of CuInS2Nanoparticles by a Simple Sonochemical Method

“…2 Various different morphologies of CuInS2 of which band gap is about 1.5 eV have been prepared such as thin films, 3 nanoparticles, 4-5 nanorods, 6-7 nanotube, 8 nanowires, 9 foam-like CuInS2 nonocrystallites, 10 and porous microspheres. 11 In fabricating the chalcogenide films, there were several techniques such as chemical vapor deposition, 3 sputtering, 7,12 spray pyrolysis, 13-14 molecular beam deposition, 15 and electrodeposition. [16][17] Recently, we reported that the sonochemistry under multibubble sonoluminascence conditions is a powerful method to synthesize various important nanomaterials such as CdS-coated TiO2, 18 Li4Ti5O12, 19 ZnO, 20 ZnS-coated TiO2, 21 PbS-coated TiO2, 22 and Ni-coated Al2O3 23 nanoparticles with a core-shell structure under relatively very mild conditions.…”