Synthesis of porous CuInS₂ crystals

Abstract

CuInS2 crystals were grown from starting materials CuCl2 · 2H2O, InCl3 · 4H2O and thiorea with ethylene glycol solution, that were placed into a flask, heated, and refluxed for 1 hour. The diffraction peaks only from CuInS2 phase appear for all the samples. The morphology of CuInS2 crystal was porous, and the porous crystals exist in two kinds. One kind was flower‐like crystals which complexly lack the flakes, another one was sphere‐like crystals existed with a number of the poles. The sizes of sphere‐like porous crystals were approximately 1.0 μm. The specific surface area of the samples grown at 180 °C and 600 rpm estimated approximately 30 m2/g. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

Synthesis of porous CuInS2 crystals using a stirrer

“…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. In our previous paper [18], we reported on two kinds of the porous CuInS 2 crystals. One kind is flower-like crystals which complexly lack the flakes, another one is sphere-like crystals existed with a number of the poles.…”