The phase transformation of CuInS(2) from chalcopyrite to wurtzite

In the present work, CuInS(2) nanoparticles have been successfully synthesized by water-bath method with deionized water as solvent and thioglycolic acid as complexing agent at 80°C. The phase transition of CuInS(2) from chalcopyrite to wurtzite was realized by adjusting the pH value of reaction solution. The emergence of Cu(2)S in the condition of higher pH value of reaction solution led to the formation of wurtzite CuInS(2). This facile method that controls the phase structure by adjusting the solution pH value could open a new way to synthesize other I-III-VI(2) ternary semiconductor compounds. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1186/s11671-015-0800-z) contains supplementary material, which is available to authorized users.