Soft chemistry routes to GeS 2 nanoparticles

Abstract Spherical GeS 2 particles are prepared by a low temperature liquid route with TEOG as germanium precursor and either H 2 S or thioacetamide (TAA) as sulfur precursors. The size and agglomeration of the particles change depending upon the temperature and nature of the solvent. Most synthesis lead to preparing amorphous GeS 2 . When the reaction kinetic is slowed down by using TAA at 25 °C, the obtained GeS 2 product presents a larger order in the range of few A as proven by Raman spectroscopy, even though it is still an amorphous compound as suggested by X-Ray diffraction and TEM experiments.