Polymeric stabilization of hybrid nanocomposites: a comparison between in situ and ex situ-grown CuInS2 in poly(3-hexylthiophene) polymer

Room temperature synthesis of CuInS2 nanocrystals

“…ref. [27][28][29][30]. Whereas the thermal pathway follows the Chugaev elimination mechanism, the presented room temperature synthesis proceeds via a direct reaction of the amine with the metal xanthate as identied by NMR investigations.…”

“…28 Alternatively, a mixture of Cu and In xanthates (named as CIX) were decomposed at a temperature of 110 C using o-dichlorobenzene as solvent and oleylamine/trioctylphosphine as ligands 29 or, in comparison to that, poly(3-hexylthiophene) as polymeric ligand. 30 In this latter paper, the conversion to CuInS 2 takes place in the presence of the polymer in solution. Alternatively, the precursors can be directly converted to metal suldes in a thin lm of a conjugated polymer, as we showed using dimethylpentyl xanthates of copper and indium for the fabrication of CuInS 2 -polymer hybrid solar cells.…”

Structural, optical and charge generation properties of chalcostibite and tetrahedrite copper antimony sulfide thin films prepared from metal xanthates

“…Metal xanthates are versatile metal-organic precursors for the formation of metal suldes due to their solubility in various solvents 18 and conversion to metal suldes at relatively low temperatures (140-200 C) 19 and even at room temperature using UV-light treatment. 20 A variety of metal suldes have been synthesized employing this method including a range of binary metal suldes, [21][22][23][24][25][26][27][28][29][30][31][32][33][34] ternary (CuInS 2 ) [35][36][37] and quaternary metal suldes (CZTS). 38 Moreover, this solution based route employing metal xanthates was initially used to prepare nanocomposites of metal sulde nanoparticles in organic/polymeric matrices for the application in bulk heterojunction hybrid solar cells, 21,39,40 but this method is also very well suited to prepare thin metal sulde lms on mesoporous metal oxide scaffolds for application in semiconductor sensitized solar cells.…”

Hot injection synthesis of CuInS2 nanocrystals using metal xanthates and their application in hybrid solar cells

“…In this regard, also metal xanthates have been proven to be very suitable. [40][41][42][43][44][45] Examples for a hot injection synthesis of CuInS 2 nanoparticles comprise the syntheses from the corresponding copper and indium ethyl xanthates using glycol 38 or trioctylamine as solvent and oleylamine/trioctylphosphine as ligands. 39 Alternatively, nanocrystals have been isolated via the decomposition of copper and indium xanthates in a mixture of o-dichlorobenzene as solvent and oleylamine/ trioctylphosphine 40 or poly(3-hexylthiophene) (P3HT) as polymeric ligand.…”