title: Assembly of CuIn(1-x)Ga(x)S2 nanorods into highly ordered 2D and 3D superstructures.
abstract: Here, we report self- and directed assembly of CuIn(1-x)Ga(x)S(2) (CIGS) nanorods into highly ordered 2D and 3D superstructures. The assembly protocol is dictated by the ligand environment and is hence chemically tunable. Thiol capped nanorods spontaneously assemble into 3D aligned nanorod clusters over a period of hours with end to end and side to side order. These clusters can be disassembled by ligand exchange with an amine and subsequently reassembled either at a substrate interface or as free floating 2D sheets by directed assembly protocols. This dimensional control of CIGS nanorod assembly, extending over device scale areas with high degrees of order, is highly attractive for applications utilizing these important quaternary photoabsorbers.
authors: Materials and Surface Science Institute and Department of Chemical and Environmental Sciences,University of Limerick, Limerick, Ireland.
authors: Ajay
authors: A
authors: Singh
authors: Claudia
authors: C
authors: Coughlan
authors: Fathima
authors: F
authors: Laffir
authors: Kevin M
authors: KM
authors: Ryan
mesh_terms: D003300:Copper / Q000737:chemistry*; D003460:Crystallization / Q000379:methods; D005708:Gallium / Q000737:chemistry*; D007204:Indium / Q000737:chemistry*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure*; D008968:Molecular Conformation; D010316:Particle Size; D012643:Selenium / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D046911:Macromolecular Substances; C101793:copper indium diselenide; D007204:Indium; D003300:Copper; D005708:Gallium; D012643:Selenium