title: Chemical welding of binary nanoparticles: room temperature sintering of CuSe and In2S3 nanoparticles for solution-processed CuInS(x)Se(1-x) solar cells.
abstract: Chemical welding of oppositely charged dissimilar metal chalcogenide nanomaterials is reported to produce a quaternary metal chalcogenide. CuSe and In2S3 nanoparticles were synthesized with opposite surface charges by stabilizing with polyacrylic acid and polydiallyldimethylammonium chloride. Upon mixing these nanoparticles at room temperature, the electrostatic attraction induced coalescence of these nanoparticles and led to the formation of CuInSxSe1-x nanoparticles.
authors.affiliation: Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, Research Techno Plaza, 637553, Singapore.
authors.forename: Hui
authors.initials: H
authors.lastname: Min Lim
authors.forename: Sudip K
authors.initials: SK
authors.lastname: Batabyal
authors.forename: Stevin S
authors.initials: SS
authors.lastname: Pramana
authors.forename: L H
authors.initials: LH
authors.lastname: Wong
authors.forename: Shlomo
authors.initials: S
authors.lastname: Magdassi
authors.forename: S G
authors.initials: SG
authors.lastname: Mhaisalkar