Publication Type : Journal Article
Publisher : ChemSusChem
Source : ChemSusChem Volume 7 Issue 12 Pages 3290-3294, 2014
Url : https://chemistry-europe.onlinelibrary.wiley.com/doi/abs/10.1002/cssc.201402333
Campus : Coimbatore
School : School of Physical Sciences
Center : Center for Industrial Research and Innovation (ACIRI)
Year : 2014
Abstract : We successfully utilize the concept of coalescence and room-temperature sintering to prepare morphologically different nanoparticles. n-Type chalcogenide (CuIn5S8) nanocrystals are synthesized at room temperature by simple mixing of oppositely charged precursor nanoparticles. The coalescence of polycation-coated CuS nanoparticles and negatively charged In2S3 nanoplates is driven by close contact of the particles due to electrostatic interactions. Analysis by X-ray diffraction, transmission electron microscopy (TEM) imaging, and Raman spectroscopy confirms the formation of single-phase CuIn5S8 without traceable secondary phase. In a photovoltaic device, the use of the coalesced particles yields a power conversion efficiency of 1.8 %.
Cite this Research Publication : Hui Min Lim, Jia Yi Tan, Sudip K Batabyal, Shlomo Magdassi, Subodh G Mhaisalkar, Lydia H Wong, "Photoactive Nanocrystals by Low‐Temperature Welding of Copper Sulfide Nanoparticles and Indium Sulfide Nanosheets", ChemSusChem Volume 7 Issue 12 Pages 3290-3294, 2014