Date
2019
Abstract
CuZnSe2 (CZSe) is an important ternary semiconductor comprised of earth-abundant elements with a suitable bandgap for visible light absorption and structural/stoichiometric versatility that make it a promising candidate for photovoltaic applications. Here we report the controlled synthesis of the compound copper chalcogenide in nanocrystal form using a colloidal hot injection approach. Furthermore, we demonstrate control over the crystal phase to occur as either wurtzite (WZ) or zinc blende (ZB) as a function of the presence and absence of phosphine-based ligands. A major emission peak was observed at â ¼1.7 eV using low-temperature photoluminescence (PL), ranging from 30 to 200 K. Additionally, we demonstrate the ability to extend this synthetic protocol to form a polytype structure comprised of a ZB core with a WZ shell.
Supervisor
Description
peer-reviewed
Publisher
American Chemical Society
Citation
Chemistry of Materials;31 (24), pp. 10085-10093
Collections
Bernal Institute
Show all metadata
Files
Thumbnail Image
Ren_2019_Synthesis.pdf
Adobe PDF, 1.21 MB
Keywords
terary semiconductor, crystal phases
ULRR Identifiers
https://hdl.handle.net/10344/8447
 https://doi.org/10.34961/4843
Funding code
Funding Information
Science Foundation Ireland (SFI), Irish Research Council (IRC), National Natural Science Foundation of China
Sustainable Development Goals
External Link
License
Embedded videos