Proceedings of Online nanoGe Fall Meeting 20 (OnlineNFM20)
Publication date: 4th October 2020
The high affinity for the halides ligands with the <100> facets of the zinc blende nanoplatelets (NPLs) lead to a ligand exchange from carboxylate to halides which then partially dissolved the cadmium chalcogenides NPLs through the edges. The released monomers then recrystallized on the large top and bottom facets leading to a growth of NPLs in the thickness. CdSe NPLs with thicknesses from 3 to 9 MLs are synthesized. A direct growth is also achieved when a chalcogenide precursor is jointly introduced with a metal halide. Finally when an incomplete layer is grown, homostructures with a type I band alignement are obtained thus offering a new degree of liberty for the synthesis of structured NPLs.
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