Piveteau, Laura published the artcileColloidal-ALD-Grown Core/Shell CdSe/CdS Nanoplatelets as Seen by DNP Enhanced PASS-PIETA NMR Spectroscopy, Name: N-Methylformamide, the main research area is colloidal ALD core shell cadmium selenide sulfide nanoplatelet NMR; PASS−PIETA; c-ALD; dynamic nuclear polarization; nanocrystals; nanoplatelets; solid-state NMR.
Ligand exchange and CdS shell growth onto colloidal CdSe nanoplatelets (NPLs) using colloidal at. layer deposition (c-ALD) were investigated by solid-state NMR experiments, in particular dynamic nuclear polarization (DNP) enhanced phase adjusted spinning sidebands – phase incremented echo-train acquisition (PASS-PIETA). The improved sensitivity and resolution of DNP enhanced PASS-PIETA permits identification and study of the core, shell and surface species of CdSe and CdSe/CdS core/shell NPLs heterostructures at all stages of c-ALD. The cadmium chem. shielding was found to be proportionally dependent on the number and nature of coordinating chalcogen-based ligands. DFT calculations permitted to sep. the 111/113Cd chem. shielding into its different components, revealing that the varying strength of paramagnetic and spin-orbit shielding contributions are responsible for the chem. shielding trend of cadmium chalcogenides. Overall, this study points to roughening and increased chem. disorder at the surface during the shell growth process, which is not readily captured by the conventional characterization tools such as electron microscopy.
Nano Letters published new progress about Atomic layer deposition. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Name: N-Methylformamide.
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics