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Cation Exchange Induced Transformation of InP Magic-Sized Clusters.
- Source :
-
Chemistry of Materials . Sep2017, Vol. 29 Issue 18, p7984-7992. 9p. - Publication Year :
- 2017
-
Abstract
- Magic-sized clusters (MSCs) can provide valuable insight into the atomically precise progression of semiconductor nanocrystal transformations. We report the conversion of an InP MSC to a Cd3P2 MSC through a cation exchange mechanism and attempt to shed light on the evolution of the physical and electronic structure of the clusters during the transformation. Utilizing a combination of spectroscopic (NMR/UV-vis) and structural characterization (ICP-OES/MS/PXRD/XPS/PDF) tools, we demonstrate retention of the original InP MSC crystal lattice as Z-type ligand exchange initially occurs. Further cation exchange induces lattice relaxation and a significant structural rearrangement. These observations contrast with reports of cation exchange in InP quantum dots, indicating unique reactivity of the InP MSC. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 08974756
- Volume :
- 29
- Issue :
- 18
- Database :
- Academic Search Index
- Journal :
- Chemistry of Materials
- Publication Type :
- Academic Journal
- Accession number :
- 126023154
- Full Text :
- https://doi.org/10.1021/acs.chemmater.7b03075