Relationships between Compositional Heterogeneity and Electronic Spectra of (Ga1–xZnx)(N1–xOx) Nanocrystals Revealed by Valence Electron Energy Loss Spectroscopy
Abstract:Many ternary and quaternary semiconductors have been
made in nanocrystalline
forms for a variety of applications, but we have little understanding
of how well their ensemble properties reflect the properties of individual
nanocrystals. We examine electronic structure heterogeneities in nanocrystals
of (Ga1–x
Zn
x
)(N1–x
O
x
), a semiconductor that splits water under visible illumination.
We use valence electron energy loss spectroscopy (VEELS) in a scanning
transmission electron microscope to map out electroni… Show more
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