Visualizing a core-shell structure of heavily doped silicon quantum dots by electron microscopy using an atomically thin support film

We successfully visualize a core-shell structure of a heavily B and P codoped Si quantum dot (QD) by transmission electron microscopy using an ultra-thin graphene oxide support film. The enhanced contrast reveals that a codoped Si QD has a highly crystalline Si core and an amorphous shell composed o...

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Bibliographic Details
Published in:Nanoscale 2018-01, Vol.10 (16), p.7357-7362
Main Authors: Sugimoto, Hiroshi, Yamamura, Masataka, Sakiyama, Makoto, Fujii, Minoru
Format: Article
Language:English
Subjects:
Core-shell structure
Microscopy
Quantum dots
Shells
Silicon
Transmission electron microscopy
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Summary:We successfully visualize a core-shell structure of a heavily B and P codoped Si quantum dot (QD) by transmission electron microscopy using an ultra-thin graphene oxide support film. The enhanced contrast reveals that a codoped Si QD has a highly crystalline Si core and an amorphous shell composed of Si, B and P.
ISSN:2040-3364
2040-3372
DOI:10.1039/c7nr09474d