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This review presents recent research advances in measuring native point defects in ZnO nanostructures, establishing how these defects a ect nanoscale electronic properties, and developing new techniques to manipulate these defects to control nano- and micro- wire electronic properties.From spatially-resolved cathodoluminescence spectroscopy, we now know that electrically-active native point defects are present inside, as well as at the surfaces of, ZnO and other semiconductor nanostructures. These defects within nanowires and at their metal interfaces can dominate electrical contact properties, yet they are sensitive to manipulation by chemical interactions, energy beams, as well as applied electrical fields. Non-uniform defect distributions are common among semiconductors, and their e ects are magnified in semiconductor nanostructures so that their electronic e ects are significant. The ability to measure native point defects directly on a nanoscale and manipulate their spatial distributions by multiple techniques presents exciting possibilities for future ZnO nanoscale electronics.
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Sulvanites: The Promise at the Nanoscale
The class of ternary copper chalcogenides Cu3MX4 (M = V, Nb, Ta; X = S, Se, Te), also known as the sulvanite family, has attracted attention in the past decade as featuring promising materials for optoelectronic devices, including solar photovoltaics. Experimental and theoretical studies of these semiconductors have provided much insight into their properties, both in bulk and at the nanoscale. The recent realization of sulvanites at the nanoscale opens new avenues for the compounds toward printable electronics. This review is aimed at the consideration of synthesis methods, relevant properties and the recent developments of the most important sulvanites.
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- Award ID(s):
- 1924412
- PAR ID:
- 10274327
- Date Published:
- Journal Name:
- Nanomaterials
- Volume:
- 11
- Issue:
- 3
- ISSN:
- 2079-4991
- Page Range / eLocation ID:
- 823
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
-
Accepted Manuscript1.0
- Journal Article:
- https://doi.org/10.3390/nano11030823
