期刊
ACS NANO
卷 8, 期 9, 页码 9154-9163出版社
AMER CHEMICAL SOC
DOI: 10.1021/nn5027593
关键词
ZnO; nanoparticles; surface plasmon resonance; doping; colloidal synthesis; optical properties
类别
资金
- Flexible Electronics Theme of the Future Manufacturing Flagship as part of an Office of the Chief Executive Postdoctoral Fellowship
- Australian Research Council [DP110105341]
- DECRA
Plasmonic metal oxide nanocrystals bridge the optoelectronic gap between semiconductors and metals. In this study, we report a facile, non-injection synthesis of ZnO nanocrystals doped with Al, Ga, or In. The reaction readily permits dopant/zinc atomic ratios of over 15%, is amenable to high precursor concentrations (0.2 M and greater), and provides high reaction yields (>90%). The resulting colloidal dispersions exhibit high transparency in the visible spectrum and a wavelength-tunable infrared absorption, which arises from a dopant-induced surface plasmon resonance. Through a detailed investigation of reaction parameters, the reaction mechanism is fully characterized and correlated to the optical properties of the synthesized nanocrystals. The distinctive optical features of these doped nanocrystals are shown to be readily harnessed within thin films that are suitable for optoelectronic applications.
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