Jiangtong Su
(, ), Peixian Li
(, ), Zhe Liu
(, ), Zifeng Liu
(, ), Xiaoqi Hou
(, ), Junli Duan
(, ), Ning Dai
(, ), Yang Li
(, )
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引用次数: 0
Abstract
Synthetic control of metal oxide nanocrystals with precise size and morphology is of great importance for promising optoelectronic applications due to their unique size- and shape-dependent optical/optoelectronic properties. Nevertheless, the understanding of the mechanism for size and morphology control of metal oxide nanocrystals are less studied. Here, we demonstrate that acetic acid, the byproduct of the initial chemical reaction of precursors, plays a dominate role in determining the morphology of indium oxide (In2O3) nanocrystals by influencing the nucleation of the nanocrystals formation. Sufficient acetic acid would induce anisotropic growth, leading to the generation of nanoflowers, while limited existence of acetic acid results in sphere-shaped nanocrystals. Furthermore, the effects of geometries of In2O3 nanocrystals on their plasmonic properties are studied. The resulting plasmonic In2O3 nanocrystals show size-tunable plasmon resonance peaks in the near-infrared to mid-infrared regime and outstanding air/thermal stability. Our work shall give an in-depth understanding of the mechanism for geometry control of nanocrystals and offer more opportunities in potential optoelectronic and photothermal applications based on plasmonic metal oxide nanocrystals.
期刊介绍:
Science China Materials (SCM) is a globally peer-reviewed journal that covers all facets of materials science. It is supervised by the Chinese Academy of Sciences and co-sponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China. The journal is jointly published monthly in both printed and electronic forms by Science China Press and Springer. The aim of SCM is to encourage communication of high-quality, innovative research results at the cutting-edge interface of materials science with chemistry, physics, biology, and engineering. It focuses on breakthroughs from around the world and aims to become a world-leading academic journal for materials science.