本征缺陷决定了In2O3纳米晶体中Eu(2+)和Eu(3+)的相依赖光致发光行为。
Native defects determine phase-dependent photoluminescence behavior of Eu(2+) and Eu(3+) in In2O3 nanocrystals.
作者信息
Ghodsi Vahid, Layek Arunasish, Hegde Manu, Yildirim Baran, Radovanovic Pavle V
机构信息
Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.
出版信息
Chem Commun (Camb). 2016 Mar 21;52(23):4353-6. doi: 10.1039/c6cc01122e.
We demonstrate the coexistence of Eu(2+) and Eu(3+) in corundum and bixbyite-type colloidal In2O3 nanocrystals. The emission properties of dopants in both oxidation states are determined by their interaction with native defects, and are dramatically different in the two nanocrystal phases. This difference arises from the smaller nanocrystal size and higher defect density in metastable corundum-type nanocrystals.
我们证明了在刚玉型和方铁锰矿型胶体In2O3纳米晶体中Eu(2+)和Eu(3+)的共存。两种氧化态掺杂剂的发射特性由它们与本征缺陷的相互作用决定，并且在两种纳米晶相中显著不同。这种差异源于亚稳刚玉型纳米晶体中较小的纳米晶体尺寸和较高的缺陷密度。
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