Strong and stable blue photoluminescence: The peapodlike SiOx@Al2O3 heterostructure

Da-Yan Chen; Ming-Wang Shao; Liang Cheng; Xiu-Hua Wang; Dorothy Duo-Duo Ma
January 2009
Applied Physics Letters;1/26/2009, Vol. 94 Issue 4, pN.PAG
Academic Journal
Peapodlike heterostructure composed of SiOx particles orderly embedded in the high-crystalline α-Al2O3 nanoribbons was fabricated via a two-step thermal reaction route. The room temperature photoluminescence spectrum of the products showed a strong and stable blue emission centered at 467 nm under excitation at 320 nm, which was attributed to the especial heterostructure. This technique also provided a general and convenient approach for preparing even more complex heterostructures and would be useful in improving the properties of materials.


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