Light Emission from Nanocrystalline Si Inverse Opals and Controlled Passivation by Atomic Layer Deposited Al2O3

被引：14
作者：
Gallego-Gomez, Francisco [1 ,2 ]
Ibisate, Marta [1 ,2 ]
Golmayo, Dolores [1 ,2 ]
Palomares, F. Javier [1 ,2 ]
Herrera, Miriam [3 ]
Hernandez, Jesus [3 ]
Molina, Sergio I. [3 ]
Blanco, Alvaro [1 ,2 ]
Lopez, Cefe [1 ,2 ]
机构：
[1] CSIC U Vigo, Consejo Super Invest Cient, Inst Ciencia Mat Madrid, Madrid 28049, Spain
[2] CSIC U Vigo, Consejo Super Invest Cient, Unidad Asociada, Madrid 28049, Spain
[3] Univ Cadiz, Dept Ciencia Mat & Ingn Met & Quim Inorgan, Fac Ciencias, Cadiz 11510, Spain
来源：
ADVANCED MATERIALS | 2011年 / 23卷 / 44期
关键词：
SILICON NANOCRYSTALS; POROUS SILICON; PHOTOLUMINESCENCE; LUMINESCENCE; FILMS; NANOPARTICLES; ASSEMBLIES; REDUCTION;
D O I：
10.1002/adma.201101797
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
3D-nanostructured ensembles of silicon nanocrystals forming inverse opals, directly prepared by magnesioreduction, exhibited intense photoluminescence in a broadband range (visible and NIR). Light emission, which strongly diminished under photoexcitation, was preserved by engineering the nanocrystals interface with atomic layer deposition of alumina. The high accessibility of the nanocrystals throughout the self-supported structure was a key factor for efficient photoluminescence stabilization. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：5219 / 5223
页数：5
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