标题：Strong photoluminescence of the porous silicon with HfO2-filled microcavities
作者：Jiang, Ran ;Wu, Zhengran ;Du, Xianghao ;Han, Zuyin ;Sun, Weideng
作者机构：[Jiang, Ran ;Wu, Zhengran ;Du, Xianghao ;Han, Zuyin ;Sun, Weideng ] School of Physics, Shandong University, Jinan; 250100, China
来源：Applied Physics Letters
摘要：Greatly enhanced blue emission was observed at room temperature in the single-crystal silicon with HfO2filled into its microcavities. The broad blue band light was emitted from both the HfO2dielectric and the porous Si. The ferroelectricity of HfO2enhances the blue emission from Si by its filling into the microcaivities. At the same time, HfO2contributes to the light emission for the transitions of the defect levels for oxygen vacancy. The observation of greatly enhanced blue light emission of the porous Si filled with HfO2dielectric is remarkable as both HfO2and Si are highly compatible with Si-based electronic industry.
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