期刊
OPTICS EXPRESS
卷 29, 期 1, 页码 37-47出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.412776
关键词
-
类别
资金
- National Natural Science Foundation of China [61674085, 61705114]
- Fundamental Research Funds for the Central Universities [63191409]
Silicon-based Yb-doped Y3Al5O12 garnet nanofilms were fabricated using atomic layer deposition, exhibiting a polycrystalline structure after annealing at 1150 degrees C. Yb3+ luminescence was identified at 1030 nm and 970 nm under electrical injection, with an external quantum efficiency of 0.65% and a fluorescence lifetime of 80-200 µs. The manipulation of multi-oxide nanofilms with designed composition and crystallinity revealed the potential for developing Si-based optoelectronic devices from crystalline garnet films.
Silicon-based Yb-doped Y3Al5O12 garnet nanofilms are fabricated by atomic layer deposition, which are polycrystalline after annealing at 1150 degrees C. The sub-nanometer compositional regulation and the Yb2O3 cladding layers, which also work as the luminescent dopants, are critical for the crystallization. Characteristic Yb3+ luminescence at 1030 nm and 970 nm is identified under electrical injection, exhibiting the external quantum efficiency of 0.65% and the fluorescence lifetime of 80-200 mu s. The doped Yb3+ are impact-excited by hot electrons stemming from Fowler-Nordheim tunneling mechanism within the Y3Al5O12 matrix, with the excitation cross section of 0.7x10(-15) to 6.4x10(-15) cm(2). This work certifies the manipulation of multi-oxide nanofilms with designed composition and crystallinity, revealing the possibility of developing Si-based optoelectronic devices from crystalline garnet films. (c) 2020 Optical Society of America under the terms of the OSA Open Access Publishing
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据