Ultraviolet and Deep-Ultraviolet Emissions from c-Mgx Zn1-x O/MgO Ultrathin Multilayer Heterostructures
YU Ping1 , QIU Dong-Jiang1,2 , WU Hui-Zhen1
1 Department of Physics, Zhejiang University, Hangzhou 310027
2 State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027
Ultraviolet and Deep-Ultraviolet Emissions from c-Mgx Zn1-x O/MgO Ultrathin Multilayer Heterostructures
YU Ping1 ;QIU Dong-Jiang1,2 ;WU Hui-Zhen1
1 Department of Physics, Zhejiang University, Hangzhou 310027
2 State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027
关键词 ：
78.66.Hf ,
78.67.-n ,
79.60.Jv ,
81.07.-b
Abstract ： Cubic phase Mgx Zn1-x O/MgO multilayer heterostructures (c-Mgx Zn1-x O/MgO MHs) are grown on Si(100) and quartz substrates by reactive electron beam evaporation at low temperature (250°C). Cross-sectional morphology observations by field-emission scanning electron microscopy show the legible interfaces of c-Mgx Zn1-x O/MgO MHs. X-ray diffraction demonstrates that c-Mgx Zn1-x O/MgO MHs are of highly (100)-oriented. Optical transmission investigations of c-Mgx Zn1-x O/MgO MHs on quartz substrates reveal the coexistence of the two phases, c-Mgx Zn1-x O and MgO. Photoluminescence examination indicates the emergence of deep-ultraviolet emission centred at about 290nm along with the blue shift of the ultraviolet emission from 405nm to 396nm when the nominal thickness of c-Mgx Zn1-x O well layers of MHs is diminished to 3nm, which is probably originated from quantum confinement effect.
Key words ：
78.66.Hf
78.67.-n
79.60.Jv
81.07.-b
出版日期: 2005-10-01
:
78.66.Hf
(II-VI semiconductors)
78.67.-n
(Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures)
79.60.Jv
(Interfaces; heterostructures; nanostructures)
81.07.-b
(Nanoscale materials and structures: fabrication and characterization)
引用本文:
YU Ping;QIU Dong-Jiang;WU Hui-Zhen. Ultraviolet and Deep-Ultraviolet Emissions from c-Mgx Zn1-x O/MgO Ultrathin Multilayer Heterostructures[J]. 中国物理快报, 2005, 22(10): 2688-2691.
x Zn1-x O/MgO Ultrathin Multilayer Heterostructures. Chin. Phys. Lett., 2005, 22(10): 2688-2691.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2005/V22/I10/2688
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