Synthesis, characterization, photoluminescence and ferroelectric properties of PbTiO3 nanotube arrays

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	Synthesis, characterization, photoluminescence and ferroelectric properties of PbTiO3 nanotube arrays
	Liu, LF ; Ning, TY ; Ren, Y ; Sun, ZH ; Wang, FF ; Zhou, WY ; Xie, SS ; Song, L ; Luo, SD ; Liu, D ; Shen, J ; Ma, W ; Zhou, Y
刊名	MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
	2008
卷号	149 期号:1 页码:41
ISSN号	0921-5107
中文摘要	Structural and optical properties of Al0.69Ga0.31N films are greatly improved by combining special-designed AlN buffer and AlN/ AlGaN superlattices (SLs) grown by low-pressure metalorganic chemical vapor deposition (LP-MOCVD). The optimized AlN buffer grown under lower V/III ratio provides a template with low screw threading dislocations (TDs), and the partially relaxed SLs play a role of dislocation filter for the edge ones. Thus, the combinative use of both buffers effectively reduces both screw and edge TDs in Al-rich AlGaN, which has been evidenced by cross-sectional transmission electron microscopy (TEM). It is found both (0 0 0 2) and (10 (1) over bar5) full-width at half-maximum (FWHMs) of Al0.69Ga0.31N epilayer are decreased to 173 and 703 aresec, respectively. Meanwhile, enhanced near band edge (NBE), photoluminescence (PL) and suppressed deep level emission measured at 30 K further confirm the effects of the combinative buffers on improving optical quality of Al0.69Ga0.31N films. (C) 2008 Elsevier B.V. All rights reserved.
收录类别	SCI
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/54474]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Liu, LF,Ning, TY,Ren, Y,et al. Synthesis, characterization, photoluminescence and ferroelectric properties of PbTiO3 nanotube arrays[J]. MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS,2008,149(1):41.
APA	Liu, LF.,Ning, TY.,Ren, Y.,Sun, ZH.,Wang, FF.,...&Zhou, Y.(2008).Synthesis, characterization, photoluminescence and ferroelectric properties of PbTiO3 nanotube arrays.MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS,149(1),41.
MLA	Liu, LF,et al."Synthesis, characterization, photoluminescence and ferroelectric properties of PbTiO3 nanotube arrays".MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS 149.1(2008):41.