High-resolution transmission electron microscopy of structural changes at and near surfaces of ZnTe crystals

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	High-resolution transmission electron microscopy of structural changes at and near surfaces of ZnTe crystals
	Ning, XG; AvalosBorja, M; Ye, HQ
通讯作者	Ning, XG()
	1996
发表期刊	JOURNAL OF APPLIED PHYSICS
ISSN	0021-8979
卷号	79 期号:1 页码:125-128
摘要	Structural changes on and near surfaces of ZnTe crystals were observed by the surface profile imaging method in a high-resolution transmission electron microscope (HRTEM) with 200 kV accelerating voltage. It was found that ZnO particles form under electron irradiation on surfaces originally covered with a thin amorphous layer. For amorphous coverages thicker than about 7 nm, ZnO particles were not observed. Under the ZnO particles, 2X1 and 2x2 superstructures (about 10 nm in size) were often found in the ZnTe matrix. These superstructures can be described as a metastable Zn2Te3 having a structure similar to the ordered Ga2Te3 structure. This change can be accomplished by Considering the diffusion of zinc from the ZnTe matrix to the surface to form the oxide and evaporation of tellurium out of the surface, leaving behind a matrix with an altered stoichiometry. The HRTEM computer-simulated images for the proposed Zn2Te3 superstructure matched very well the experimental images. The 2x1 and 2x2 superstructures corresponded to the HRTEM images of the new Zn2Te3 structure viewed along its [211] and [100] directions, respectively. (C) 1996 American Institute of physics,
收录类别	SCI
语种	英语
WOS研究方向	Physics
WOS类目	Physics, Applied
WOS记录号	WOS:A1996TN21100019
出版者	AMER INST PHYSICS
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/126667
专题	中国科学院金属研究所
通讯作者	Ning, XG
作者单位	CHINESE ACAD SCI, MET RES INST, ATOM IMAGING SOLIDS LAB, SHENYANG 110015, PEOPLES R CHINA
推荐引用方式 GB/T 7714	Ning, XG,AvalosBorja, M,Ye, HQ. High-resolution transmission electron microscopy of structural changes at and near surfaces of ZnTe crystals[J]. JOURNAL OF APPLIED PHYSICS,1996,79(1):125-128.
APA	Ning, XG,AvalosBorja, M,&Ye, HQ.(1996).High-resolution transmission electron microscopy of structural changes at and near surfaces of ZnTe crystals.JOURNAL OF APPLIED PHYSICS,79(1),125-128.
MLA	Ning, XG,et al."High-resolution transmission electron microscopy of structural changes at and near surfaces of ZnTe crystals".JOURNAL OF APPLIED PHYSICS 79.1(1996):125-128.