Decahedral and icosahedral twin crystals of silver: Formation and morphology evolution

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	Decahedral and icosahedral twin crystals of silver: Formation and morphology evolution
	Li, CR ; Lu, NP ; Xu, Q ; Mei, J ; Dong, WJ ; Fu, JL ; Cao, ZX
刊名	JOURNAL OF CRYSTAL GROWTH
	2011
卷号	319 期号:1 页码:88
关键词	GOLD NANOCRYSTALS STRUCTURAL-PROPERTIES FIVEFOLD SYMMETRY GROWTH-MECHANISM PARTICLES NANORODS SHAPE NANOSTRUCTURES DISCLINATIONS NANOPARTICLES
ISSN号	0022-0248
通讯作者	Li, CR: Zhejiang Sci Tech Univ, Dept Phys, Hangzhou 310018, Zhejiang, Peoples R China.
中文摘要	Sharply-facetted decahedral and icosahedral crystals of Ag were grown from vapor phase by evaporating Ag(2)O in the evaporation temperature range from 800 to 1000 degrees C. They are found resulting from conformal growth of smaller nuclei in which a compact structure out of tetrahedral units has already established-tiny decahedral and icosahedral crystals can be much smaller than 100 nm in dimension. The intrinsic stress, derived from the misfit angle of the assembled cyclic decahedron or a spherical icosahedron from the five or twenty tetrahedra, plays an important role to the corresponding growth mechanism. Different arrangements of twin boundaries in the decahedral and icosahedral nuclei define their morphology evolution. Uneven alignment of twin boundaries will divert the crystal morphology from regular (truncated) decahedrons and icosahedrons. These results demonstrate an effective route for the study of general mechanisms concerning the growth of twin crystals of noble metals. (C) 2011 Elsevier B.V. All rights reserved.
收录类别	SCI
资助信息	National Natural Science Foundation of China [10874153, 50772100, 10974227, 20701033]; Science Foundation of Zhejiang Sci-Tech University; Innovation Research Project for Graduate Student of Zhejiang Province [YK 2009051]
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/35645]
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	Li, CR,Lu, NP,Xu, Q,et al. Decahedral and icosahedral twin crystals of silver: Formation and morphology evolution[J]. JOURNAL OF CRYSTAL GROWTH,2011,319(1):88.
APA	Li, CR.,Lu, NP.,Xu, Q.,Mei, J.,Dong, WJ.,...&Cao, ZX.(2011).Decahedral and icosahedral twin crystals of silver: Formation and morphology evolution.JOURNAL OF CRYSTAL GROWTH,319(1),88.
MLA	Li, CR,et al."Decahedral and icosahedral twin crystals of silver: Formation and morphology evolution".JOURNAL OF CRYSTAL GROWTH 319.1(2011):88.