Local defect-induced red-shift of cathodoluminescence in individual ZnS nanobelts

IMR OpenIR

	Local defect-induced red-shift of cathodoluminescence in individual ZnS nanobelts
	B. D. Liu; B. Yang; B. Dierre; T. Sekiguchi; X. Jiang
	2014
发表期刊	Nanoscale
ISSN	2040-3364
卷号	6 期号:21 页码:12414-12420
摘要	The luminescence of semiconductor nanostructures is strongly dependent on their size, dimensions, morphology, composition, or defects, and their band emissions can be properly and selectively tailored through the rational manipulation of these parameters during material growth. Using spatially-resolved cathodoluminescence spectroscopy, monochromatic contrast maps and high-resolution transmission electron microscopy, an obvious red-shift of the near-band-edge emission of wurtzite ZnS nanobelts, resulting from a strip of stacking faults or a zinc-blende phase with tens of atomic layers in width, has been observed and its related mechanism has been discussed. This finding is not specific to the defect-dependent optical properties tailoring of ZnS nanostructures and represents a general validity for clarifying the mechanism of peak-shift ( band-gap expansion or shrinking) of a wide range of semiconductor nanostructures with various defects. In addition, the general formation mechanism of the belt-like nano-structure was proposed based on precise microstructure analyses on a ZnS nanobelt with atomic terrace growth fronts.
部门归属	[liu, b. d. ; yang, b. ; jiang, x.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [dierre, b. ; sekiguchi, t.] natl inst mat sci, wpi ctr mat nanoarchitecton mana, tsukuba, ibaraki 3050044, japan. ; liu, bd (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china. ; baodanliu@imr.ac.cn ; xjiang@imr.ac.cn
关键词	Photoluminescence Properties Field Emitters Growth Nanostructures Nanowires Crystallography Luminescence
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73294
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	B. D. Liu,B. Yang,B. Dierre,et al. Local defect-induced red-shift of cathodoluminescence in individual ZnS nanobelts[J]. Nanoscale,2014,6(21):12414-12420.
APA	B. D. Liu,B. Yang,B. Dierre,T. Sekiguchi,&X. Jiang.(2014).Local defect-induced red-shift of cathodoluminescence in individual ZnS nanobelts.Nanoscale,6(21),12414-12420.
MLA	B. D. Liu,et al."Local defect-induced red-shift of cathodoluminescence in individual ZnS nanobelts".Nanoscale 6.21(2014):12414-12420.