中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Manipulation of the morphology of semiconductor-based nanostructures from core-shell nanoparticles to nanocables: the case of cdse/sio2

文献类型:期刊论文

作者Wang, Zhenyang; Lu, Qifei; Kong, Mingguang; Zhang, Lide
刊名Chemistry-a european journal
出版日期2007
卷号13期号:5页码:1463-1470
关键词Cadmium selenide Core-shell nanoparticles Nanocables Nanostructures Optical properties
ISSN号0947-6539
DOI10.1002/chem.200501425
通讯作者Wang, zhenyang(zywang@issp.ac.cn)
英文摘要The morphology of cdse/sio2 was manipulated from core-shell-structured nanoparticles to nanocables by using a chemical vapor deposition (cvd) process. the growth of nanocables, with cores no more than 20 mn in diameter, is initiated by the formation of core-shell nanoparticles with sio2 as matrix and cdse clusters dispersed inside. after the subsequent vaporization of the sio2 matrix, the follow-up cdse vapor crystallizes with the remaining cdse clusters as nuclei to form cdse nanowires as the furnace was cooled to 1200 degrees c. during the controlled cooling of the furnace, the sio vapor re-deposits to sheathe the nanowires. the thickness of the shell and the diameter of core were successfully controlled. the photoluminescence measurements show that the cdse/sio2 nanocables have strong visible-light emission bands located at 590 and 688 nm, which are attributed to the defects induced by sio2 sheaths nanowires and the quantum confinement effect of the cdse, respectively. the uv/vis absorption spectra of the naked cdse nanowires further validate the above-mentioned quantum confinement effect. the deterministic growth of these nanocables is very important for the design of the nanodevices based on them.
WOS关键词FILLED SILICA NANOTUBES ; CDSE NANOCRYSTALS ; LASER-ABLATION ; SI NANOWIRES ; GROWTH ; FABRICATION ; PHOTOLUMINESCENCE ; CONFINEMENT
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
语种英语
WOS记录号WOS:000244220400012
出版者WILEY-V C H VERLAG GMBH
URI标识http://www.irgrid.ac.cn/handle/1471x/2382192
专题中国科学院大学
通讯作者Wang, Zhenyang
作者单位Chinese Acad Sci, Grad Sch, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714
Wang, Zhenyang,Lu, Qifei,Kong, Mingguang,et al. Manipulation of the morphology of semiconductor-based nanostructures from core-shell nanoparticles to nanocables: the case of cdse/sio2[J]. Chemistry-a european journal,2007,13(5):1463-1470.
APA Wang, Zhenyang,Lu, Qifei,Kong, Mingguang,&Zhang, Lide.(2007).Manipulation of the morphology of semiconductor-based nanostructures from core-shell nanoparticles to nanocables: the case of cdse/sio2.Chemistry-a european journal,13(5),1463-1470.
MLA Wang, Zhenyang,et al."Manipulation of the morphology of semiconductor-based nanostructures from core-shell nanoparticles to nanocables: the case of cdse/sio2".Chemistry-a european journal 13.5(2007):1463-1470.

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来源:中国科学院大学

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