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Pressure-induced phase transformation in controlled shape ZnO nanorods
Wu X(巫翔); Wu ZY(吴自玉); Guo L(郭林); Liu J(刘景); Li XD(李晓东); Wu, X; Wu, ZY; Guo, L; Liu, CM; Liu, J; Li, XD; Xu, HB
Corresponding AuthorChinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100039, Peoples R China ; Chinese Acad Sci, Grad Sch, Beijing 100864, Peoples R China ; Beijing Univ Aeronaut & Astronaut, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
AbstractWe present an in situ energy-dispersive X-ray diffraction study of pressure-induced phase transformations in ZnO nanorods and the corresponding bulk material up to 35.0 GPa at room temperature. ZnO nanorods with the wurtzite (P6(3)mc) structure start to transform to a rocksalt (Fm3m) structure at a pressure of 8.0 GPa, a pressure appreciably higher than the value observed for the bulk material (7.0 GPa). This behavior suggests that both the volume collapse and the surface energy difference between the phases involved mainly govern the change of the transition pressure. The reduction of the particle size for ZnO crystallites leads to a significant increase of the bulk modulus (B-O) and the pressure range of the coexistence of the wurtzite and rocksalt phases suggest that hardness of ZnO nanorods is higher than ZnO bulk. (C) 2005 Elsevier Ltd. All rights reserved.
KeywordZnO nanorods phase transformation high pressure
Subject AreaPhysics
Indexed ByADS
WOS Research AreaPhysics
WOS SubjectPhysics, Condensed Matter
WOS IDWOS:000231577600026
ADS Bibcode2005SSCom.135..780W
ADS URLhttps://ui.adsabs.harvard.edu/abs/2005SSCom.135..780W
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2005SSCom.135..780W/citations
Citation statistics
Cited Times:11 [ADS]
Document Type期刊论文
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Wu X,Wu ZY,Guo L,et al. Pressure-induced phase transformation in controlled shape ZnO nanorods[J]. SOLID STATE COMMUNICATIONS,2005,135(11-12):780-784.
APA 巫翔.,吴自玉.,郭林.,刘景.,李晓东.,...&Xu, HB.(2005).Pressure-induced phase transformation in controlled shape ZnO nanorods.SOLID STATE COMMUNICATIONS,135(11-12),780-784.
MLA 巫翔,et al."Pressure-induced phase transformation in controlled shape ZnO nanorods".SOLID STATE COMMUNICATIONS 135.11-12(2005):780-784.
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