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Three-leaf dart-shaped single-crystal BN formation promoted by surface oxygen

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Yang, Hui; Yang, Jin; Ren, Xibiao; Chen, Haiyuan; Jagadish, Chennupati; Guo, Guang-Can; Jin, Chuanhong; Niu, Xiaobin; Guo, Guo-Ping

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Two-dimensional hexagonal boron nitride (h-BN) single crystals with various shapes have been synthesized by chemical vapor deposition over the past several years. Here, we report the formation of three-leaf dart (3LD)-shaped single crystals of h-BN on a Cu foil by atmospheric-pressure chemical vapor deposition. The leaves of the 3LD-shaped h-BN are as long as 18 μm, and their edges are smooth armchair on one side and stepped armchair on the other. Careful analysis revealed that surface oxygen...[Show more]

dc.contributor.authorYang, Hui
dc.contributor.authorYang, Jin
dc.contributor.authorRen, Xibiao
dc.contributor.authorChen, Haiyuan
dc.contributor.authorJagadish, Chennupati
dc.contributor.authorGuo, Guang-Can
dc.contributor.authorJin, Chuanhong
dc.contributor.authorNiu, Xiaobin
dc.contributor.authorGuo, Guo-Ping
dc.date.accessioned2019-10-09T04:30:26Z
dc.date.available2019-10-09T04:30:26Z
dc.identifier.issn0003-6951
dc.identifier.urihttp://hdl.handle.net/1885/173591
dc.description.abstractTwo-dimensional hexagonal boron nitride (h-BN) single crystals with various shapes have been synthesized by chemical vapor deposition over the past several years. Here, we report the formation of three-leaf dart (3LD)-shaped single crystals of h-BN on a Cu foil by atmospheric-pressure chemical vapor deposition. The leaves of the 3LD-shaped h-BN are as long as 18 μm, and their edges are smooth armchair on one side and stepped armchair on the other. Careful analysis revealed that surface oxygen plays an important role in the formation of the 3LD shape. Oxygen suppressed h-BN nucleation by passivating Cu surface active sites and lowered the edge attachment energy, which caused the growth kinetics to change to a diffusion-controlled mode.
dc.description.sponsorshipThis work was supported by the National Key Research and Development Program of China (Grant Nos. 2016YFA0301700 and 2018YFA0306100), the National Natural Science Foundation of China (Grant Nos. 11625419, 51772265, and 51761165024), the National Basic Research Program of China (Grant No. 2014CB923500), and the Anhui initiative in Quantum Information Technologies (Grant No. AHY080000). Part of this work was carried out at the USTC Center for Micro and Nanoscale Research and Fabrication. X.B. and C.J. acknowledge the Center for Electron Microscopy of Zhejiang University for access to the microscope facilities
dc.format.mimetypeapplication/pdf
dc.language.isoen_AU
dc.publisherAmerican Institute of Physics
dc.rights© 2018
dc.sourceApplied Physics Letters
dc.titleThree-leaf dart-shaped single-crystal BN formation promoted by surface oxygen
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume113
dc.date.issued2018
local.identifier.absfor020406 - Surfaces and Structural Properties of Condensed Matter
local.identifier.ariespublicationu4485658xPUB1354
local.publisher.urlhttps://www.aip.org/
local.type.statusPublished Version
local.contributor.affiliationYang, Hui, Chinese Academy of Sciences
local.contributor.affiliationYang, Jin, University of Electronic Science and Technology of China
local.contributor.affiliationRen, Xibiao, Zhejiang University
local.contributor.affiliationChen, Haiyuan, University of Electronic Science and Technology of China
local.contributor.affiliationJagadish, Chennupati, College of Science, ANU
local.contributor.affiliationGuo, Guang-Can, Chinese Academy of Sciences
local.contributor.affiliationJin, Chuanhong, Zhejiang University
local.contributor.affiliationNiu, Xiaobin, University of Electronic Science and Technology of China
local.contributor.affiliationGuo, Guo-Ping, Chinese Academy of Sciences
local.bibliographicCitation.issue16
local.bibliographicCitation.startpage163101-1
local.bibliographicCitation.lastpage163101-5
local.identifier.doi10.1063/1.5041462
local.identifier.absseo970102 - Expanding Knowledge in the Physical Sciences
dc.date.updated2019-04-21T08:29:58Z
local.identifier.scopusID2-s2.0-85054954236
dcterms.accessRightsOpen Access
dc.provenancehttp://sherpa.ac.uk/romeo/issn/0003-6951/..."Publishers version/PDF may be used on author's personal website, arXiv, institutional website, institutional repository, funders designated repository or private forums on social academic network after 12 months embargo" from SHERPA/RoMEO site (as at 9/10/19).
CollectionsANU Research Publications

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