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Bi2Te3 Plates with Single Nanopore: The Formation of Surface Defects and Self-Repair Growth
Dun, Chaochao1; Hewitt, Corey A.1; Jiang, Qike2; Guo, Yang1,3; Xu, Junwei1; Li, Yan4; Li, Qi5; Wang, Hongzhi3; Carroll, David L.1
Source PublicationCHEMISTRY OF MATERIALS
2018-03-27
ISSN0897-4756
DOI10.1021/acs.chemmater.7b04985
Volume30Issue:6Pages:1965-1970
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Materials Science
WOS KeywordENHANCED THERMOELECTRIC PROPERTIES ; EPITAXIAL-GROWTH ; MOS2 NANOPORES ; BI2SE3 ; DNA ; HETEROSTRUCTURES ; NANOSHEETS ; TRANSPORT ; CRYSTALS
AbstractSelf-assembly has proven to be a powerful method of preparing structurally intricate nanostructures. In this work, we design a nanoscale "Chinese Coin" based on Bi2Te3 nanoplates (NPs) by using a simple and scalable solution process; i.e., a single pore is introduced on a hexagonal/round plate similar to a fender washer. The diameter of the nanopores is well controlled within the range of 5-100 nm and depends strongly on the reaction time and heating temperatures, suggesting a kinetics related mechanism. Moreover, the thermal evolution of stable Bi2Te3 plate-pore structures was systematically explored to elucidate the underlying energetics of the V-2-VI3 chalcogenides. We found that the nanopore is initiated near the middle of the plate, followed by the successive removl of Bi2Te3 slices from the high edge-energy pore with increased temperatures (70-150 degrees C), leading finally to the formation of a stable nanopore. The morphology of the pore as well as the local lattice crystallinity was studied using high-resolution transmission electron microscopy and first-principles calculations. On the basis of these observations, a self-repair mechanism for pores under the stability diameter is proposed from the viewpoint of reaction kinetics.
Language英语
WOS IDWOS:000428712200018
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/168981
Collection中国科学院大连化学物理研究所
Corresponding AuthorCarroll, David L.
Affiliation1.Wake Forest Univ, Dept Phys, Ctr Nanotechnol & Mol Mat, Winston Salem, NC 27109 USA
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China
4.Wake Forest Univ, Dept Phys, Winston Salem, NC 27109 USA
5.IBM Thomas J Watson Ctr, Phys Sci Div, Yorktown Hts, NY 10598 USA
Recommended Citation
GB/T 7714
Dun, Chaochao,Hewitt, Corey A.,Jiang, Qike,et al. Bi2Te3 Plates with Single Nanopore: The Formation of Surface Defects and Self-Repair Growth[J]. CHEMISTRY OF MATERIALS,2018,30(6):1965-1970.
APA Dun, Chaochao.,Hewitt, Corey A..,Jiang, Qike.,Guo, Yang.,Xu, Junwei.,...&Carroll, David L..(2018).Bi2Te3 Plates with Single Nanopore: The Formation of Surface Defects and Self-Repair Growth.CHEMISTRY OF MATERIALS,30(6),1965-1970.
MLA Dun, Chaochao,et al."Bi2Te3 Plates with Single Nanopore: The Formation of Surface Defects and Self-Repair Growth".CHEMISTRY OF MATERIALS 30.6(2018):1965-1970.
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