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Title: Te-seeded growth of few-quintuple layer Bi2Te3 nanoplates
Authors: Gao, Xuan P. A.
Arbiol, Jordi
Xiong, Qihua
Qiu, Richard L. J.
Zhao, Yanyuan
de la Mata, Maria
Zhang, Jun
Wen, Xinglin
Magen, Cesar
Keywords: DRNTU::Engineering::Materials::Nanostructured materials
Issue Date: 2014
Source: Zhao, Y., de la Mata, M., Qiu, R. L. J., Zhang, J., Wen, X., Magen, C., et al. (2014). Te-seeded growth of few-quintuple layer Bi2Te3 nanoplates. Nano research, 7(9), 1243-1253.
Series/Report no.: Nano research
Abstract: We report on a Te-seeded epitaxial growth of ultrathin Bi2Te3 nanoplates (down to three quintuple layers) with large planar sizes (up to tens of micrometers) through vapor transport. Optical contrast has been systematically investigated for the as-grown Bi2Te3 nanoplates on the SiO2/Si substrates, experimentally and computationally. The high and distinct optical contrast provides a fast and convenient method for the thickness determination of few-quintuple layer (QL) Bi2Te3 nanoplates. By aberration corrected scanning transmission electron microscopy, a hexagonal crystalline structure has been identified for the Te seeds, which form naturally during the growth process and initiate an epitaxial growth of the rhombohedral-structured Bi2Te3 nanoplates. The epitaxial relationship between Te and Bi2Te3 is identified to be perfect along both in-plane and out-of-plane directions of the layered nanoplate. Similar growth mechanism might be expected for other bismuth chalcogenide layered materials.
DOI: 10.1007/s12274-014-0487-y
Rights: © 2014 Tsinghua University Press and Springer-Verlag Berlin Heidelberg. This is the author created version of a work that has been peer reviewed and accepted for publication by Nano Research, Springer-Verlag Berlin Heidelberg. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles
SPMS Journal Articles

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