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  Polarity-Free Epitaxial Growth of Heterostructured ZnO/ZnS Core/Shell Nanobelts

Huang, X., Wang, M., Shao, L., Willinger, M. G., Lee, C.-S., & Meng, X.-M. (2013). Polarity-Free Epitaxial Growth of Heterostructured ZnO/ZnS Core/Shell Nanobelts. The Journal of Physical Chemistry Letters, 4(5), 740-744. doi:10.1021/jz4001533.

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Polarity-Free Epitaxial Growth of Heterostructured ZnO-ZnS Core-Shell Nanobelts.pdf (Any fulltext), 6MB
 
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 Creators:
Huang, Xing1, 2, 3, Author           
Wang, Meng2, 3, Author
Shao, Lidong1, Author           
Willinger, Marc Georg1, Author           
Lee, Chun-Sing4, Author
Meng, Xiang-Min2, Author
Affiliations:
1Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              
2Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, People’s Republic of China, ou_persistent22              
3University of Chinese Academy of Sciences, 19A Yuquan Road, 100049 Beijing, People’s Republic of China, ou_persistent22              
4Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, People’s Republic of China, ou_persistent22              

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Free keywords: polarity-free; heterostructure; epitaxial; wurtzite (WZ) structure; single-crystalline; ZnO/ZnS core/shell nanobelt; ZnS nanotube
 Abstract: Surface-polarity-induced formation of ZnO/ZnS heterojunctions has a common characteristic that ZnS (or ZnO) is exclusively decorated on a Zn-terminated (0001) surface of ZnO (or ZnS) due to its comparatively chemically active nature to an O (or S)-terminated (000–1) surface. Here, we report a polarity-free and symmetrical growth of ZnS on both ZnO±(0001) surfaces to form a new heterostructured ZnO/ZnS core/shell nanobelt via a thermal evaporation method. Remarkably, the ZnS shell is single-crystalline and preserves the structure and orientation of the inner ZnO nanobelt with an epitaxial relationship of (0001)ZnO//(0001)ZnS; [2–1–10]ZnO//[2–1–10]ZnS. Through this case, we demonstrate that an anion-terminated polar surface could also drive the nucleation and growth of nanostructures as the cation-terminated surface by controlling the growth kinetics. Considering high-performance devices based on ZnO/ZnS heterojunctions, the current ZnO/ZnS nanobelt is advantageous for optoelectronic applications due to its single-crystalline nature and relatively more efficient charge separation along 3D heterointerfaces.

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Language(s): eng - English
 Dates: 2013-01-222013-02-122013-02-122013-03-07
 Publication Status: Issued
 Pages: 5
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/jz4001533
 Degree: -

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Title: The Journal of Physical Chemistry Letters
  Abbreviation : JPCLett
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 4 (5) Sequence Number: - Start / End Page: 740 - 744 Identifier: CoNE: https://pure.mpg.de/cone/journals/resource/1948-7185