Journal
MATERIALS RESEARCH BULLETIN
Volume 75, Issue -, Pages 134-138Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2015.11.043
Keywords
Oxides; Chemical synthesis; X-ray diffraction; Transmission electron microscopy; Crystal structure
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Funding
- Department of Science and Technology, Govt. of India
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This letter reports the observations of planar two-dimensional ZnO synthesized using the hydrothermal growth technique. High-resolution transmission electron microscopy revealed the formation of a two-dimensional honeycomb lattice and aggregated structures of layered ZnO. The nonpolar (10-10) and (11-20) planes were present in the X-ray diffraction patterns, but the characteristic (0 0 0 1) peak of bulk ZnO was absent. The study found that nonpolar freestanding ZnO structures composed of a single or few layers may be more stable and may have a higher probability of formation than their polar counterparts. The stability of the nonpolar two-dimensional hexagonal ZnO slabs is supported by density functional theory studies. (C) 2015 Elsevier Ltd. All rights reserved.
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