Observations of two-dimensional monolayer zinc oxide. (March 2016)

• Record Type: Journal Article
• Authors: Sahoo, Trilochan; Nayak, Sanjeev K.; Chelliah, Pandian; Rath, Manasa K.; Parida, Bhaskar
• Is Part Of: Materials research bulletin. Volume 75(2016)
• Page Start: 134
• Page End: 138
• Publication Date: 2016-03
• Subjects: A. Oxides -- B. Chemical synthesis -- C. X-ray diffraction -- C. Transmission electron microscopy -- D. Crystal structure; Materials -- Periodicals; Crystal growth -- Periodicals; Matériaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Crystal growth; Materials; Periodicals; 620.11
• DOI: 10.1016/j.materresbull.2015.11.043
• Languages: English
• ISSNs: 0025-5408

Abstract

Graphical abstract: Highlights: Synthesis of planer ZnO nanostructure. Observation of multilayered and monolayer ZnO. DFT calculation of (10-10), (11-20) and (0 0 0 1) planes of ZnO. Stability of non-polar (10-10) and (11-20) planes of ZnO. Abstract: 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.