Large-scale synthesis of ZnS nanosheets by the evaporation of ZnS nanopowders

• Published in: Journal of crystal growth 2004-03, Vol.263 (1-4), p.263-268
• Main Authors: Fang, Xiao-Sheng, Ye, Chang-Hui, Peng, Xin-Sheng, Wang, Yin-Hai, Wu, Yu-Cheng, Zhang, Li-De
• Format: Article
• Language: English
• Subjects: A1. Characterization; A1. Nanostructures; A2. Growth from vapor; A3. Chemical vapor deposition process; B1. Nanomaterials; B2. Semiconducting II–IV materials; Chemical synthesis methods; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Ii-vi semiconductors; Materials science; Methods of nanofabrication; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Photoluminescence; Physics
• ISSN: 0022-0248; 1873-5002
• DOI: 10.1016/j.jcrysgro.2003.11.056

Large-scale synthesis of semiconductor ZnS nanosheets was achieved by the evaporation of ZnS nanopowders. Scanning electron microscopy (SEM), transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM) observations show that the ZnS nanosheets have a typical width of 1–10μm and an average thickness of about 20nm. The as-synthesized ZnS nanosheets have a hexagonal wurtzite structure and most of the ZnS nanosheets grow along [001], however, [100] and [101̄] can also be observed frequently. And photoluminescence (PL) measurements showed that the as-synthesized nanosheets have a stable and strong green emission band centered at 545nm, and a weaker blue emission band centered at 440nm.