Structure and field emission properties of SnO2 nanowires期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Structure and field emission properties of SnO2 nanowires

Affiliation:	1. Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50202, Thailand;2. Nanoelectronics and MEMS Laboratory, National Electronics and Computer Technology Center, National Science and Technology Development Agency, Klong Luang, Pathumthani 12120, Thailand;3. Materials Science Research Center, Faculty of Science, Chiang Mai University, Chiang Mai 50202, Thailand;1. “Petru Poni” Institute of Macromolecular Chemistry, Aleea Grigore Ghica Voda, 41A, Iasi 700487, Romania;2. Faculty of Physics, “Al. I. Cuza” University, Iasi 700506, Romania;3. National Institute of Research and Development for Technical Physics, Iasi RO-700050, Romania;1. Department of Physics, Mahendra Engineering College, Tiruchengode 637 503, Tamilnadu, India;2. Department of Physics, National Institute of Technology, Tiruchirappalli 620 015, Tamilnadu, India

Abstract:	SnO₂ nanowires were fabricated using a simple and economical method of rapid heating SnO₂ and graphite powders at 850 °C in a flow of high-purity N₂ as carrier gas. Research by using X-ray diffraction (XRD) indicates that SnO₂ nanowires are primitive tetragonal in structure with the lattice constant a = b = 0.443 nm and c = 0.372 nm. Observations by using scanning electron microscopy (SEM) and transmission electron microscopy (TEM) show that SnO₂ is of nanowire structure. The selected area electron diffraction (SAED) shows that the nanowires are perfect single crystal structure. The Fourier transform infrared (FT-IR) exhibits the difference of nanostructure materials and general materials. The field emission (FE) properties had also been studied.

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