Synthesis, Thermal Stability and Properties of ZnO2 Nanoparticles

• Published in: Journal of physical chemistry. C Vol. 113; no. 4; pp. 1320 - 1324
• Main Authors: Chen, W, Lu, Y. H, Wang, M, Kroner, L, Paul, H, Fecht, H.-J, Bednarcik, J, Stahl, K, Zhang, Z. L, Wiedwald, U, Kaiser, U, Ziemann, P, Kikegawa, T, Wu, C. D, Jiang, J. Z
• Format: Journal Article
• Language: English
• Published: American Chemical Society 29-01-2009
• Subjects: C: Nanops and Nanostructures
• ISSN: 1932-7447; 1932-7455
• DOI: 10.1021/jp808714v

ZnO2nanoparticles have been synthesized by an organometallic precursor method. The structure, structural stability, and magnetic and optical properties of ZnO2 nanoparticles have been investigated by experiments and first-principles calculations. It is found that ZnO2 nanoparticles decompose into ZnO at about 230 °C and is stable up to 36 GPa at ambient temperature. The cubic ZnO2 phase has a bulk modulus of B 0 = 174 GPa at zero pressure. Nanocrystalline ZnO2 material is an indirect semiconductor with an energy gap of about 4.5 eV and paramagnetic down to 5 K.