Effects of host and particle shape on the optical nonlinearities of nanocomposites

• Published in: Colloids and surfaces. A, Physicochemical and engineering aspects Vol. 298; no. 1; pp. 58 - 62
• Main Authors: Chang, Qing, Ye, Hongan, Song, Yinglin
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 20.04.2007; Elsevier
• Subjects: Chemistry; Colloidal state and disperse state; Exact sciences and technology; General and physical chemistry; Maxwell–Garnett Effective Medium Theory; Nanoparticles; Nanorods; Physical and chemical studies. Granulometry. Electrokinetic phenomena; Shape effect; Surface physical chemistry; ZnO; Nanoparticles; Maxwell–Garnett Effective Medium Theory; ZnO; Shape effect; Nanorods; Nanoparticle; Theory; Transition element compounds; Maxwell-Garnett Effective Medium Theory; Chemistry; Nonlinearity; Nanocomposite; Particle shape; Interface
• ISSN: 0927-7757; 1873-4359
• DOI: 10.1016/j.colsurfa.2006.12.009

Effects of host and particle shape on the third-order optical nonlinearities of ZnO nanorods and ZnO nanoparticles were studied by using Z-scan technique with nanosecond pulses at 532 nm. The experimental results show that the third-order optical nonlinearities of ZnO nanorods are bigger than that of ZnO nanoparticles. Experimental results show that ZnO nanorods water suspension exhibits bigger third-order nonlinear optical nonlinearity than that of ZnO nanorods ethanol suspension. The experimental results show that the third-order nonlinear optical performances strongly dependent on the shape and host of the nanomaterials as described by the Maxwell–Garnett Effective Medium Theory, MGT.