Study of the electrical and nanosecond third order nonlinear optical properties of ZnO films doped with Au and Pt nanoparticles
Por:
Trejo-Valdez, Martin, Sobral, Hugo, Martinez-Gutierrez, Hugo, Torres-Torres, Carlos
Publicada:
30 abr 2016
Resumen:
Zinc oxide films doped with platinum and gold nanoparticles were deposited by the spray pyrolysis technique on glass substrates. A titanium dioxide sol-gel solution containing gold and platinum aqueous ions was employed for synthesizing the nanoparticles by ultraviolet-light irradiation. The conductive properties of the samples were characterized by the electrochemical impedance spectroscopy technique. Our results showed that the impedance of zinc oxide films doped with metallic nanoparticles was, by far, lower than typical measurements in zinc oxide films. A strong enhancement in the nanosecond nonlinear optical response was also obtained in the studied metallic doped films. A vectorial two-mixing experiment performed at 532 nm and 4 ns allowed us to evaluate the sample with a third order optical nonlinearity described by approximately | ?1111 (3)| = 2.6 × 10- 8esu. © 2015 Elsevier B.V. All rights reserved.
Filiaciones:
Trejo-Valdez, Martin:
Inst Politecn Nacl, ESIQIE, Mexico City 07738, DF, Mexico
Sobral, Hugo:
Univ Nacl Autonoma Mexico, Ctr Ciencias Aplicadas & Desarrollo Tecnol, Apartado Postal 70-186, Mexico City 04510, DF, Mexico
Martinez-Gutierrez, Hugo:
Inst Politecn Nacl, Ctr Nanociencias & Micro & Nanotecnol, Mexico City 07738, DF, Mexico
Torres-Torres, Carlos:
Inst Politecn Nacl, ESIME ZAC, Secc Estudios Posgrad & Invest, Mexico City 07738, DF, Mexico
|