Reliable and well-controlled synthesis of noble metal nanoparticles by continuous wave laser ablation in different liquids for deposition of thin films with variable optical properties
- 285 Downloads
We report the results of continuous wave laser interactions with both gold and silver targets in the presence of different liquids (deionized water, ethanol, and glycerol). Upon moderate laser irradiation at wavelength of 1.06 nm during 30 min, nanoparticle colloids are shown to be formed with surprisingly narrow size distributions and average dispersion as small as 15–20 nm. The average particle sizes range between 8 and 52 nm for gold and between 20 and 107 nm for silver. This parameter is shown to be stable and well-controlled by such laser parameters as intensity and effective irradiation time, as well as by the choice of the liquid phase. The possibilities of an efficient control over the proposed synthesis techniques are discussed, and the results of a bimetallic Au–Ag structure deposition from the obtained colloids are presented. The formation of the extended arrays of gold and silver nanoparticles with controlled morphology is examined. The changes in the optical properties of the obtained thin films are found to depend on their morphology, in particular, on the particle size, and distance between them.
KeywordsContinuous laser Colloidal solution Nanoparticles Processing
The study was supported by the Ministry of Education and Science of the Russian Federation (state project no. 2014/13), RBFR Grant number 16-32-60067 mol_a_dk, by the Government of Russian Federation (Grant no. 074-U01), and by France-Russia collaborative project PICS 6106 of DRI CNRS, France.
- Abramov DV, Antipov AA, Arakelian SM, Khor’kov KS, Kucherik AO, Kutrovskaya SV, Prokoshev VG (2014) New advantages and challenges for laser-induced nanostructured cluster materials: functional capability for experimental verification of macroscopic quantum phenomena. Laser Phys. 24:074010. doi: 10.1088/1054-660X/24/7/074010
- Akman E, Genc Oztoprak B, Gunes M, Kacar E, Demir A (2011) Effect of femtosecond Ti:Sapphire laser wavelengths on plasmonic behaviour and size evolution of silver nanoparticles. Photon Nanostruct Fundam Appl 9:276–286. doi: 10.1016/j.photonics.2011.05.004
- Destouches N, Crespo-Monteiro N, Vitrant G, Lefkir Y, Reynaud S, Epicier T, Liu Y, Vocanson F, Pigeon F (2014) Self-organized growth of metallic nanoparticles in a thin film under homogeneous and continuous-wave light excitation. J Mater Chem C 2:6256–6263. doi: 10.1039/C4TC00971A CrossRefGoogle Scholar
- Genov DA, Sarychev AK, Shalaev VM, Wei A (2004) Resonant field enhancements from metal nanoparticle arrays. Nano Lett 4:153–158. doi: 10.1021/nl0343710