Size dependent nonlinear optical properties of silver quantum clusters

作者：Khan Sadia Afrin; Senapati Dulal; Senapati Tapas; Bonifassi P; Fan Zhen; Singh Anant Kumar; Neeley Adria; Hill Glake; Ray Paresh Chandra^*

来源：Chemical Physics Letters, 2011, 512(1-3): 92-95.

DOI：10.1016/j.cplett.2011.07.014

Using solution-based method, silver quantum clusters of different sizes (Ag-20, Ag-140 and Ag-980) have been synthesized and their first hyper-polarizabilities were measured using hyper-Rayleigh scattering technique. We have shown that nonlinear optical properties of silver quantum cluster are highly dependent on the size of quantum cluster. Time-dependent density functional theory calculations using the Amsterdam Density Functional (ADF) program package are used to evaluate linear and nonlinear optical properties of silver tetrahedral Ag-n (n = 10, 20, 35, 56) clusters. Both theoretical and experimental data have shown that nonlinear as well as linear optical properties are highly dependent on the size of silver quantum cluster.

• 出版日期2011-8-16