Molecular Dynamics of Flexible Polar Cations in a Variable Confined Space: Toward Exceptional Two-Step Nonlinear Optical Switches

Wei-Jian Xu; Chun-Ting He; Cheng-Min Ji; Shao-Li Chen; Rui-Kang Huang; Rui-Biao Lin; Wei Xue; Jun-Hua Luo; Wei-Xiong Zhang; Xiao-Ming Chen

doi:10.1002/adma.201600895

Molecular Dynamics of Flexible Polar Cations in a Variable Confined Space: Toward Exceptional Two-Step Nonlinear Optical Switches

Adv Mater. 2016 Jul;28(28):5886-90. doi: 10.1002/adma.201600895. Epub 2016 May 9.

Authors

Affiliations

¹ MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, 510275, P. R. China.
² Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China.

PMID: 27159779
DOI: 10.1002/adma.201600895

Abstract

The changeable molecular dynamics of flexible polar cations in the variable confined space between inorganic chains brings about a new type of two-step nonlinear optical (NLO) switch with genuine "off-on-off" second harmonic generation (SHG) conversion between one NLO-active state and two NLO-inactive states.

Keywords: ferroelectrics; flexible polar cations; molecular dynamics; nonlinear optical switches; phase transitions.