title: Synthesis and third-order nonlinear optical properties of triphenylene derivatives modified by click chemistry.
abstract: A series of asymmetric triphenylene derivatives containing typical D-π-A structures is successfully synthesized by means of [2+2] cycloaddition-cycloreversion click reactions. The photophysical and electrochemical properties, as well as the click reactions, are characterized by means of UV/Vis absorption spectroscopy, cyclic voltammetry, and DFT modulations. In addition, the third-order nonlinear properties, including the nonlinear absorption and the nonlinear susceptibilities, are investigated by using Z-scan techniques. A typical reverse saturable absorption-saturable absorption behavior is observed for the third-order nonlinear absorption, with the third-order nonlinear susceptibilities of the compounds being 1.05×10(-12) , -1.50×10(-12) , and -0.52×10(-12) esu, respectively.
authors: School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083 (China).
authors: Yongsheng
authors: Y
authors: Mi
authors: Pengxia
authors: P
authors: Liang
authors: Zhaokui
authors: Z
authors: Jin
authors: Dong
authors: D
authors: Wang
authors: Zhou
authors: Z
authors: Yang
keywords: D-π-A structures; click chemistry; nonlinear optics; synthesis; triphenylene derivatives