Chang, Po-Hsun Tsai, Hsieh-Chih Chen, Yu-Ren Chen, Jian-Yu Hsiue, Ging-Ho Thermal Stability and Structural Characterization of Organic/Inorganic Hybrid Nonlinear Optical Material Containing a Two-Dimensional Chromophore In this study, two nonlinear optic hybrid materials with different dimensional alkoxysilane dyes were prepared and characterized. One NLO silane (Cz2PhSO<sub>2</sub>OH- TES), a two-dimensional structure based on carbazole, had a larger rotational volume than the other (DR19-TES). Second harmonic (<i>d</i><sub>33</sub>) analysis verified there is an optimum heating process for the best poling efficiency. The maximum <i>d</i><sub>33</sub> value of NLO hybrid film containing Cz2PhSO<sub>2</sub>OH was obtained for 10.7 pm/V after precuring at 150 °C for 3 h and poling at 210 °C for 60 min. The solid-state <sup>29</sup>Si NMR spectrum shows that the main factor influencing poling efficiency and thermal stability was cross-linking degree of NLO silane, but not that of TMOS. In particular, the two-dimensional sol−gel system has a greater dynamic and temporary stability than the one-dimensional system due to Cz2PhSO<sub>2</sub>OH-TES requiring a larger volume to rotate in the hybrid matrix after cross-linking. TMOS;DR;29 Si NMR spectrum;Cz 2PhSO;stability;TES;efficiency;NLO silane;volume 2008-10-21
    https://acs.figshare.com/articles/journal_contribution/Thermal_Stability_and_Structural_Characterization_of_Organic_Inorganic_Hybrid_Nonlinear_Optical_Material_Containing_a_Two_Dimensional_Chromophore/2906134
10.1021/la802213v.s001