Song Yunxia, Hao Xia, Lin Chensheng, Lin Donghong, Luo Min, Ye Ning
School of Electronic, Electrical Engineering and Physics, Fujian University of Technology, Fuzhou 350108, China.
Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
Inorg Chem. 2021 Aug 2;60(15):11412-11418. doi: 10.1021/acs.inorgchem.1c01401. Epub 2021 Jul 21.
Two tellurium(IV)-based sulfate nonlinear optical (NLO) materials, TeO(SO) and Te(OH)(SO)·HO, were successfully synthesized via the mild hydrothermal method. TeOSO has a two-dimensional (2D) structure consisting of [TeO] layers as well as [SO] groups. Te(OH)(SO)·HO features a simple 0D structure made up of an isolated [TeO] pyramid and a [SO] tetrahedra. Both of them are phase-matching materials and show remarkable powder second harmonic generation (SHG) efficiencies about 6 and 3 times that of KHPO (KDP), respectively, for TeOSO and Te(OH)(SO)·HO. Especially for Te(OH)(SO)·HO, in addition to a large SHG response, it possesses a short UV cutoff edge (∼233 nm) as well as moderate birefringence (0.052@546.1 nm). Furthermore, theoretical calculations confirmed that their strong SHG effects are due to the synergistic effect of the [TeO] pyramid and [SO] tetrahedra.
通过温和水热法成功合成了两种碲（IV）基硫酸盐非线性光学（NLO）材料，即TeO(SO)和Te(OH)(SO)·HO。TeOSO具有二维（2D）结构，由[TeO]层以及[SO]基团组成。Te(OH)(SO)·HO具有简单的零维（0D）结构，由孤立的[TeO]金字塔和[SO]四面体组成。它们都是相位匹配材料，对于TeOSO和Te(OH)(SO)·HO，其粉末二次谐波产生（SHG）效率分别约为磷酸二氢钾（KDP）的6倍和3倍，表现出显著的效率。特别是对于Te(OH)(SO)·HO，除了具有大的SHG响应外，它还具有短的紫外截止边（约233nm）以及适度的双折射（546.1nm处为0.052）。此外，理论计算证实它们强烈的SHG效应是由于[TeO]金字塔和[SO]四面体的协同作用。
