Abstract Novel nonlinear optical semi-organic, potassium phthalate di lithium borate (KPDLiB) single crystals were successfully grown by the slow solvent evaporation technique. Good crystalline nature and an orthorhombic structure were confirmed by powder X-ray diffraction and single crystal X-ray diffraction studies. The functional groups of KPDLiB were identified using FT-IR spectrum recorded in the range of 4000 cm−1 to 450 cm−1. UV-Vis spectrum showed transmitting ability of the crystals in the entire visible region. The photoluminescence spectrum exhibited good fluorescence emission in a visible region at 384 nm, 416 nm and 578 nm. The second harmonic generation efficiency of the grown crystal was evaluated from Kurtz powder technique.

中文翻译：

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新型非线性光学邻苯二甲酸钾二硼酸锂 (KPDLiB) 单晶的生长、结构和光学特性

摘要 通过溶剂缓慢蒸发技术成功生长了新型非线性光学半有机邻苯二甲酸钾二硼酸锂（KPDLiB）单晶。通过粉末 X 射线衍射和单晶 X 射线衍射研究证实了良好的结晶性质和正交结构。使用在 4000 cm-1 至 450 cm-1 范围内记录的 FT-IR 光谱鉴定 KPDLiB 的官能团。UV-Vis 光谱显示了晶体在整个可见光区的透射能力。光致发光光谱在可见光区 384 nm、416 nm 和 578 nm 处表现出良好的荧光发射。生长晶体的二次谐波产生效率由库尔兹粉末技术评估。