Slow evaporation method was used to grow the pure and K⁺ ion doped L-Lysine monohydrochloride (L-LMHCL) crystals which has optical and antibiotic applications. The space group, structure and slight shifting of peaks are confirmed using single crystal XRD and the powder XRD. The FTIR analysis also shows that the K⁺ doped L-LMHCL has a slight shifting in the spectrum which indicates the functional group of L-LMHCL and the interaction between the K⁺ ions. The existence of K⁺ ion in the doped crystal is assured by the presence of potassium in the EDAX spectrum. The wide optical band gap was found for pure and K⁺ doped crystal using UV spectra and these are utilized in optoelectronic and nonlinear applications. The Kurtz Perry technique specified the NLO property of grown crystals. The dielectric property crystals was studied by varying the temperature. As a result, the highest dielectric constant is observed in doped crystal. An antibacterial activity against certain bacteria like E-coli, pseudomonas aeruginosa and staphylococcus aureus are provided by mm range for the grown crystals.

缓慢蒸发法用于生长具有光学和抗生素应用的纯净和K ⁺离子掺杂的L-赖氨酸单盐酸盐（L-LMHCL）晶体。使用单晶XRD和粉末XRD确认了峰的空间群，结构和轻微移动。FTIR分析还表明，掺杂K ^+的L-LMHCL在光谱中具有轻微的偏移，这表明L-LMHCL的官能团以及K ⁺离子之间的相互作用。EDAX光谱中钾的存在确保了掺杂晶体中K ⁺离子的存在。发现纯和K ⁺的宽光学带隙用紫外光谱掺杂晶体，这些光谱被用于光电和非线性应用中。Kurtz Perry技术指定了生长晶体的NLO特性。通过改变温度来研究介电特性晶体。结果，在掺杂的晶体中观察到最高的介电常数。通过生长的晶体的mm范围，提供了对某些细菌如大肠杆菌，铜绿假单胞菌和金黄色葡萄球菌的抗菌活性。