纳米氧化锌的合成、表征、发光及非线性光学响应

Multian Volodymyr V, Uklein Andrii V, Zaderko Alexander N, Kozhanov Vadim O, Boldyrieva Olga Yu, Linnik Rostyslav P, Lisnyak Vladyslav V, Gayvoronsky Volodymyr Ya

Institute of Physics, National Academy of Science of Ukraine, 46, Prospect Nauky, Kyiv, 03680, Ukraine.

Faculty of Chemistry, Taras Shevchenko National University of Kyiv, 62a, Volodymyrska Str., Kyiv, 01601, Ukraine.

Nanoscale Res Lett. 2017 Dec;12(1):164. doi: 10.1186/s11671-017-1934-y. Epub 2017 Mar 3.

In this study, we report soft and solvothermal methods for synthesis of zinc oxide nanoparticles (ZnO NPs). Both methods involve a precursor and are carried out at the middle low-temperature regime. The effect of different solvents on the ZnO NPs properties was studied. The nonlinear optical (NLO) response of the NPs was analyzed by the self-action of picosecond laser pulses at 1064 nm and by second harmonic generation (SHG) of a femtosecond laser pulses pump at 800 nm. The luminescence was studied within UV-visible ranges. It was shown that the NLO response efficiency significantly depends on the solvent. The obtained SHG efficiency of small (~~2 nm) ZnO NPs is comparable to the one obtained for large (~~150 nm) commercial ZnO NPs. The observed results are important for the application of the ZnO NPs in biolabeling.

在本研究中，我们报告了用于合成氧化锌纳米颗粒（ZnO NPs）的软化学法和溶剂热法。这两种方法都涉及一种前驱体，且均在中低温条件下进行。研究了不同溶剂对ZnO NPs性能的影响。通过1064 nm皮秒激光脉冲的自作用以及800 nm飞秒激光脉冲泵浦的二次谐波产生（SHG）来分析纳米颗粒的非线性光学（NLO）响应。在紫外-可见光范围内研究了发光情况。结果表明，NLO响应效率显著取决于溶剂。所获得的小尺寸（约2 nm）ZnO NPs的SHG效率与大尺寸（约150 nm）商业ZnO NPs的相当。观察到的结果对于ZnO NPs在生物标记中的应用具有重要意义。