Limosani Francesca, Tessore Francesca, Forni Alessandra, Lembo Angelo, Di Carlo Gabriele, Albanese Cecilia, Bellucci Stefano, Tagliatesta Pietro
Department of Chemical Science and Technologies, University of Rome "Tor Vergata", Via della Ricerca Scientifica 1, 00133 Rome, Italy.
Department of Chemistry, University of Milan, Via C. Golgi 19, 20133 Milan, Italy.
Materials (Basel). 2023 Aug 2;16(15):5427. doi: 10.3390/ma16155427.
Following some previous work by some of us on the second order nonlinear optical (NLO) properties of Zn(II) -tetraphenylporphyrin (ZnP), fullerene, and ferrocene (Fc) diads and triads, in the present research, we explore the NLO response of some new hybrids with two-dimensional graphene nanoplates (GNP) instead of a zero-dimensional fullerene moiety as the acceptor unit. The experimental data, collected by Electric Field Induced Second Harmonic generation (EFISH) technique in CHCl solution with a 1907 nm incident wavelength, combined with Coupled-Perturbed (CP) and Finite Field (FF) Density Functional Theory (DFT) calculations, show a strongly enhanced contribution of the cubic electronic term γ(-2ω; ω, ω, 0), due to the extended π-conjugation of the carbonaceous acceptor moiety.
在我们中的一些人之前对锌（II）-四苯基卟啉（ZnP）、富勒烯和二茂铁（Fc）二元及三元体系的二阶非线性光学（NLO）性质开展了一些工作之后，在本研究中，我们探索了一些新型杂化物的NLO响应，这些杂化物以二维石墨烯纳米片（GNP）取代零维富勒烯部分作为受体单元。通过电场诱导二次谐波产生（EFISH）技术在1907 nm入射波长的CHCl溶液中收集的实验数据，结合耦合微扰（CP）和有限场（FF）密度泛函理论（DFT）计算，表明由于含碳受体部分的π共轭扩展，立方电子项γ（-2ω；ω，ω，0）的贡献大幅增强。
