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R. V. DODDAMANI1, P. S. RACHIPUDI1, D. D. ACHARI1, M. Y. KARIDURAGANAVAR1,*
- Department of Chemistry, Karnatak University, Dharwad-580 003, India
Using a green chemistry approach, different nonlinear optical (NLO) responsive chromophores were synthesized with indane-1,3-dione, imidazolidine-2,4-dione, pyrimidine-2,4,6(1H,3H,5H)-trione and 3-phenyl-2-isoxazolin-5-one as acceptors. The polarizability, hyperpolarizability, dipole moment and energy band gap between HOMO and LUMO of the optimized chromophores were calculated using DFT approach. With these chromophores, a series of graphene-based hybrid materials were prepared through covalent functionalization of chromophores onto the modified graphene oxide. The molecular structural characterizations of the chromophores and graphene-based hybrid materials were performed using FTIR, FT-Raman spectroscopy and 1H NMR. Thermal behavior of the hybrid materials was investigated using TGA. The SHG coefficients (d33) of the films were found to be in the range of 60.21 - 99.24 pm/V. From the results, the hybrid materials could be potential candidates for nonlinear optical devices..
NLO chromophores, Graphitic oxide, Temporal stability, SHG coefficients, DFT.
Submitted at: Sept. 19, 2022
Accepted at: Oct. 6, 2023
R. V. DODDAMANI, P. S. RACHIPUDI, D. D. ACHARI, M. Y. KARIDURAGANAVAR, Computational study of NLO responsive chromophores synthesized by green chemistry approach and second-order coefficients of graphitic oxide-chromophore hybrids, Journal of Optoelectronics and Advanced Materials Vol. 25, Iss. 9-10, pp. 469-480 (2023)
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