Second-harmonic generation effect enhanced by Li substitution for Na in Li1(LiXNa5−X)Mo9O30

Vuksan, V. Z.; Cheng, Y.; Park, S.-H.; Sturm, E. V.; Gméling, K. und Szentmiklósi, L. (2. August 2024): Second-harmonic generation effect enhanced by Li substitution for Na in Li1(LiXNa5−X)Mo9O30. In: Journal of Solid State Chemistry, Vol. 339, 124920

Abstract

Large single crystals of the solid-solution series Li1(LixNa5-x)Mo9O30 were grown by the Czochralski method by varying the Li substitution for Na. Structure analyses with X-ray single-crystal diffraction data elucidated statistic disorder of Li with Na at three independent Na sites. The resulting Li substitution X = 0, 1.2, and 2.8 could be confirmed by neutron activation analysis. Second-harmonic generation (SHG) light intensities and non-linear optical (NLO) coefficients were determined in three crystallographic main directions by Maker fringe measurements. DFT calculations delivered absolute NLO magnitudes. UV/Vis optical spectra revealed that the transmission rises from X = 0 to X = 2.8. However, the SHG effect is at largest in Li1(Li1.2Na3.8)Mo9O30 (X = 1.2), so far investigated in this study.

• Item Type: Journal article
• Form of publication: Publisher's Version
• Keywords: Second-harmonic generation; Li-Na-molybdates; Structure-related optical properties
• Faculties: Geosciences > Department of Earth and Environmental Sciences > Crystallography and Materials Science
• Subjects: 500 Science > 500 Science; 500 Science > 530 Physics; 500 Science > 550 Earth sciences and geology