“…Inorganic functional crystal materials have been widely used in the fields of sound, light, heat, electricity, magnetism, force, etc., which have gained extensive attention from scientists. [1][2][3][4][5][6][7] Among them, nonlinear optical (NLO) crystals and birefringent crystals are the "chips" of optoelectronic industry, which play a crucial role in laser frequency conversion and polarized light modulation, and have been widely applied to information, industry, medical, military, and many other aspects. [8][9][10][11][12][13][14][15] Up to now, a series of NLO materials have been synthesized by traditional synthesis methods including high-temperature solid-state method, hydrothermal method, aqueous solution method, and so on.…”