Abstract
MnTeMoO6 is an inorganic nonlinear optical material with potential applications in laser frequency conversion, due to its second harmonic generation efficiency. To enhance the properties of MnTeMoO6, an alternative method of Nb-doping with nonequivalent isomorphism has employed. Nb:MnTeMoO6 has been synthesized by solid-state reaction techniques at a Nb-doping ratio of 1–10 mol%. Powder X-ray diffraction, Raman spectra, UV–vis diffuse reflectance spectra and powder second harmonic generation efficiency of Nb:MnTeMoO6 have been investigated. Consequently, the results show that Nb:MnTeMoO6 have been synthesized by the solid-state reaction technique successfully. Nb:MnTeMoO6 with a single crystalline phase has a Nb-doping ratio that is less than or equal to 3 mol%. The band gap energies of Nb:MnTeMoO6 would increase with the Nb-doping. Interestingly, the UV absorption peak of the 2 mol% Nb:MnTeMoO6 resultant exhibits a blue shift. It is noteworthy that 1 mol% Nb:MnTeMoO6 exhibits a significant SHG response of approximately 0.96 pm/Vm (1.23 × MnTeMoO6).
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