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The study aims to produce and characterize molybdenum-doped SnO2 nanoparticles for photonic applications.

February 6, 2026Open Access

Synthesis of Mo-doped SnO

Key Points

The study aims to produce and characterize molybdenum-doped SnO2 nanoparticles for photonic applications.
Synthesis of Sn1-xMoxO2 nanoparticles using co-precipitation at room temperature.
Characterization via X-ray diffraction (DRX), FTIR, and UV-Visible spectroscopy.
Calculation of grain size and micro-deformation using Williamson-Hall and Debye-Scherrer formulas.
Dopants maintain a tetragonal rutile structure with (110) orientation in SnO2.
Grain size ranges from approximately 8nm to 10nm for doped samples.
FTIR confirms the presence of the O-Sn-O bond at 632 cm-1.

Abstract

In this work, Sn1-xMoxO2 (x = 0.00, 0.01, 0.02, 0.04) nanoparticles powders were produced successfully at room temperature using the co-precipitation method. These types of nanoparticles are widely used as a dopant for photo anodes due to its thermal stability and unique electronic configuration, it exhibits different oxidation states. The structural and optical characterization of the nano-powders were investigated by DRX, FTIR, and UV-Visible spectroscopy techniques. The DRX measurements showed that all samples had a tetragonal rutile structure of polycrystalline SnO2 and the (110) preferential orientation of the undoped sample remains with 1%, 2% and 4% Mo doped SnO2 samples. Also, the grain size and the micro-deformation are calculated by Williamson-Hall and Debye-Scherrer formulas, the grain size is approximately between 8nm and 10nm. The presence of a band at 632 cm-1 in the FTIR spectrum confirms the existence of the O-Sn-O bond.

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