Heterometallic Ge–O–Sn-Bridged Oxychalcogenides Sr3GeSnO4Q3 (Q = S, Se) with Wide Band Gaps and Moderate Infrared Nonlinear Optical Responses

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Key Points

This research aims to explore the properties of new heterometallic oxychalcogenides for potential applications in nonlinear optics.
Examined the structural and optical characteristics of Sr3GeSnO4Q3 (Q = S, Se)
Assessed the infrared nonlinear optical responses through various tests
Compared findings to previous models of dimer-building blocks in chalcogenides.
Wide band gaps were confirmed in Sr3GeSnO4S3 and Sr3GeSnO4Se3, indicating potential for optical applications.
Moderate infrared nonlinear optical responses were observed, showcasing promising functional properties.
These results suggest the viability of these compounds in developing advanced optical materials.

Investigates infrared nonlinear optical responses in heterometallic compounds, suggesting new material applications.

] dimers can serve as effective basic building blocks, providing a useful approach for exploring new functional oxychalcogenides.

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Hong et al. (2026) studied this question.

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