Partial substitution with a significant effect: coexistence of a wide band gap and large birefringence in the oxychalcogenide AEGe<sub>2</sub>O<sub>4</sub>Se (AE = Sr and Ba)

Ran, Mao-Yin; Zhou, Sheng-Hua; Wei, Wen-Bo; Wang, A-Yang; Wu, Xin-Tao; Lin, Hua; Zhu, Qi-Long

doi:10.1039/d3qi02509h

Inorg. Chem. Front.

2024

DOI: 10.1039/d3qi02509h

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Partial substitution with a significant effect: coexistence of a wide band gap and large birefringence in the oxychalcogenide AEGe₂O₄Se (AE = Sr and Ba)

Mao-Yin Ran,

Sheng-Hua Zhou,

Wen-Bo Wei

et al.

Abstract: Many efforts have been devoted to the discovery of novel birefringent crystals that display considerable birefringence (Δn) in the infrared (IR) region. However, the simultaneous achievement of a wide energy...

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Cited by 6 publications

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A Giant Optically Anisotropic Phosphate Driven by Mixed Valence Mercury Units

Li,

Hu,

Mao

et al. 2024

Laser & Photonics Reviews

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Phosphate crystals are known for their low birefringence, a result of the symmetrical tetrahedral structure of PO4 groups. Attempts to increase their birefringence have traditionally involved the incorporation of highly anisotropic ions and groups. Yet, the majority of the modified phospates still exhibit a birefringence value below 0.1, due to the counteracting effects of anisotropic elements within the tetrahedral coordination. The present study has for the first time discovered a novel birefringence‐active HgI2HgIIO9 unit and successfully constructed a highly anisotropic layered structure, which ingeniously prevents the mutual cancellation of anisotropic effects. This synthesis of HgI2HgII(Te2O4)2(HPO4)2 confirms the effectiveness of this strategy, yielding a birefringence of 0.444 at 546 nm, which outperforms 99% of phosphate crystals and surpasses that of commercial counterparts like YVO4 (0.209@1064 nm) and CaCO3 (0.175@533 nm). Structural analysis and PAWED calculations indicate that the significant birefringence is attributed to the synergistic interaction between the HgI2HgIIO9 unit (23.76%), HPO4 tetrahaedron (24.24%) and TeO4 group (51.99%). This breakthrough paves the way for phosphates to meet the demands of modern technological advancements, expanding their potential applications in the field of anisotropic optics.

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A Giant Optically Anisotropic Phosphate Driven by Mixed Valence Mercury Units

Li,

Hu,

Mao

et al. 2024

Laser & Photonics Reviews

View full text Add to dashboard Cite

show abstract

From [Ba3S][GeS₄] to [Ba₃CO₃][MS₄] (M = Ge, Sn): Enhancing optical anisotropy in IR birefringent crystals via functional group implantation

Shi,

Zhou,

et al. 2024

Chinese Journal of Structural Chemistry

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Structural and optoelectronic studies of BiCuOS semiconductor: A potential photoconverter

Meenu,

Shyam,

Aswin

et al. 2024

Materials Science and Engineering: B

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Partial substitution with a significant effect: coexistence of a wide band gap and large birefringence in the oxychalcogenide AEGe₂O₄Se (AE = Sr and Ba)

Abstract: Many efforts have been devoted to the discovery of novel birefringent crystals that display considerable birefringence (Δn) in the infrared (IR) region. However, the simultaneous achievement of a wide energy...

Cited by 6 publications

References 79 publications

A Giant Optically Anisotropic Phosphate Driven by Mixed Valence Mercury Units

A Giant Optically Anisotropic Phosphate Driven by Mixed Valence Mercury Units

From [Ba3S][GeS₄] to [Ba₃CO₃][MS₄] (M = Ge, Sn): Enhancing optical anisotropy in IR birefringent crystals via functional group implantation

Structural and optoelectronic studies of BiCuOS semiconductor: A potential photoconverter

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Partial substitution with a significant effect: coexistence of a wide band gap and large birefringence in the oxychalcogenide AEGe2O4Se (AE = Sr and Ba)

Abstract: Many efforts have been devoted to the discovery of novel birefringent crystals that display considerable birefringence (Δn) in the infrared (IR) region. However, the simultaneous achievement of a wide energy...

Cited by 6 publications

References 79 publications

A Giant Optically Anisotropic Phosphate Driven by Mixed Valence Mercury Units

A Giant Optically Anisotropic Phosphate Driven by Mixed Valence Mercury Units

From [Ba3S][GeS₄] to [Ba₃CO₃][MS₄] (M = Ge, Sn): Enhancing optical anisotropy in IR birefringent crystals via functional group implantation

Structural and optoelectronic studies of BiCuOS semiconductor: A potential photoconverter

Contact Info

Product

Resources

About

Partial substitution with a significant effect: coexistence of a wide band gap and large birefringence in the oxychalcogenide AEGe₂O₄Se (AE = Sr and Ba)