Defect Chemistry and Doping of Ultrawide Band Gap (III)BO<sub>3</sub> Compounds

Garrity, Emily M.; Egbo, Kingsley; Lee, Cheng-Wei; Zakutayev, Andriy; Stevanović, Vladan

doi:10.1021/acs.chemmater.3c01754

Chem. Mater.

2023

DOI: 10.1021/acs.chemmater.3c01754

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Defect Chemistry and Doping of Ultrawide Band Gap (III)BO₃ Compounds

Emily M. Garrity,

Kingsley Egbo,

Cheng-Wei Lee

et al.

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2024

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References 53 publications

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Unraveling Superior Elasticity and Controlled Thermal Expansion in Trigonal MBO₃ (M=Al, Ga) with Isolated [BO₃] Group: A Theoretical Perspective

Yang,

Tang,

Xia

et al. 2024

Eur J Inorg Chem

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A comprehensive theoretical investigation employing density functional theory explores the electronic structure, temperature‐dependent elasticity, thermodynamic properties, and chemical bonding of trigonal MBO3 (M = Al, Ga) with isolated [BO3] groups. The results uncover MBO3 (M = Al, Ga) as indirect semiconductors with superior mechanical stability, characterized by greater resistance to volume compression over shear deformation. Their elasticity exhibits relatively weak temperature dependence, suggesting excellent thermal stability. Thermodynamic analysis predicts that GaBO3 has a higher thermal expansion coefficient than AlBO3, approximately 2.1 × 10‐5 K‐1 and 1.8 × 10‐5 K‐1 at 300 K, respectively. Significantly, the overall thermal expansion coefficients of GaBO3 and AlBO3 are lower compared to other borate materials containing isolated [BO3] groups. Chemical bonding insights reveal that GaBO3's larger thermal expansion is attributed to its larger atomic displacement parameters and weaker Ga‐O bond strength. This research positions MBO3 (M = Al, Ga) as prime candidates for optical device applications due to their well‐characterized elasticity and controlled thermal expansion.

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Unraveling Superior Elasticity and Controlled Thermal Expansion in Trigonal MBO₃ (M=Al, Ga) with Isolated [BO₃] Group: A Theoretical Perspective

Yang,

Tang,

Xia

et al. 2024

Eur J Inorg Chem

View full text Add to dashboard Cite

show abstract

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Defect Chemistry and Doping of Ultrawide Band Gap (III)BO₃ Compounds

Cited by 1 publication

References 53 publications

Unraveling Superior Elasticity and Controlled Thermal Expansion in Trigonal MBO₃ (M=Al, Ga) with Isolated [BO₃] Group: A Theoretical Perspective

Unraveling Superior Elasticity and Controlled Thermal Expansion in Trigonal MBO₃ (M=Al, Ga) with Isolated [BO₃] Group: A Theoretical Perspective

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Defect Chemistry and Doping of Ultrawide Band Gap (III)BO3 Compounds

Cited by 1 publication

References 53 publications

Unraveling Superior Elasticity and Controlled Thermal Expansion in Trigonal MBO3 (M=Al, Ga) with Isolated [BO3] Group: A Theoretical Perspective

Unraveling Superior Elasticity and Controlled Thermal Expansion in Trigonal MBO3 (M=Al, Ga) with Isolated [BO3] Group: A Theoretical Perspective

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Product

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Defect Chemistry and Doping of Ultrawide Band Gap (III)BO₃ Compounds

Unraveling Superior Elasticity and Controlled Thermal Expansion in Trigonal MBO₃ (M=Al, Ga) with Isolated [BO₃] Group: A Theoretical Perspective

Unraveling Superior Elasticity and Controlled Thermal Expansion in Trigonal MBO₃ (M=Al, Ga) with Isolated [BO₃] Group: A Theoretical Perspective