Growth of millimeter-size single-crystal boron phosphide by eutectic melt at 5.0 GPa and 3000 °C

Liang, Wenjia; Zhang, Lu; Xiang, Xiaojun; Wang, Junpu; Zhang, Liu; Wu, Benxin; Wang, Yipeng; Zeng, Yan; Guan, Shixue; Tang, Qiqi; Peng, Fang

doi:10.1016/j.ssc.2021.114206

Cited by 9 publications

(5 citation statements)

References 34 publications

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“…Recently, Li et al 17 prepared cubic zinc-blend BP nanosheets with a thickness of about 4 nm, and demonstrated that the BP nanosheets were well dispersed in water with a concentration of 0.2 mg/mL. Liang et al 18 synthesized cubic zinc-blend BP single crystals larger than 1mm, and evaluated their excellent thermal stability up to 1200 ºC.…”

Section: Resultsmentioning

confidence: 99%

Theoretical proposal of a revolutionary water-splitting photocatalyst: The monolayer of boron phosphide

Suzuki

2022

Preprint

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Recently, hydrogen generation by water-splitting photocatalysts is attracting attention as a sustainable and clean energy resource. Photocatalytic hydrogen-generation systems are much simpler, cheaper, and easier to scale up than the coupled systems of electrolysis and solar cells, wind-power generation, etc. However, photocatalytic hydrogen generation is currently inefficient. This paper proposes the monolayer of boron phosphide as a stable highly-efficient water-splitting photocatalyst by high-precision density-functional theory calculations using a HSE06 functional with a solvent effect. The monolayer of boron phosphide has a direct allowed energy gap of about 1.4 eV, and functions as a one-step excitation photocatalyst. It absorbs sunlight with wavelengths below about 890 nm (ultraviolet, visible, and near-infrared light) and produces both hydrogen gas and oxygen gas from water at a suitable pH condition. By calculating the overpotentials of hydrogen and oxygen evolution reactions, its photocatalytic effectiveness was confirmed. The monolayers of boron phosphide will realize green hydrogen revolution.

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Section: Resultsmentioning

confidence: 99%

Theoretical proposal of a revolutionary water-splitting photocatalyst: The monolayer of boron phosphide

Suzuki

2022

Preprint

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“…The raw materials of BP were prepared according to Ref. [6]. The XRD patterns and SEM images of raw powders are shown in Fig.…”

Section: Experiments Methods 21 Specimen Preparationmentioning

confidence: 99%

“…Notably, excessive B can weaken the content of BP according to the diffraction peaks and the same phenomenon occurs in WB 4 . [29] In previous experiments, [6] the synthesis temperature is at 800 • C. Therefore, the phase diagram of BP is depicted in Fig. 2(d).…”

Section: Stability In B-rich and P-rich Environmentsmentioning

confidence: 99%

“…With a moderate band gap of 2.01 eV, it stands as an appealing candidate for neutron detection applications and can be doped to manifest n-or p-type conductivity with resistivity spanning from 10 −2 Ω•cm to 10 2 Ω•cm. [5][6][7][8] Furthermore, BP exhibits high transmittance in the infrared spectrum, rendering it a valuable material for optical coatings. [7][8][9] Notably, it emerges as a potential electrode material for water splitting applications, [8][9][10] showcasing its multifaceted utility.…”

Section: Introductionmentioning

confidence: 99%

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Stability and melting behavior of boron phosphide under high pressure

Liang 梁,

Xiang 向,

Li 李

et al. 2024

Chinese Phys. B

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Boron Phosphide (BP) has gained significant research attention due to its unique photoelectric and mechanical properties. In this study, we investigated the stability of BP under high pressure using X-ray diffraction (XRD) and scanning electron microscope (SEM). The phase diagram of BP was explored in both B-rich and P-rich environments, revealing crucial insight into its behavior at 5.0 GPa. Additionally, we measured the melting curve of BP from 8.0 GPa to 15.0 GPa. Our findings indicate the stability of BP under high pressure will be improved within B-rich and P-rich environments. Furthermore, we reported a remarkable observation of melting curve frustration at 10.0 GPa. This study will enhance our understanding of stability of BP under high pressure, shedding light on its potential application in semiconductor, thermal, and light-transmitting devices.

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“…Except for exploring the phase transitions of BP and B 6 P under pressure, their mechanical properties have also been investigated by synthesizing single crystals ,− or polycrystalline bulks. − Recently, Gui et al synthesized a millimeter-sized BP single crystal and proposed a Vickers hardness of 38 GPa under a load of only 0.49 N. However, the small loads usually produce shallow indentations according to strain gradient theory, which will give higher Vickers hardness than the actual values. , On the other hand, as for the BP and B 6 P polycrystalline bulks, the measured Vickers hardness are 28–30 and 35 GPa, , respectively, and the fracture toughness are 1.8 and 3.9 MPa·m 1/2 , respectively. Obviously, the known BP and B 6 P exhibit relatively high hardness.…”

mentioning

confidence: 99%

Novel Boron-rich Phosphides with High Hardness, Large Strain, and Magnetism

Wang

Wei

Hao

et al. 2023

J. Phys. Chem. Lett.

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Boron-rich compounds have attracted much attention due to their interesting structures and excellent properties. Here, we performed an extensive study on the different B–P stoichiometries under pressure by combining a particle swarm optimization method with first-principles calculations. At 1 atm, BP and B6P are thermodynamically stable, while other stoichiometries are metastable. Under pressure, BP and B6P remain stable relative to constituent pure solids up to 80 GPa, while other stoichiometries become unstable at relatively low pressures. A new Cmca B6P is predicted with the lowest energy at 1 atm and shows higher shear strain than the R3̅m structure, which is known to be more resistant to brittle fracture than B4C. Moreover, the predicted Pm B8P is a magnetic semiconductor with a magnetic moment of 1 μB. All these boron-rich phosphides are hard materials. The present results enrich the B–P phase diagram and promote extensive research on their excellent properties.

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Growth of millimeter-size single-crystal boron phosphide by eutectic melt at 5.0 GPa and 3000 °C

Cited by 9 publications

References 34 publications

Theoretical proposal of a revolutionary water-splitting photocatalyst: The monolayer of boron phosphide

Theoretical proposal of a revolutionary water-splitting photocatalyst: The monolayer of boron phosphide

Stability and melting behavior of boron phosphide under high pressure

Novel Boron-rich Phosphides with High Hardness, Large Strain, and Magnetism

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