Rapid growth kinetics and microstructure modulation of intermetallic compounds within containerlessly solidifying Mo-Co refractory alloys

Sha, S.; Wang, W.L.; Chang, Jiang; Wu, Yulun; Xu, S.S.; Wei, B.

doi:10.1016/j.intermet.2020.106886

Cited by 4 publications

(1 citation statement)

References 29 publications

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“…The non‐equilibrium solidification process could be described this result. [ 24 ] First, with the decrease of temperature, the primary Ga 2 Se 3 phase precipitates from the liquid. Then, the primary Ga 2 Se 3 phase react with the liquid phase to generate the PbGa 2 Se 4 phase by the diffusion of Pb element into Primary Ga 2 Se 3 .…”

Section: Resultsmentioning

confidence: 99%

Refined Synthesis and Single Crystal Growth of PbGa₂Se₄by Chemical Vapor Transport Method for Photodetection

Ji,

Xiao,

Yin

et al. 2024

Cryst. Res. Technol.

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Ternary chalcogenide PbGa2Se4 with high resistivity, photosensitivity, and excellent nonlinear properties, exhibits a potential application in optoelectronic and nonlinear optical devices. However, the preparation of large‐sized pure PbGa2Se4 crystals is challenging due to the presence of peritectic reaction and a narrow homogeneity region. Here, a “quenching‐annealing” method (quenching at 850 °C in ice water, and then annealing at 650 °C for 250 h by reheating) is developed to eliminate the PbSe second phase during the synthesis. Subsequently, the PbGa2Se4 single crystals are successfully grown using chemical vapor transport (CVT) with the I2 as the transport agent. The resulting crystal exhibits the crystal structure belonging to Fddd space group with the lattice parameters of a = 12.7192 Å, b = 21.2831 Å, and c = 21.5226 Å. Additionally, it possesses a wide bandgap (≈2.26 eV), high resistivity (6.59 × 1012 Ω·cm), and defect density calculated via space charge limited current measurement (SCLC) as 2.46 × 1011 cm−3. Photodetectors based on these as‐grown crystals demonstrate exceptional photosensitivity along with a high detectivity (3.2 × 108 Jones).

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Section: Resultsmentioning

confidence: 99%

Refined Synthesis and Single Crystal Growth of PbGa₂Se₄by Chemical Vapor Transport Method for Photodetection

Ji,

Xiao,

Yin

et al. 2024

Cryst. Res. Technol.

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Peritectic phase formation kinetics of directionally solidifying Sn-Cu alloys within a broad growth rate regime

et al. 2021

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Metastable coupled growth kinetics between primary and peritectic intermetallic compounds within the liquid Mo-37 wt% Co refractory alloy

Sha

Chang

et al. 2022

Journal of Alloys and Compounds

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Rapid growth kinetics and microstructure modulation of intermetallic compounds within containerlessly solidifying Mo-Co refractory alloys

Cited by 4 publications

References 29 publications

Refined Synthesis and Single Crystal Growth of PbGa₂Se₄by Chemical Vapor Transport Method for Photodetection

Refined Synthesis and Single Crystal Growth of PbGa₂Se₄by Chemical Vapor Transport Method for Photodetection

Peritectic phase formation kinetics of directionally solidifying Sn-Cu alloys within a broad growth rate regime

Metastable coupled growth kinetics between primary and peritectic intermetallic compounds within the liquid Mo-37 wt% Co refractory alloy

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Rapid growth kinetics and microstructure modulation of intermetallic compounds within containerlessly solidifying Mo-Co refractory alloys

Cited by 4 publications

References 29 publications

Refined Synthesis and Single Crystal Growth of PbGa2Se4by Chemical Vapor Transport Method for Photodetection

Refined Synthesis and Single Crystal Growth of PbGa2Se4by Chemical Vapor Transport Method for Photodetection

Peritectic phase formation kinetics of directionally solidifying Sn-Cu alloys within a broad growth rate regime

Metastable coupled growth kinetics between primary and peritectic intermetallic compounds within the liquid Mo-37 wt% Co refractory alloy

Contact Info

Product

Resources

About

Refined Synthesis and Single Crystal Growth of PbGa₂Se₄by Chemical Vapor Transport Method for Photodetection

Refined Synthesis and Single Crystal Growth of PbGa₂Se₄by Chemical Vapor Transport Method for Photodetection