<trans-title xml:lang="en">Macroscopic Defects of Large Bi<sub>12</sub>GeO<sub>20</sub> Crystals Grown Using Vertical Bridgman Method </trans-title>

Xuejun QI; Jian ZHANG; Lei CHEN; Shaohan WANG; Xiang LI; Yong DU; Junfeng CHEN

doi:10.15541/jim20220642

Journal of Inorganic Materials, Volume. 38, Issue 3, 280(2023)

Macroscopic Defects of Large Bi₁₂GeO₂₀ Crystals Grown Using Vertical Bridgman Method

Xuejun QI1... Jian ZHANG1, Lei CHEN1, Shaohan WANG1, Xiang LI1, Yong DU1, and Junfeng CHEN12,* |Show fewer author(s)

Author Affiliations

¹1. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China

²2. Collaborative Innovation Center of IFSA, Shanghai Jiao Tong University, Shanghai 200240, China

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Figures & Tables(10)

1. TG-DSC curves (a) and XRD patterns (b) of Bi₁₂GeO₂₀ crystal

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2. Macroscopic defects in as-grown Bi₁₂GeO₂₀ crystal ingots

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3. Dendritic inclusions in Bi₁₂GeO₂₀ crystal observed by optical microscope(100×)

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4. SEM images (a, c, e) and EDS spectra (b, d, f) of dendritic inclusions in Bi₁₂GeO₂₀ crystals

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5. Elemental mappings of the dendritic inclusions in Bi₁₂GeO₂₀ crystal at the microstructural level by scanning electron microscope (SEM) with energy dispersive X-ray spectrometry (EDS)

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6. Typical photos for the leakage of Pt crucibles (a) and Pt deposition (b) in as-grown crystal boule

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7. Optical morphology of as-grown Bi₁₂GeO₂₀ crystal boule on the tail end

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8. Pictures of as-grown Bi₁₂GeO₂₀ crystal boules with cross-sections of ϕ35 mm (a), and 55 mm×55 mm (b)

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9. Transmittance spectra of Bi₁₂GeO₂₀ crystals grown before and after growth parameters optimization

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Table 1. SEM-EDS composition analysis results of dendritic inclusions in Bi₁₂GeO₂₀crystal (in atomic)
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Table 1. SEM-EDS composition analysis results of dendritic inclusions in Bi₁₂GeO₂₀crystal (in atomic)
Spectrum Pt/% Bi/% Ge/% O/% Bi/Ge
1 6.85 39.57 3.15 50.43 12.56
2 100.0 0 0 0 -
3 88.20 2.08 0 9.72 -
Matrix 0 36.27 3.11 60.62 11.66

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Xuejun QI, Jian ZHANG, Lei CHEN, Shaohan WANG, Xiang LI, Yong DU, Junfeng CHEN. Macroscopic Defects of Large Bi₁₂GeO₂₀ Crystals Grown Using Vertical Bridgman Method [J]. Journal of Inorganic Materials, 2023, 38(3): 280

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Paper Information

Category:

Received: Nov. 1, 2022

Accepted: --

Published Online: Oct. 16, 2023

The Author Email: CHEN Junfeng (jfchen@mail.sic.ac.cn)

DOI:10.15541/jim20220642

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. SEM-EDS composition analysis results of dendritic inclusions in Bi12GeO20 crystal (in atomic)

Table 1. SEM-EDS composition analysis results of dendritic inclusions in Bi12GeO20 crystal (in atomic)

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Table 1. SEM-EDS composition analysis results of dendritic inclusions in Bi₁₂GeO₂₀crystal (in atomic)

Table 1. SEM-EDS composition analysis results of dendritic inclusions in Bi₁₂GeO₂₀crystal (in atomic)