Advancements in Iso-Diameter seeded growth of CdZnTe crystals: A numerical modeling approach and applications in liquid phase Epitaxy

Xu, Chao; Zhang, Juan; Zhou, Changhe; Li, Shangshu; Sun, Ruiyun

doi:10.1016/j.jcrysgro.2024.127670

Journal of Crystal Growth

2024

DOI: 10.1016/j.jcrysgro.2024.127670

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Advancements in Iso-Diameter seeded growth of CdZnTe crystals: A numerical modeling approach and applications in liquid phase Epitaxy

Chao Xu,

Juan Zhang,

Changhe Zhou

et al.

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Considerations for Differences in Melt Growth Kinetics Between II–VI and III–V Compound Crystals

Rudolph

2024

Crystals

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The difference in the crystallization kinetics during growth from the melt between II–VIs (CdTe, Cd1−xZnxTe, ZnSe, and ZnTe) and III–Vs (GaAs and InP) is discussed. At the melt growth of II–VI crystals, the most important difference is the lack of controllability of seeding and achievement of a desired growth orientation. A pronounced tendency of self-orientation toward <111>, <110>, and sometimes <112> and <122>, but almost never toward <100> direction, has been observed regardless of whether a seed has been used or not. The main reason proves to be the tetrahedral coordination due to the high binding ratio of ionicity remaining in the II–VI melts but not occurring in III–Vs. As a result, the general effect of pre-ordering into density layers, forced by the solid surface, is in the II–VI liquids superimposed by a {111} self-orientation via tetrahedral in-plane alignment. Fitting growth kinetics seem to only be possible when this melt configuration conforms to the crystal structure, like the {111} but hardly the {100}. Otherwise, the liquid self-orientation determines the continuing crystal orientation. Additionally, an <100>-oriented seed abruptly changed into an <122> direction via a congruent twin plane. Although such considerations still need verifying atomistic simulations, they are helpful to optimize the growth methodology even for larger crystal diameters.

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Considerations for Differences in Melt Growth Kinetics Between II–VI and III–V Compound Crystals

Rudolph

2024

Crystals

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Advancements in Iso-Diameter seeded growth of CdZnTe crystals: A numerical modeling approach and applications in liquid phase Epitaxy

Cited by 1 publication

References 26 publications

Considerations for Differences in Melt Growth Kinetics Between II–VI and III–V Compound Crystals

Considerations for Differences in Melt Growth Kinetics Between II–VI and III–V Compound Crystals

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