# The Effects of ACRT on the Growth of ZnTe Crystal by the Temperature Gradient Solution Growth Technique

^{1}

^{2}

^{3}

^{*}

## Abstract

**:**

## 1. Introduction

## 2. Modeling Approaches

**v**= Ωr

**e**

_{θ}

**e**

_{θ}is a unit vector in the azimuthal direction. Note that v in the current model consists of axial, radial and azimuthal components, which is different from the previous model.

## 3. Results and Discussion

^{3}/s) and the mole fraction C of ZnTe to represent the flow and concentration fields in the solution, respectively.

#### 3.1. Computational Strategy

#### 3.2. The Flow and Concentration Fields

#### 3.3. Analysis on the Constitutional Supercooling

#### 3.4. Effects of ACRT on the Growth Interface Morphology

## 4. Conclusions

## Acknowledgments

## Author Contributions

## Conflicts of Interest

## References

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**Figure 1.**Schematic diagram of the growth system. (

**a**) The ampoule and the charge. Regions A, C and L represent the ampoule, the crystal, and the solution, respectively. The inner diameter, outer diameter, and the length of the ampoule are 30 mm, 33 mm, and 60 mm, respectively; (

**b**) The temperature boundary condition. z

_{i}and T

_{fp}represent the position of the growth interface and the growth temperature, respectively.

**Figure 2.**Flow (Ψ (mm

^{3}/s)) and concentration (C) fields at t = 20 h without the ACRT. The left side represents the contours of the stream function in the solution region, where the flow direction is indicated by the arrows, and the right side represents the concentration field of ZnTe. The positive and negative values of Ψ represent the counterclockwise and clockwise flows, respectively.

**Figure 3.**ACRT sequences. (

**a**) Sequence 1, E is 6 s after D; (

**b**) Sequence 2, D is 18 s after C; (

**c**) Sequence 3, B is 3 s after the beginning of the constant rotation stage, D is 15 s after C.

**Figure 4.**Flow (Ψ (mm

^{3}/s)) and concentration (C) fields in the solution during the first half of the 5th period of ACRT Sequence 1. (

**a**–

**e**) Results at 5A–5E, respectively.

**Figure 5.**Flow (Ψ (mm

^{3}/s)) and concentration (C) fields in the solution during the first half of the 5th period of ACRT Sequence 2. (

**a**–

**e**) Results at 5A–5E, respectively.

**Figure 6.**Flow (Ψ (mm

^{3}/s)) and concentration (C) fields in the solution during the first half of the 5th period of ACRT Sequence 3. (

**a**–

**e**) Results at 5A–5E, respectively.

**Figure 7.**The actual (the blue solid curves) and the saturation (the red dashed curves) temperatures of the solution in front of Points O and P on the growth interface. Results for the solution in front of Point O at 5E of ACRT Sequences 1, 2, and 3 are shown in (

**a**), (

**b**), and (

**c**), respectively. Results for the solution in front of Point P at 5C of ACRT Sequences 1, 2, and 3 are shown in (

**d**), (

**e**), and (

**f**), respectively.

**Figure 8.**The growth interface morphology at about t = 26.2 h in the cases of no ACRT and of Sequences 1, 2, and 3.

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**MDPI and ACS Style**

Yin, L.; Jie, W.; Wang, T.; Zhou, B.; Yang, F.; Nan, R.
The Effects of ACRT on the Growth of ZnTe Crystal by the Temperature Gradient Solution Growth Technique. *Crystals* **2017**, *7*, 82.
https://doi.org/10.3390/cryst7030082

**AMA Style**

Yin L, Jie W, Wang T, Zhou B, Yang F, Nan R.
The Effects of ACRT on the Growth of ZnTe Crystal by the Temperature Gradient Solution Growth Technique. *Crystals*. 2017; 7(3):82.
https://doi.org/10.3390/cryst7030082

**Chicago/Turabian Style**

Yin, Liying, Wanqi Jie, Tao Wang, Boru Zhou, Fan Yang, and Ruihua Nan.
2017. "The Effects of ACRT on the Growth of ZnTe Crystal by the Temperature Gradient Solution Growth Technique" *Crystals* 7, no. 3: 82.
https://doi.org/10.3390/cryst7030082