Characteristics of structural defects of Cd0.9Zn0.1Te crystals grown by vertical zone melting
Source abstract
Abstract
Large-size Cd 0.9Zn 0.1Te crystals were grown using high-pressure vertical zone melting. It has been found that Te inclusions ranging 70–150 μm with density 3.5·10 2 cm −2 are formed during crystal growth under conditions specified in this work. Optical spectra display the transmission of the CZT crystals in near- and medium infrared range, which is close to theoretical value and does not degrade despite presence of Te inclusions. Based on the obtained data on sizes and distribution of the inclusions, diffusion coefficient of tellurium in CZT was estimated for Te particles entrapped by growing interface. The calculated value (1.22–3.2)·10 −8 cm 2/s most probably indicates vacancy mechanism of diffusion. Density of in-grown dislocations revealed by chemical etching is 4·10 4 cm −2. Branched 3D dendrites are found in CZT crystals.
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Research context
OpenAlex topics: Advanced Semiconductor Detectors and Materials · Semiconductor Quantum Structures and Devices · Chalcogenide Semiconductor Thin Films
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (48)
Show source-provided references
1. In book: CdTe and related compounds, Ed. by R. Triboulet, Elsevier. 2010. DOI: 〈10.1016/B978-0-08-046409-1.00001-0〉.
2. In book: Single crystals for electronic materials, Ed. by R. Fornari, Woodhead Publishing. 2018. 594 p.
3. Davydov L., Fochuk P., Zakharchenko A., Kutny V., Rybka A., Kovalenko N., Sulima S., Terzin I., Gerasimenko A., Kosmyna M., Sklyarchuk V., Kopach O., Panchuk O., Pudov A., Bolotnikov A.E., James R.B. Improving and Characterizing of (Cd,Zn)Te Crystals for Detecting Gamma-Ray Radiation 62 № 4 (2015) 1779-1784. 〈https://www.doi.org/10.1109/TNS.2015.2448939〉.10.1109/TNS.2015.2448939 ↗
4. Large Volume Imaging Arrays for Gamma-Ray Spectroscopy10.1007/s11664-999-0085-z ↗
5. Sordo S.D., Abbene L., Caroli E., Mancini A.M., Zappettini A., Ubertini P. Progress in the Development of CdTe and CdZnTe Semiconductor Radiation Detectors for Astrophysical and Medical Applications, 9 № 5 (2009) 3491-3526. 〈https://www.doi.org/10.3390/s90503491〉.10.3390/s90503491 ↗
6. New perspectives in gamma-ray imaging with CdZnTe/CdTe
7. Improvement of the quality of indium-doped CdZnTe single crystals by post-growth annealing for radiation detectors10.1039/c0ce00958j ↗
8. Kolesnikov N.N., James R.B., Berzigiyarova N.S., Kulakov M.P. in: X-ray and Gamma-ray Detectors and Applications IV, ed. y R. James, L. Frank, A. Burger, E. Westbrook, R. Dust, Proceeding of SPIE. 4784 (2002) 93-104.10.1117/12.450814 ↗
9. Studies of phase segregation in Cd1-xZnxTe using surface photovoltage spectroscopy10.1063/1.1493230 ↗
10. Effects of Te Inclusions on the Performance of CdZnTe Radiation Detectors10.1109/TNS.2008.2003355 ↗
11. Improving and Characterizing (Cd,Zn)Te Crystals for Detecting Gamma-Ray Radiation10.1109/TNS.2015.2448939 ↗
12. Analysis of the accelerated crucible rotation technique applied to the gradient freeze growth of cadmium zinc telluride10.1016/j.jcrysgro.2016.09.068 ↗
13. Size and distribution of Te inclusions in detector-grade CdZnTe ingots10.1016/S1002-0071(12)60027-6 ↗
14. Large Volume Imaging Arrays for Gamma-Ray Spectroscop,y J. of Electronic Mater
15. Cd1−xZnxTe crystal growth controlled by Cd/Zn partial pressures10.1088/0268-1242/17/10/101 ↗
16. New perspectives in gamma-ray imaging with CdZnTe/CdTe
17. Characterization of large cadmium zinc telluride crystals grown by traveling heater method
18. Senchenkov A.S., Fiederle M., Kolesnikov N.N. CZT crystal growth by THM in microgravity – preparation of experiments for Foton-M4 mission, Proceedings of International Aeronautic Congress. 29 Sept.-3 Oct. 2014. V. 14-A2.4.7. P. 549-559.
19. Growth of CdZnTe crystals by the traveling heater method10.1016/j.jcrysgro.2012.11.047 ↗
20. Characterization of Traveling Heater Method (THM) Grown Cd0:9Zn0:1Te Crystals10.1109/TNS.2007.902369 ↗
21. Characterization of Structural Defects in (Cd,Zn)Te Crystals Grown by the Traveling Heater Method
22. Analysis of Te Inclusion Striations in (Cd,Zn)Te Crystals Grown by Traveling Heater Method
23. Crystal growth of Cd1-xZnxTe by the traveling heater method in microgravity on board of Foton-M4 spacecraft10.1016/j.jcrysgro.2016.08.063 ↗
24. Characterization of detector-grade CdZnTe crystals grown by traveling heater method (THM)10.1016/j.jcrysgro.2009.11.007 ↗
25. Concentration of extended defects in CdZnTe single crystals: Effects of cooling rate after growth10.1016/j.jcrysgro.2012.06.024 ↗
26. Correlations Between Crystal Defects and Performance of CdZnTe Detectors10.1109/TNS.2011.2160283 ↗
27. Xu L., A.E, Hossain A., Kim K.-H., Gul R., Yang G., Camarda G.S., Marchini L., Cui Y., James R.B., Xu Y., Wang T., Jie W. Extended defects in as-grown CdZnTe, Optics and Photonics Conference. 2010. August 1-5. San Diego. California. Preprint Brookhaven National Laboratory, August 2010. 10 p.10.1117/12.860731 ↗
28. Axial distribution of deep-level defects in as-grown CdZnTe: In ingots and their effects on the material's electrical properties10.1016/j.jcrysgro.2014.09.039 ↗
29. Purification of CdZnTe by electromigration10.1063/1.4917460 ↗
30. , Te Inclusions in CZT Detectors: New Method for Correcting their Adverse Effects, Brookhaven National
31. Two-Step Annealing to Remove Te Secondary-Phase Defects in CdZnTe While Preserving the High Electrical Resistivity
32. Detector performance and defect densities in CdZnTe after two-step annealing10.1016/j.nima.2019.01.064 ↗
33. Observation, morphology evolution and elimination of Te inclusions in CdZnTe:In single crystals10.1016/j.jcrysgro.2013.07.007 ↗
34. Bolotnikov A. Growth of CZT using Additionally Zone-Refined Raw Materials, SPIE Optics & Photonics Conference San Diego, CA. 2012, August 12-16.
35. The surface leakage current of CdZnTe wafers10.1016/j.apsusc.2006.07.060 ↗
36. The origins of twinning in CdTe, J10.1007/BF02650863 ↗
37. Cleavage surfaces in twinned CdTe crystals10.1007/BF00722151 ↗
38. Durose K., Structural defects in CdTe, Ph.D. Thesis, Durham theses, Durham University 1986. E-Theses Online: 〈http://etheses.dur.ac.uk/7020/〉.
39. A study of dendrites in quenched mercury-cadmium telluride10.1007/BF02659835 ↗
40. Experimental study of the ternary system Cd-Zn-Te10.1016/S0925-8388(97)00179-5 ↗
41. Direct evidence for the mechanism of the phase transition wurtzite-sphalerite10.1002/pssb.19660140235 ↗
42. Phase transition between sphalerite and wurtzite in ZnS optical ceramic materials10.1016/j.jeurceramsoc.2019.12.045 ↗
43. Diffusion –controlled cluster formation in 2-6 dimensional space10.1103/PhysRevA.27.1495 ↗
44. Uber die von der molekularkinetischen Theorie der Warme geforderte Bewegung von in ruhenden Flussigkeiten suspendierten Teilchen10.1002/andp.19053220806 ↗
45. Manning · 1968 · 257 p
46. Empirical correlation between the Arrhenius' parameters of impurities diffusion coefficients in CdTe crystals10.1007/s11669-015-0364-8 ↗
47. Numerical modeling of cellular/dendritic array growth: spacing and structure predictions10.1007/BF02648950 ↗
48. Effect of traveling magnetic field on cadmium zinc telluride growth by the traveling heater method