X-ray Diffraction Investigation of Thermoelastic Properties of HgCdTe/CdZnTe Structures
| العنوان: | X-ray Diffraction Investigation of Thermoelastic Properties of HgCdTe/CdZnTe Structures |
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| المؤلفون: | D. Brellier, Patrice Gergaud, X. Baudry, B. Amstatt, A. Jonchère, P. Ballet |
| المصدر: | Journal of Electronic Materials. 41:2694-2699 |
| بيانات النشر: | Springer Science and Business Media LLC, 2012. |
| سنة النشر: | 2012 |
| مصطلحات موضوعية: | Diffraction, Materials science, Condensed matter physics, business.industry, Astrophysics::Instrumentation and Methods for Astrophysics, chemistry.chemical_element, Germanium, Temperature cycling, Condensed Matter Physics, Thermal expansion, Cadmium telluride photovoltaics, Electronic, Optical and Magnetic Materials, Condensed Matter::Materials Science, Thermoelastic damping, Lattice constant, chemistry, X-ray crystallography, Materials Chemistry, Optoelectronics, Electrical and Electronic Engineering, business |
| الوصف: | We present high-resolution diffraction measurements of the lattice parameters of HgCdTe and CdZnTe. These measurements were performed at various temperatures ranging from room temperature up to 300°C, enabling the determination of the coefficients of thermal expansion (CTE) and the evolution of the HgCdTe film stress during the thermal cycling. It is found that the CTE is linear with the zinc fraction for CdZnTe, while it can be described by a parabolic variation as a function of the cadmium fraction for HgCdTe. The temperature evolution of the stress is found to be dictated by the CTE difference between the substrate and epilayer up to a temperature of 150°C, for which the stress is partially relaxed. For the sample grown on CdTe/Ge, the HgCdTe lattice is found to be fully relaxed at room temperature and the thermoelastic evolution of the stress of HgCdTe is imposed by the coefficient of thermal expansion of the germanium substrate. |
| تدمد: | 1543-186X 0361-5235 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::33ded5f400cb1e8e3bf821c489e0087c https://doi.org/10.1007/s11664-012-2240-1 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........33ded5f400cb1e8e3bf821c489e0087c |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 1543186X 03615235 |
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