کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1789606 1524384 2016 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of the pulling rate on the properties of ZnGeP2 crystal grown by vertical Bridgman method
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Influence of the pulling rate on the properties of ZnGeP2 crystal grown by vertical Bridgman method
چکیده انگلیسی


• Large ZnGeP2 single crystals were grown at two different rates by VB method.
• The quality of the different positions of each single crystal was investigated.
• The higher pulling rate only degrades the quality of the onset of single crystal.

Zinc–germanium diphosphide (ZGP) crystals (15 mm in diameter and 65 mm in length) were successfully grown by the modified vertical Bridgman method on seeds at different pulling rates (0.5 mm/h and 0.75 mm/h) in order to study the defect generation during crystal growth. At the different positions (the onset, middle and end) in single crystals, their properties of ZGP crystals were investigated by X-ray diffraction, etching technique and optical transmission spectra. The results indicate that the increase in the pulling rate deteriorates the crystal quality at the onset part of the single crystals. The etch pit density (EPD) and the full width at half maximum (FWHM) of the X-ray rocking curves increase, while the optical transmittance decreases with increasing pulling rate. However, the increase in the pulling rate hardly influences the crystal quality at the middle and end part of the single crystals.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Crystal Growth - Volume 445, 1 July 2016, Pages 37–41
نویسندگان
, ,