کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1789063 1023490 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Catalyst-free synthesis of GeO2 nanowires using the thermal heating of Ge powders
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Catalyst-free synthesis of GeO2 nanowires using the thermal heating of Ge powders
چکیده انگلیسی

Germanium dioxide (GeO2) nanowires have been synthesized by means of the simple evaporation of solid Ge powders, without using metal catalysts. The nanowires, with a diameter of about 90–200 nm, were characterized using scanning electron microscopy (SEM), X-ray diffractometry (XRD), and transmission electron microscopy (TEM). The obtained GeO2 nanowires were crystalline with a hexagonal structure. The growth mechanism was discussed with respect to the vapor–solid process. The photoluminescence measurement revealed two emission peaks at about 2.45 eV and 2.91 eV at room temperature, opening up a route to potential applications in future optoelectronic nanodevices. Raman measurement of as-synthesized GeO2 nanowires was made at room temperature.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Current Applied Physics - Volume 9, Issue 6, November 2009, Pages 1300–1303
نویسندگان
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