کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1639094 | 1517025 | 2010 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of Sn4+ content on properties of indium tin oxide nanopowders
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Indium tin oxide (ITO) nanopowders were prepared by a modified chemical co-precipitation process. The influence of different SnO2 contents on the decomposition behavior of ITO precursors, and on the phase and morphology of ITO precursors and ITO nanopowders were studied by X-ray diffractometry, transmission electron microscopy and differential thermal and thermogravimetry analysis methods. The TG-DSC curves show that the decomposition process of precursor precipitation is completed when the temperature is close to 600 °C and the end temperature of decomposition is somewhat lower when the doping amount of SnO2 is increased. The XRD patterns indicate that the solubility limit of Sn4+ relates directly to the calcining temperature. When being calcined at 700 °C, a single phase ITO powder with 15% SnO2 (mass fraction) can be obtained. But, when the calcining temperature is higher than 800 °C, the phase of SnO2 will appear in ITO nanopowders which contain more than 10% SnO2. The particle size of the ITO nanopowders is 15-25 nm. The ITO nanoparticles without Sn have a spherical shape, but their morphology moves towards an irregular shape when being doped with Sn4+.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 20, Issue 4, April 2010, Pages 643-648
Journal: Transactions of Nonferrous Metals Society of China - Volume 20, Issue 4, April 2010, Pages 643-648
نویسندگان
Bao-qiang XU, Rui-kang FENG, Bin YANG, Yong DENG,