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Synthesis of crystalline Tellurium nanowires by thin film fabrication via thermal evaporation method | ||
| Journal of Interfaces, Thin Films, and Low dimensional systems | ||
| دوره 3، شماره 1، اسفند 2019، صفحه 211-218 اصل مقاله (1.23 M) | ||
| نوع مقاله: Original Article | ||
| شناسه دیجیتال (DOI): 10.22051/jitl.2020.29196.1035 | ||
| نویسندگان | ||
| Nahid Parsafar* 1؛ Akbar Ebrahimzad2 | ||
| 1Research Institute of Applied Sciences, Academic Center of Education, Culture and Research (ACECR) Shahid Beheshti University, Tehran, Iran | ||
| 2Research Institute of Applied Sciences (ACECR), Shahid Beheshti University, Tehran, Iran. | ||
| چکیده | ||
| Tellurium nanostructures have attracted much interest due to their interesting properties such as gas sensing, photoconductivity, nonlinear optical response, and high thermoelectric or piezoelectric responses. Crystalline Tellurium nanowires were successfully synthesized at 10-1 mbar, 10-2 mbar, and 10-3 mbar pressures by thin film fabrication via evaporation of Tellurium powder and its condensation on glass substrates at different temperatures in a tube furnace. The morphology and size of the products were studied using field emission scanning electron microscopy (FESEM). The synthesized nanowires have diameters between 46 and 100 nm and lengths up to several micrometers. X-Ray diffractometry (XRD) was carried out to characterize crystal structure of the products. The peaks of the diffractogram were successfully indexed assuming the hexagonal crystal structure of Tellurium. | ||
| کلیدواژهها | ||
| Tellurium؛ nanowire؛ thermal evaporation؛ tube furnace | ||
| عنوان مقاله [English] | ||
| سنتز نانوسیم های کریستالی تلوریوم به وسیله ایجاد لایه نازک از طریق روش تبخیر حرارتی | ||
| نویسندگان [English] | ||
| ناهید پارسافر1؛ اکبر ابراهیم زاد2 | ||
| 1گروه فیزیک، پژوهشکده علوم پایه کاربردی جهاد دانشگاهی | ||
| 2گروه فیزیک، پژوهشکده علوم پایه کاربردی جهاد دانشگاهی | ||
| چکیده [English] | ||
| نانوساختارهای تلوریوم به دلیل خواص جالبی همچون حسگری گاز، نوررسانایی، پاسخ نوری غیرخطی و پاسخهای بزرگ ترموالکتریک یا پیزوالکتریک توجه زیادی را به خود جلب کرده است. نانوسیمهای کریستالی تلوریومی با موفقیت در فشارهای 0.1، 0.01 و 0.001 میلی بار به وسیله ساخت لایه نازک و روش ساده تبخیر پودر تلوریوم و چگالش بخار آن بر روی زیرلایه شیشهای در دماهای مختلف در یک کوره لولهای سنتز شدند. مورفولوژی و اندازه محصولات با استفاده از میکروسکوپ الکترونی روبشی گسیل میدانی (FESEM) مورد بررسی قرار گرفت. نانوسیمهای سنتز شده دارای قطرهایی بین 46 تا 100 نانومتر و طولهایی تا چند میکرومتر هستند. پراشسنجی اشعه ایکس (XRD) برای مشخصهیابی ساختار کریستالی محصولات انجام شد. قلههای نقشه پراش با فرض ساختار کریستالی شش وجهی تلوریم با موفقیت ایندکس شدند. | ||
| کلیدواژهها [English] | ||
| تلوریوم, نانوسیم, تبخیر حرارتی, کوره لوله ای | ||
| مراجع | ||
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