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سنتز و مشخصه‌یابی نانوصفحات اکسیدروی به روش سل-ژل و بررسی اثر ناخالصی آهن و مس روی خواص ساختاری و گاف نواری | ||
| فصلنامه علمی اپتوالکترونیک | ||
| دوره 7، شماره 2 - شماره پیاپی 19، دی 1403، صفحه 31-38 اصل مقاله (414.71 K) | ||
| نوع مقاله: پژوهشی | ||
| شناسه دیجیتال (DOI): 10.30473/jphys.2024.70738.1186 | ||
| نویسندگان | ||
| داریوش مهرپرور* 1؛ معصومه ناصری تکیه2؛ رستم مرادیان3؛ شهریار مهدوی4 | ||
| 1دانشجوی دکتری، گروه فیزیک، دانشکده علوم، دانشگاه ملایر، ملایر، ایران. | ||
| 2استادیار، گروه فیزیک، دانشکده علوم، دانشگاه ملایر، ملایر، ایران. | ||
| 3استاد، گروه فیزیک، دانشکده علوم، دانشگاه رازی، کرمانشاه، ایران. | ||
| 4دانشیار، گروه علوم خاک، دانشکده کشاورزی، دانشگاه ملایر، ملایر، ایران. | ||
| چکیده | ||
| در این تحقیق، نانوصفحات اکسیدروی به روش سل-ژل با نمک پیش ماده نیترات روی تهیه و سپس با عناصر ناخالصی آهن و مس آلاییده شدند که نانوساختارهای خالص و آلاییده اکسیدروی با مواد ارزان قیمت و به روشی آسان و در دسترس با تجهیزات آزمایشگاهی کم و در مدت زمان بسیار کوتاه سنتز شدند. خواص ساختاری و مورفولوژی نمونه‌های تهیه شده با پراش اشعه ایکس (XRD)، میکروسکوپ الکترونی روبشی گسیل میدانی (FESEM) و طیف مادون قرمز تبدیل فوریه (FT-IR) مشخص شدند. نتایج پراش اشعه ایکس نشان داد که نانوذرات اکسیدروی در تمامی‌نمونه‌ها در ساختار کریستالی ورتسایت بدون مشاهده هیچ پیک اضافی شکل گرفته‌اند. گروه عاملی و برهمکنش‌های شیمیایی نمونه‌های اکسیدروی نیز در پیک‌های مختلف با استفاده از داده‌های طیف مادون قرمز تعیین شد که گروه‌های عاملی مربوط به باندهای Zn-O در نمونه‌ها به تایید طیف پراش اشعه ایکس مشاهده شد. تجزیه و تحلیل میکروسکوپ الکترونی روبشی نشان داد که ناخالصی سبب ایجاد مورفولوژی‌های متفاوتی برای هر نمونه شده است. می‌توان نتیجه گرفت که نوع ناخالصی‌ها سبب تغییر مورفولوژی می‌شود اما ساختار بدون تغییر است. برای بررسی گاف نواری از آنالیز طیف بینی جذبی فرابنفش- مرئی (UV-Visible) استفاده شد که نشان داد گاف نواری نمونه‌ها با افزایش ناخالصی‌ها کاهش یافت | ||
| کلیدواژه‌ها | ||
| اکسیدروی؛ نانوصفحه؛ آهن؛ مس؛ سل-ژل؛ خواص ساختاری؛ مورفولوژی؛ گاف نواری | ||
| عنوان مقاله [English] | ||
| Synthesis and Characterization of Zinc Oxide Nano-Sheets Via Sol-Gel Method: Impact of Iron and Copper Impurities on Structural Properties and Band-Gap | ||
| نویسندگان [English] | ||
| Dariush Mehrparvar1؛ Masome Naseri tekyeh2؛ Rostam Moradian3؛ Shahriar Mahdavi4 | ||
| 1Ph.D. Student in Condensed Matter Physics, Physics Department, Faculty of Science, Malayer University, Malayer, Iran. | ||
| 2Assistant Professor, Physics Department, Faculty of Science, Malayer University, Malayer, Iran. | ||
| 3Professor, Physics Department, Faculty of Science, Razi University, Kermanshah, Iran. | ||
| 4Associate Professor, Department of Soil Science, Faculty of Agriculture, Malayer University, Malayer, Iran. | ||
| چکیده [English] | ||
| In this study, zinc oxide nano-sheets were prepared via the sol-gel method using zinc nitrate as the precursor salt, that pure and doped zinc oxide nanostructure synthesized with cheap materials and using an easy and available method with low laboratory equipment and in a very short period of time. Subsequently, the samples doped with iron and copper impurities. The structural and morphological properties of the prepared samples determined using X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), and Fourier-transform infrared spectroscopy (FT-IR). The XRD results indicated that the zinc oxide nanoparticles in all samples adopted a wurtzite crystal structure with no any additional peaks observed. The functional groups and chemical interactions of the zinc oxide samples also determined at various peaks using FT-IR data, confirming the presence of Zn-O bonds in the samples as observed by XRD. The analysis of FESEM revealed that the impurities led to the formation of different morphologies for each sample. It can conclude that the type of impurities influences the morphological changes while the structure remains unchanged. To investigate the band-gap, UV-Visible spectroscopy employed, showing a decrease in the band-gap of the samples with increasing impurities. | ||
| کلیدواژه‌ها [English] | ||
| Zinc Oxide, Nano-Sheet, Iron, Copper, Sol-Gel, Structural Properties, Morphology, Band-Gap | ||
| مراجع | ||
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