نانومقیاس

نانومقیاس

ساخت میکرومکعب های توپر و توخالی ZnSnO3 و بررسی خواص حسگری آن ها برای گاز استون

نوع مقاله : مقاله پژوهشی

نویسندگان
گروه فیزیک، دانشکده علوم، دانشگاه شهید چمران اهواز، اهواز، ایران
چکیده
در این تحقیق میکرومکعب‌های توپر و توخالی ZnSnO3 به روش هم‌رسوبی ساخته شد. به‌منظور بررسی خواص ساختاری این میکرومکعب‌ها، از پراش اشعه ایکس XRD))، تبدیل فوریه مادون قرمز (FT-IR)، میکروسکوپ الکترونی روبشی میدانی (SEM-FE) و (BET) استفاده گردید، که نتایج نشان می‌دهد میکرومکعب‌هایZnSnO3 با خلوص بالایی ساخته شده‌اند، سپس برای انجام تست‌های حسگری ذرات سنتز شده محلول مناسبی را آماده و بر زیرلایه کوت شده با طلا لایه نشانی کرده و آزمون حسگری گاز برای میکرومکعب‌های توپر و توخالی ZnSnO3 انجام گردید. نتایج نشان داد که حسگر میکرومکعب‌های توخالی ZnSnO3 در دمای 220 درجه سانتی‌گراد با پاسخ بازدهی 53 و زمان پاسخ و بازیابی (34 و 35 ثانیه) برای گاز استون با غلظت ppm 100 بازدهی بهتری را نسبت به نمونۀ توپر از خود نشان داده است. همچنین این حسگر نسبت به گاز استون در مقایسه با گازهای دیگر از جمله: اتانول، متانول، بنزن ، تولوئن و آمونیاک پاسخ بهتری دارد.
کلیدواژه‌ها
موضوعات

عنوان مقاله English

Fabrication of solid and hollow ZnSnO3 microcubes and investigation of their sensing properties

نویسندگان English

Shiva Azizi
Iraj Kazeminezhad
Physics department, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
چکیده English

In this study, solid and hollow microcubes of ZnSnO3 were synthesized via the co-precipitation method. To investigate the structural properties of these microcubes, X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, field-emission scanning electron microscopy (FE-SEM), and (BET) were utilized, demonstrating the high purity of the ZnSnO3 microcubes. Subsequently, to conduct sensing tests of the synthesized particles, a suitable solution was prepared and coated onto a gold-coated substrate, and gas sensing tests were performed for solid and hollow ZnSnO3 microcubes. The results indicated that the hollow ZnSnO3 microcube sensor exhibited a superior efficiency response at a temperature of 220 oC, with a response and recovery time of 34 and 35 s, efficiency response of 53, for acetone gas at a concentration of 100 ppm compared to the solid sample. also, this sensor displayed a better response to acetone gas compared to other gases such as ethanol, methanol, benzene, toluene, and NH3.

کلیدواژه‌ها English

co-precipitation
ZnSnO3
semiconductor
gas sensor
acetone gas
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دوره 12، شماره 3
پاییز 1404
صفحه 240-251

  • تاریخ دریافت 21 آذر 1403
  • تاریخ بازنگری 27 دی 1403
  • تاریخ پذیرش 21 بهمن 1403