چکیده مقاله :
لایه نازک اکسید روی به روش سل- ژل روی بستر شیشهای سنتز شد. ساختار بلوری و ریخت شناسی سطح با استفاده از
تفرق سنجی اشعه ایکس (XRD) و میکروسکوپ الکترونی روبشی(SEM) مورد مطالعه قرارگرفت. اندازه ذرات بلوری تشکیل
شده روی سطح بر اساس معادله شرر (Scherrer) و نرم افزار X'pert Highscor محاسبه شد که در حدود 30nm برآورد
گردید. با استفاده از پوشش سنتز شده، حسگر گازی اکسید فلزی تهیه شد و حساسیت حسگر ساخته شده نسبت به دو گازها
پرکاربرد O2 و CO2 مورد ارزیابی قرار گرفت. نتایج نشان دادند که پوشش متخلخل اکسید روی حساسیت بالایی نسبت به
این دو گاز دارد. همچنین، زمان پاسخ (Response time) برای گاز اکسیژن دو برابر گاز دی اکسید کربن و در حدود 12
ثانیه بود.
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