کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5468310 1518930 2017 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A humidity sensor based on quartz crystal microbalance using graphene oxide as a sensitive layer
ترجمه فارسی عنوان
یک سنسور رطوبت بر اساس میکروبازار کریستال کوارتز با استفاده از اکسید گرافین به عنوان یک لایه حساس
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سطوح، پوشش‌ها و فیلم‌ها
چکیده انگلیسی
Humidity is a vital physical quantity which is extremely important to production quality control, reliability of electronics, and health of human being. This paper proposed a humidity sensor based on quartz crystal microbalance (QCM) using graphene oxide as a sensitive layer, and investigated the characteristics of sensor according to the shift of quality factor (Q factor) as well as resonant frequency at different relative humidity (RH). Results show that at low RH values, the shift of Q factor is more suitable than the shift of resonant frequency for assessing the sensitivity of the sensor. By combining both frequency and Q factor shifts, we obtain a sensitivity of ∼1371/1%RH at 10-60%RH (by Q factor) and 1068 Hz/10%RH at 70%RH (by frequency), which are much better than the reported QCM humidity sensors, with good linearity. The QCM humidity sensor also shows good repeatability with response time and recovery time smaller than 20 and 3 s, respectively. These good characteristics of the sensor are attributed to the large surface area and high hydrophilic nature of the graphene oxide, demonstrated good potential for future applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vacuum - Volume 140, June 2017, Pages 101-105
نویسندگان
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