作者
Jin Wu, Zixuan Wu, Haojun Ding, Yaoming Wei, Xing Yang, Zhenyi Li, Bo-Ru Yang, Chuan Liu, Lin Qiu, Xiaotian Wang
发表日期
2019/11/11
期刊
ACS applied materials & interfaces
卷号
11
期号
46
页码范围
43383-43392
出版商
American Chemical Society
简介
A multifunctional sensor comprising humidity, temperature, and flow detection capabilities is fabricated with a facile, single-layered device structure. A microheater based on serpentine Pt microlines plays key roles in both humidity and flow sensing at the hot state by introducing an efficient Joule heating effect, and meanwhile functions as a reliable thermistor at the cold state for accurate temperature measurement. For the first time, the strong temperature-dependent humidity-sensing properties of graphene oxide (GO) are revealed using the microheater platform. The GO-based humidity sensor displays ultrahigh sensitivity [124/% relative humidity (RH)], fast response time (3 s), wide detection range (8–95% RH) at room temperature, while the sensitivity drops at elevated temperatures, indicating the non-negligible temperature effect. Interestingly, a linear relationship between sensitivity and voltage is observed for the …
学术搜索中的文章
J Wu, Z Wu, H Ding, Y Wei, X Yang, Z Li, BR Yang… - ACS applied materials & interfaces, 2019