ZnO Nanorod-Based Humidity Sensors With Fast Response

被引:11
作者
Jung, Soyoun [1 ]
Ji, Taeksoo [2 ]
机构
[1] Samsung Display Co Ltd, Yongin 440711, South Korea
[2] Chonnam Natl Univ, Sch Elect & Comp Engn, Kwangju 500757, South Korea
关键词
Wheatstone bridge; zinc oxide; nanorods; humidity sensor;
D O I
10.1109/LED.2014.2335231
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Humidity sensors based on ZnO nanorods (NRs) have been developed using a Wheatstone bride (WB) configuration, where the ZnO NRs were selectively grown onto the one quadrant of the WB circuit. It turns out that the WB-based sensor possesses superior performances in terms of response and recovery time, and thermal stability in comparison with conventional types of resistive sensors. Thus, the WB sensor exhibits a fast response and recovery time (similar to 1 s), and temperature-invariant behaviors over a broad range of temperatures up to 180 degrees C, which is likely because of the self-calibrating and error correction capabilities of the WB circuit itself.
引用
收藏
页码:960 / 962
页数:3
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