Author/Authors :
Zhang، نويسنده , , Yanyan and Fu، نويسنده , , Wuyou and Yang، نويسنده , , Haibin and Li، نويسنده , , Minghui and Li، نويسنده , , Yixing and Zhao، نويسنده , , Wenyan and Sun، نويسنده , , Peng Fei Yuan، نويسنده , , Mingxia and Ma، نويسنده , , Dong and Liu، نويسنده , , Bingbing and Zou، نويسنده , , Guangtian، نويسنده ,
Abstract :
Na2Ti3O7 nanowires have been synthesized by a simple hydrothermal method, and characterized by X-ray diffraction (XRD), Field-emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM). The sensor fabricated from these Na2Ti3O7 nanowires shows high humidity sensitivity and rapid response-recovery. The impedance of the sensor decreases by about four orders of magnitude with increasing relative humidity (RH) from 11 to 95%. The response time of the sensor from 25 to 95% RH is about 4 s, and the corresponding recovery time is about 5 s. These results indicate the potential application of the Na2Ti3O7 nanowires for fabricating high-performance humidity sensors.
