【作者】：Yingzhou Guan,Chunhao Li,Xiaoyang Cheng,Biao Wang,Ruize Sun,Xishuang Liang*,Jihong Zhao,Hong Chen,Geyu Lu
【题目】：Highly sensitive mixed-potential-type NO2 sensor with YSZ processed using femtosecond laser direct writing technology
【关键词】：YSZ, Femtosecond laser direct writing,Mixed-potential,NO2 sensor,Three-phase-boundary
【版面信息】：Sensors and Actuators B: Chemical 198 (2014) 110-113
摘要:
High performance mixed-potential-type NO2sensors using yttria-stabilized zirconia (YSZ) electrolyte with NiCr2O4sensing-electrode were fabricated. The femtosecond laser direct writing technology was used to process YSZ-substrate to construct structured surface. The results of scanning electron microscope(SEM) revealed that porous micron-sized groove was formed on the surface of YSZ-substrate by the radiation of 800-nm femtosecond laser. The sensor using processed YSZ-substrate outputted larger signal than the sensor using unprocessed YSZ-substrate in NO2containing atmosphere at 800℃which might be attributable to the enlargement of TPB (three-phase-boundary). In addition，the sensor maintained good response-recovery transients，repeatability and cross-sensitivity.
