CAJ | 학술논문

通过臭氧处理制备了一种简单、高效、可重复使用的单层石墨烯基NO2气体传感器，并研究了纯的和经过臭氧处理的NO2气体传感器的响应特性和恢复特性。实验表明：经臭氧处理75s后的石墨烯基气体传感器对10×10-6 NO2响应度可达到30%以上，是未经臭氧处理的石墨烯基气体传感器的2.8倍，且其响应的最低体积分数达150×10-9，低于世界卫生组织（WHO）空气质量标准（200×10-9，1h平均值）。
통과취양처리제비료일충간단、고효、가중복사용적단층석묵희기NO2기체전감기，병연구료순적화경과취양처리적NO2기체전감기적향응특성화회복특성。실험표명：경취양처리75s후적석묵희기기체전감기대10×10-6 NO2향응도가체도30%이상，시미경취양처리적석묵희기기체전감기적2.8배，차기향응적최저체적분수체150×10-9，저우세계위생조직（WHO）공기질량표준（200×10-9，1h평균치）。
A simple,high-efficient and reproducible single-layer graphene-based NO2 gas sensor is fabricated with ozone treatment method,and response and recovery characteristic of NO2 gas sensors based on the pristine and ozone treated single-layer graphene are investigated. Experiment shows sensitivity of ozone-treated graphene by 75 s to 10 ×10 -6 NO2 exceeds 30%,which is 2. 8 times more than sensitivity of the pristine graphene,and detection limit of volume fraction of NO2 is estimated to be 150 ×10-9 ,which is lower than the World Health Organization (WHO)air suality Standards(200 ×10-9,1h average value).