维普中文期刊产品整合服务

MoS2 Nanosheets Sensitized with Quantum Dots for Room-Temperature Gas Sensors

查看全文 作　　者：Jingyao [1]Liu;Zhixiang [1]Hu;Yuzhu [1]Zhang;HuaYao [1]Li;Naibo [1]Gao;Zhilai [1]Tian;Licheng [1]Zhou;Baohui [1]Zhang;Jiang [1]Tang;Jianbing [1]Zhang;Fei [1]Yi;Huan [1]Liu 高影响力作者 机构地区：[1]School of Optical and Electronic Information,Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,1037 Luoyu Road,Wuhan 430074,People’s Republic of China高影响力机构 出　　处：《Nano-Micro Letters》索引2020年第12卷第5期,共13页高影响力期刊 基　　金：National Natural Science Foundation of China(Nos.61861136004 and 61922032). 摘　　要：The Internet of things for environment monitoring requires high performance with low power-consumption gas sensors which could be easily integrated into large-scale sensor network.While semiconductor gas sensors have many advantages such as excellent sensitivity and low cost,their application is limited by their high operating temperature.Two-dimensional(2D)layered materials,typically molybdenum disulfide(MoS2)nanosheets,are emerging as promising gas-sensing materials candidates owing to their abundant edge sites and high in-plane carrier mobility.This work aims to overcome the sluggish and weak response as well as incomplete recovery of MoS2 gas sensors at room temperature by sensitizing MoS2 nanosheets with PbS quantum dots(QDs).The huge amount of surface dangling bonds of QDs enables them to be ideal receptors for gas molecules.The sensitized MoS2 gas sensor exhibited fast and recoverable response when operated at room temperature,and the limit of NO2 detection was estimated to be 94 ppb.The strategy of sensitizing 2D nanosheets with sensitive QD receptors may enhance receptor and transducer functions as well as the utility factor that determine the sensor performance,offering a powerful new degree of freedom to the surface and interface engineering of semiconductor gas sensors. 关 键 词：Gas sensor ROOM TEMPERATURE MOLYBDENUM DISULFIDE Quantum DOT Nitrogen dioxide
相关文献

参考文献(56)

引证文献(7)

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1　渝公网安备 50019002500403号　违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费