首页> 外文期刊>RSC Advances >A CH3NH3PbI3 film for a room-temperature NO2 gas sensor with quick response and high selectivity
【24h】

A CH3NH3PbI3 film for a room-temperature NO2 gas sensor with quick response and high selectivity

机译:用于室温NO 2 气体传感器的CH 3 NH 3 PbI 3 膜选择性

获取原文
           

摘要

A room-temperature NO2 gas sensor with excellent performances is fabricated using an MAPbI3 (MA = CH3NH3+) thin film. It presents a high response even under extremely low NO2 concentrations. Its average response and recovery times are only ~5 s and ~25 s at room temperature, respectively, exhibiting its quick-responsive character. In addition, the MAPbI3-based NO2 sensor exhibits good selectivity. Interestingly, the sensitivity of the MAPbI3-based NO2 sensor is strikingly improved under high-pressure gas conditions. This phenomenon can be used for the online monitoring of chemical reaction processes and in situ detection of trace-level gas impurities under high-pressure conditions. Furthermore, based on theoretical calculations, a simple model is proposed to illustrate the corresponding gas-sensing mechanism.
机译:使用MAPbI 3 (MA = CH < small> 3 NH 3 + )薄膜。即使在极低的NO 2 浓度下,它也具有很高的响应性。在室温下其平均响应时间和恢复时间分别仅为〜5 s和〜25 s,表现出其快速响应特性。此外,基于MAPbI 3 的NO 2 传感器具有良好的选择性。有趣的是,在高压气体条件下,基于MAPbI 3 的NO 2 传感器的灵敏度显着提高。 。这种现象可用于在线监测化学反应过程和在高压条件下原位检测痕量气体杂质。此外,基于理论计算,提出了一个简单的模型来说明相应的气体传感机理。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号