College of Engineering and Technology, Southwest University, Chongqing 400716, China.
School of Computer Science & Technology, Beijing Institute of Technology, Beijing 100081, China.
Sensors (Basel). 2022 May 19;22(10):3860. doi: 10.3390/s22103860.
The reasonable allocation and control of CO concentration in a greenhouse are very important for the optimal growth of crops. In this study, based on density functional theory (DFT), an MoS-GeSe monolayer was proposed to unravel the issues of the lower selectivity, poorer sensitivity and non-recyclability of traditional nanomaterial gas sensors. The incorporation of MoS units greatly enhanced the sensitivity of the pure GeSe monolayer to CO and the high binding energy also demonstrated the thermal stability of the doped structures. The ideal adsorption energy, charge transfer and recovery time ensured that the MoS-GeSe monolayer had a good adsorption and desorption ability. This paper aimed to solve the matter of recycling sensors within agriculture. This research could provide the theoretical basis for the establishment of a potentially new generation of gas sensors for the monitoring of crop growth.
温室中 CO 浓度的合理分配和控制对作物的最佳生长非常重要。在这项研究中，基于密度泛函理论（DFT），提出了 MoS-GeSe 单层来解决传统纳米材料气体传感器选择性较低、灵敏度较差和不可回收的问题。MoS 单元的掺入极大地提高了纯 GeSe 单层对 CO 的灵敏度，而高结合能也证明了掺杂结构的热稳定性。理想的吸附能、电荷转移和恢复时间确保了 MoS-GeSe 单层具有良好的吸附和解吸能力。本文旨在解决农业中传感器的回收问题。这项研究可为监测作物生长的新一代潜在气体传感器的建立提供理论基础。
