项目来源
国家自然科学基金(NSFC)
项目主持人
苏元捷
项目受资助机构
电子科技大学
立项年度
2016
立项时间
未公开
项目编号
61604033
项目级别
国家级
研究期限
未知 / 未知
受资助金额
20.00万元
学科
信息科学-半导体科学与信息器件-半导体电子器件与集成
学科代码
F-F04-F0404
基金类别
青年科学基金项目
关键词
自供能 ; 摩擦纳米发电机 ; 一体化 ; 二氧化氮 ; 气体传感器 ; Triboelectric nanogenerator ; Self-powered ; Nitrogen dioxide ; Gas sensor ; Integrative
参与者
谢光忠；太惠玲；杜鸿飞；张秋平；谢法彪；朱国涛；吴寸雪；马行方
参与机构
西南民族大学
项目标书摘要：本项目提出一种新型的自主检测外界气体敏感机理，旨在为自供能检测技术提供新的研究思想。通过摩擦纳米发电机与气体传感器的集成实现了传感器供能—探测一体化。利用有限元数值模拟和第一性原理计算，研究纳米尺寸下摩擦纳米发电机发电原理与能量转化机制。同时，通过薄膜表征和电学测试相结合的方法，研究起电薄膜表面纳米化处理、发电机结构尺寸及加工工艺对发电机输出功率的影响，并优化器件结构和提高其能量转化效率。此外，该项目选择新型二维纳米材料和复合功能纳米材料作为气敏材料，探索其表面形貌、界面、扩散等对气体探测性能的影响。利用摩擦纳米发电机收集气流动能并转化成电能，所制备的传感器能够主动感知外界气体信号，无需配置电池或定期维护，从而有效地解决了无线传感器网络中半导体气体传感器电池寿命有限、应用范围窄等问题，确保了无线传感网络长期稳定运行。
Application Abstract: This project proposes a fundamentally new sensitive mechanism in self-powered gas sensing,aiming at providing a new idea for the self-powered sensing technology.The integration of energy harvesting and detection in a sensor unit is realized by the combination of the triboelectric nanogenerator and resistance gas sensor.Through finite element simulation and first principle calculation,the mechanism of electricity generation as well as energy conversion was studied.In addition,by the combination of thin film characterization and electric measurement,the influences of surface modification of contacting materials and structural parameter of nanogenerator as well as the processing technology on the output power were investigated to further optimize the device structure and improve its energy conversion efficiency.Moreover,on the basis of new two dimensional materials and hybrid functional nanomaterials as sensitive materials,the effects of surface morphology,interfaces and diffusion on the gas sensing characters were explored.To convert the mechanical energy of air flow into electricity by triboelectric nanogenerator,the prepared sensor is able to actively detect target gas without the need of batteries and period maintenance,which effectively addresses the problems of semiconductor gas sensors in wireless sensor networks,such as limited battery life and application range,and ensures its long-term stable operation.
项目受资助省
四川省
jia
