自动加热的自上而下制造的ITO传感器用于准确监测ppb级O3
Xiaohua Ji1,2, Meng Li3, Ruoqing Zhang1,2
1Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China.
研究人员开发了一种新方法,使用玻璃上的氧化物 (ITO) 制造高性能臭氧 (O3) 传感器. 这种方法可以在晶圆尺度上生产可靠的传感器,以精确实时监测环境臭氧水平.
科学领域:
- 材料科学 材料科学 材料科学
- 传感器技术 传感器技术
- 纳米技术纳米技术
背景情况:
- 具有高性能,可重复性和均性的金属氧化物半导体 (MOS) 气体传感器的晶圆尺度制造对于广泛部署至关重要.
- 目前存在的挑战是实现对MOS传感器的一致批量生产,用于选择性传感和电子鼻子等应用.
研究的目的:
- 提出并演示一种自上而下的制造方法,用于从商业氧化物 (ITO) 玻璃制造高性能臭氧 (O3) 传感器.
- 为了研究激光图案和Ar/H2等离子处理对O3传感器性能的影响.
主要方法:
- 使用了自上而下的制造方法,涉及到商用ITO眼镜的激光图案 (蚀刻).
- 应用Ar/H2等离子处理 (60分钟) 来改变表面形态,并通过自我加热诱导局部加热 (180°C).
主要成果:
- 实现了特殊的O3传感性能,包括显著改善的O3响应,良好的选择性,最小的湿度干扰和长期稳定性.
- 经过实时,精确的环境O3监测,从大约25到200ppb,与UV光度臭氧分析仪进行验证.
- 成功制造了晶圆尺度传感器阵列,具有统一的O3传感能力.
结论:
- 开发的制造方法结合了激光图案和等离子处理,提高了O3传感性能,并使晶圆规模生产成为可能.
- 基于ITO的传感器显示出对环境臭氧在ppb水平的精确实时监测中智能应用的前景.
- 这项工作解决了用于高性能MOS气体传感器的可重复晶圆尺度制造的挑战.
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