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首页> 外文会议>2016 IEEE Healthcare Innovation Point-Of-Care Technologies Conference >ITO-free 3D MEMS photodetector for point-of-care biosensing devices
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ITO-free 3D MEMS photodetector for point-of-care biosensing devices

机译：即时医疗生物传感设备的无ITO 3D MEMS光电探测器

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摘要

Organic Photo Detectors (OPD) present an attractive detection system to be incorporated in Point of Care (POC) disposable diagnostic devices due to their low cost fabrication and flexible device structure. Indium Tin Oxide (ITO) is the most commonly used material for the fabrication of transparent anode for these devices. The fabrication of ITO is an expensive process and the rarity of the materials required itself makes this the cost driving factor in realizing cheap and hence disposable detection system for the POC devices. Furthermore ITO has a spiked morphology that results in a shorter device lifetime. All these disadvantages associated with ITO have made the search for an alternative material for ITO which has comparable characteristics an important research field. In this study we explore the possibility of utilizing a commercially available high conductivity grade solution of PEDOT:PSS and further enhance its characteristics by addition of gold nano particles and a MEMS structure to enhance the photo absorption of the OPD by increased surface area. The reported results show comparable sheet resistance values (18.2 Ω/sq for the fabricated electrode) and optical characteristics to the ITO electrode and a much better surface morphology characteristics for the new fabricated electrode.
机译：有机光电检测器（OPD）提出了一种有吸引力的检测系统，该系统因其低成本的制造和灵活的设备结构而可用于即时医疗点（POC）一次性诊断设备中。氧化铟锡（ITO）是用于制造这些设备的透明阳极的最常用材料。 ITO的制造是一个昂贵的过程，而所需材料本身的稀有性使其成为实现POC器件的廉价且可抛弃的检测系统的成本驱动因素。此外，ITO具有尖峰形貌，可缩短设备寿命。与ITO相关的所有这些缺点使得寻找具有可比特性的ITO替代材料成为重要的研究领域。在这项研究中，我们探索了利用市售的PEDOT：PSS高电导率级溶液的可能性，并通过添加金纳米颗粒和MEMS结构进一步增强其特性，以通过增加表面积来增强OPD的光吸收。报告的结果显示出与ITO电极相当的薄层电阻值（对于制造的电极为18.2Ω/ sq）和光学特性，对于新制造的电极，具有更好的表面形态特性。

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  • 来源
  • 会议地点 Cancun(MX)
  • 作者

    Ahmad Hassan Mirza; Nuno Miguel Matos Pires; Tao Dong;

  • 作者单位

    Institute of Applied Micro-Nano Science and Technology, Chongqing Engineering Laboratory for Detection, Control and Integrated Systems, Chongqing Technology and Business University, Nan'an District, Chongqing 400067, China;

    Institute of Applied Micro-Nano Science and Technology, Chongqing Engineering Laboratory for Detection, Control and Integrated Systems, Chongqing Technology and Business University, Nan'an District, Chongqing 400067, China;

    Department of Micro and Nano Systems Technology-IMST, Faculty of Technology and Maritime Sciences-TekMar, University College of Southeast Norway, Postboks 235, 3603 Kongsberg, Norway;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Indium tin oxide; Gold; Substrates; Optical device fabrication; Anodes;

    机译：氧化铟锡;金;基板;光学器件制造;阳极;

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