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首页> 外文期刊>Sensors and Actuators, A. Physical >A plastic-based bolometer array sensor using carbon nanotubes for low-cost infrared imaging devices
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A plastic-based bolometer array sensor using carbon nanotubes for low-cost infrared imaging devices

机译：使用碳纳米管的基于塑料的辐射热计阵列传感器，用于低成本红外成像设备

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摘要

We have developed an infrared image sensor based on bolometers on a plastic substrate that is potentially ultra low-cost due to its simple structure consisting of mainly organic materials. The bolometer includes a thermal isolator made of a very low thermal conductive polymer (parylene) and a newly developed, highly sensitive (TCR <-2%/K) carbon nanotube thin film thermistor. Experiment results showed that the responsivity of our sensor was 138 V/W (at V_B = 2 V) and the estimated noise equivalent temperature difference (NETD) at room temperature was 1.1 K. The row-column type 64-pixel (8 × 8) array sensor was fabricated and evaluated while the image of a heat source was focused on the sensor array by a Ge lens. Utilizing the test readout circuit based on switching modules, we obtained the images of the heat source and confirmed the basic operation of IR imaging.
机译：我们已经开发了一种基于辐射热计的红外图像传感器，该红外图像传感器位于塑料基板上，由于其简单的结构（主要由有机材料组成），其潜在的超低成本优势。辐射热计包括由极低导热性聚合物（聚对二甲苯）制成的热隔离器和新开发的高灵敏度（TCR <-2％/ K）碳纳米管薄膜热敏电阻。实验结果表明，我们的传感器的响应度为138 V / W（在V_B = 2 V时），室温下的估计噪声等效温差（NETD）为1.1K。行列型64像素（8×8）制造并评估阵列传感器，同时用Ge透镜将热源图像聚焦在传感器阵列上。利用基于开关模块的测试读出电路，我们获得了热源的图像并确认了红外成像的基本操作。

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