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Fully Integrated Organic Field‐Effect Transistor Platform to Detect and to Quantify NO2 Gas
Physica Status Solidi-Rapid Research Letters ( IF 2.5 ) Pub Date : 2020-05-04 , DOI: 10.1002/pssr.202000086 Saravanan Yuvaraja 1 , Sandeep G. Surya 1 , Mani Teja Vijjapu 1 , Valeriya Chernikova 2 , Osama Shekhah 2 , Mohamed Eddaoudi 2 , Khaled Nabil Salama 1
Physica Status Solidi-Rapid Research Letters ( IF 2.5 ) Pub Date : 2020-05-04 , DOI: 10.1002/pssr.202000086 Saravanan Yuvaraja 1 , Sandeep G. Surya 1 , Mani Teja Vijjapu 1 , Valeriya Chernikova 2 , Osama Shekhah 2 , Mohamed Eddaoudi 2 , Khaled Nabil Salama 1
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Herein, the gas sensing characteristics of PDVT‐10 organic field‐effect transistor (OFET) devices are explored and integrated to build a compact analog‐to‐digital converter (ADC) gas detection system. The electrical characteristics of the pristine PDVT‐10 OFET exhibit Ion/Ioff ratio and threshold voltage as 104 and −12 V, respectively. Through the coating of a metal‐organic framework (MOF) on the surface of PDVT‐10, the Ion/Ioff improves by one order of magnitude accompanied by significant positive threshold shift measured around 4 V. MOF is added as a pre‐concentrating material, and the device exhibits excellent selectivity and good sensitivity toward the target NO2 gas. Most of the reports available in the literature generally focus on the gas sensing performance of individual sensors, which does not have the potential to solve real‐time sensing problems. Hence, for the first time, a fully integrated ADC system is designed with just two OFETs. The integrated ADC system not only detects the NO2 gas with high sensitivity and selectivity but also generates a 5 bit digital output corresponding to different NO2 gas concentrations from 25 ppb to 1 ppm.
中文翻译：
完全集成的有机场效应晶体管平台，用于检测和量化NO2气体
在此，探索并集成了PDVT-10有机场效应晶体管（OFET）器件的气体传感特性，以构建一个紧凑的模数转换器（ADC）气体检测系统。原始PDVT-10表现出OFET的电特性我上/我关比和阈值电压作为10 4和-12 V，分别。通过在PDVT-10的表面上涂覆金属有机骨架（MOF），I on / I off气体浓度提高了一个数量级，并伴随着在4 V附近测得的显着正阈值漂移。MOF作为预浓缩材料添加，该器件表现出出色的选择性和对目标NO 2气体的良好敏感性。文献中可获得的大多数报告通常都集中在单个传感器的气体传感性能上，这没有解决实时传感问题的潜力。因此，首次设计了仅具有两个OFET的全集成ADC系统。集成的ADC系统不仅可以高灵敏度和选择性地检测NO 2气体，还可以生成一个5位数字输出，该输出对应于25 ppb至1 ppm的不同NO 2气体浓度。
更新日期：2020-05-04
中文翻译：
完全集成的有机场效应晶体管平台，用于检测和量化NO2气体
在此，探索并集成了PDVT-10有机场效应晶体管（OFET）器件的气体传感特性，以构建一个紧凑的模数转换器（ADC）气体检测系统。原始PDVT-10表现出OFET的电特性我上/我关比和阈值电压作为10 4和-12 V，分别。通过在PDVT-10的表面上涂覆金属有机骨架（MOF），I on / I off气体浓度提高了一个数量级，并伴随着在4 V附近测得的显着正阈值漂移。MOF作为预浓缩材料添加，该器件表现出出色的选择性和对目标NO 2气体的良好敏感性。文献中可获得的大多数报告通常都集中在单个传感器的气体传感性能上，这没有解决实时传感问题的潜力。因此，首次设计了仅具有两个OFET的全集成ADC系统。集成的ADC系统不仅可以高灵敏度和选择性地检测NO 2气体，还可以生成一个5位数字输出，该输出对应于25 ppb至1 ppm的不同NO 2气体浓度。
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