OFET chemical sensors: Chemical sensors based on ultrathin organic field‐effect transistors,Polymer International

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OFET chemical sensors: Chemical sensors based on ultrathin organic field‐effect transistors
Polymer International ( IF 2.9 ) Pub Date : 2020-08-01 , DOI: 10.1002/pi.6095
Yan Wang ₁ , Junyao Zhang ₁ , Shiqi Zhang ₁ , Jia Huang ₁

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In the past decades, a variety of organic field‐effect transistor (OFET) based sensors have been reported, holding great promise in physical sensing, chemical sensing, biosensing, medical sensing and functionalized integrated sensor arrays, thanks to the superiorities of OFETs, including fabrication versatility and high sensitivity to external stimulus. However, the sensing performance still needs to be enhanced to meet practical application requirements, especially high sensitivity and short response time. Among all the effective strategies, ultrathin organic semiconductor (OSC) film devices show significantly promoted sensing performance, and the fabrication methods to obtain these ultrathin OSC films are of importance and diversity. Here, a brief review focused on ultrathin (including molecular monolayer) OSC film fabrication methods is presented, including high‐vacuum thermal evaporation, solution‐processable methods, and the approach of combining ultrathin films with heterojunctions. Additionally, applications of ultrathin OFET‐based chemical and biological sensors are summarized. Finally, the outlook and challenges ahead are discussed. We hope this review can offer guidance for the fabrication methods and potential applications of ultrathin OFET‐based chemical and biological sensors in the future. © 2020 Society of Industrial Chemistry

中文翻译：

OFET化学传感器：基于超薄有机场效应晶体管的化学传感器

在过去的几十年中，已经报道了多种基于有机场效应晶体管（OFET）的传感器，它们在物理传感，化学传感，生物传感，医学传感和功能化集成传感器阵列方面都具有广阔的前景，这要归功于OFET的优势，包括制造的多功能性和对外部刺激的高度敏感性。但是，仍然需要提高感测性能以满足实际应用需求，特别是高灵敏度和短响应时间。在所有有效策略中，超薄有机半导体（OSC）膜器件显示出显着提高的感测性能，并且获得这些超薄OSC膜的制造方法具有重要意义和多样性。这里，本文简要介绍了超薄（包括分子单层）OSC膜的制备方法，包括高真空热蒸发，可溶液处理的方法以及将超薄膜与异质结结合的方法。此外，还总结了基于超薄OFET的化学和生物传感器的应用。最后，讨论了前景和挑战。我们希望这篇综述可以为将来基于超薄OFET的化学和生物传感器的制造方法和潜在应用提供指导。©2020工业化学学会最后，讨论了前景和挑战。我们希望这篇综述可以为将来基于超薄OFET的化学和生物传感器的制造方法和潜在应用提供指导。©2020工业化学学会最后，讨论了前景和挑战。我们希望这篇综述可以为将来基于超薄OFET的化学和生物传感器的制造方法和潜在应用提供指导。©2020工业化学学会

更新日期：2020-08-01

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