当前位置：
X-MOL 学术
›
Adv. Mater.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Tuning Organic Electrochemical Transistor Threshold Voltage using Chemically Doped Polymer Gates
Advanced Materials ( IF 27.4 ) Pub Date : 2022-06-23 , DOI: 10.1002/adma.202202359 Siew Ting Melissa Tan 1 , Gijun Lee 1 , Ilaria Denti 1 , Garrett LeCroy 1 , Kalee Rozylowicz 1 , Adam Marks 1 , Sophie Griggs 2 , Iain McCulloch 2 , Alexander Giovannitti 1 , Alberto Salleo 1
Advanced Materials ( IF 27.4 ) Pub Date : 2022-06-23 , DOI: 10.1002/adma.202202359 Siew Ting Melissa Tan 1 , Gijun Lee 1 , Ilaria Denti 1 , Garrett LeCroy 1 , Kalee Rozylowicz 1 , Adam Marks 1 , Sophie Griggs 2 , Iain McCulloch 2 , Alexander Giovannitti 1 , Alberto Salleo 1
Affiliation
|
Organic electrochemical transistors (OECTs) have shown promise as transducers and amplifiers of minute electronic potentials due to their large transconductances. Tuning the OECT threshold voltage is important to achieve low-powered devices with amplification properties within the desired operational voltage range. However, traditional design approaches have struggled to decouple channel and materials properties from threshold voltage, thereby compromising on several other OECT performance metrics, such as electrochemical stability, transconductance, and dynamic range. In this work, simple solution-processing methods are utilized to chemically dope polymer gate electrodes, thereby controlling their work function, which in turn tunes the operation voltage range of the OECTs without perturbing their channel properties. Chemical doping of initially air-sensitive polymer electrodes further improves their electrochemical stability in ambient conditions. Thus, OECTs that are simultaneously low-powered and electrochemically resistant to oxidative side reactions under ambient conditions are demonstrated. This approach shows that threshold voltage, which is once interwoven with other OECT properties, can in fact be an independent design parameter, expanding the design space of OECTs.
中文翻译：
使用化学掺杂聚合物栅极调节有机电化学晶体管阈值电压
有机电化学晶体管 (OECT) 由于其较大的跨导，已显示出作为微小电势的传感器和放大器的前景。调整 OECT 阈值电压对于实现在所需工作电压范围内具有放大特性的低功率器件非常重要。然而，传统的设计方法一直难以将通道和材料特性与阈值电压分离，从而损害了其他几个 OECT 性能指标，例如电化学稳定性、跨导和动态范围。在这项工作中，使用简单的溶液处理方法对聚合物栅电极进行化学掺杂，从而控制它们的功函数，进而调整 OECT 的工作电压范围，而不会干扰它们的沟道特性。最初对空气敏感的聚合物电极的化学掺杂进一步提高了它们在环境条件下的电化学稳定性。因此，证明了在环境条件下同时具有低功率和电化学抗氧化副反应的 OECT。这种方法表明，曾经与其他 OECT 特性交织在一起的阈值电压实际上可以成为一个独立的设计参数，从而扩大了 OECT 的设计空间。
更新日期：2022-06-23
中文翻译：
使用化学掺杂聚合物栅极调节有机电化学晶体管阈值电压
有机电化学晶体管 (OECT) 由于其较大的跨导，已显示出作为微小电势的传感器和放大器的前景。调整 OECT 阈值电压对于实现在所需工作电压范围内具有放大特性的低功率器件非常重要。然而，传统的设计方法一直难以将通道和材料特性与阈值电压分离，从而损害了其他几个 OECT 性能指标，例如电化学稳定性、跨导和动态范围。在这项工作中，使用简单的溶液处理方法对聚合物栅电极进行化学掺杂，从而控制它们的功函数，进而调整 OECT 的工作电压范围，而不会干扰它们的沟道特性。最初对空气敏感的聚合物电极的化学掺杂进一步提高了它们在环境条件下的电化学稳定性。因此，证明了在环境条件下同时具有低功率和电化学抗氧化副反应的 OECT。这种方法表明，曾经与其他 OECT 特性交织在一起的阈值电压实际上可以成为一个独立的设计参数，从而扩大了 OECT 的设计空间。
京公网安备 11010802027423号