Overcoming Non-linearity in Transistors with Printed Biodegradable Thin Film Transistors

使用印刷可生物降解薄膜晶体管克服晶体管的非线性

• 批准号: 571421-2021
• 负责人: Bhadra, SharmisthaS
• 金额: $ 3.28万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=751771
• 关键词: Overcoming; Non; linearity; Transistors; Printed

Incessant demand for electronics produces huge amount of electronic waste (E-waste). E-waste contains substances that cannot be decomposed and are hazardous to the environment such as lead. Although electronics industries have focused on computing power and miniaturization in last three decades, they have not focussed on safe materials and processes that generate less hazardous material waste. As such, there is a need for the development of new bio-degradable electronics that are environmentally safe, disposable, and can be produced in large volume at low-cost with less chemical waste. Printed electronics (PE), because of its additive nature is evolving as a practical and environment friendly alternative to conventional microfabrication due to its cost-efficiency, ability to produce large area electronics, less to no hazardous material waste and flexible form factor. Therefore, use of biodegradable material along with PE can reduce E-waste. Since transistors are one of the basic building blocks of modern electronics, it is important to develop biodegradable transistors. Although researchers have reported biodegradable transistors, that are typically fabricated with complex traditional subtractive microfabrication techniques involving hazardous material waste. These transistors contain materials that need to be degraded under certain chemical conditions, and produce hazardous by-products. In these contexts, we propose to design and develop biodegradable environmentally safe thin film transistor (TFT) with PE technology. For the TFT structure we choose the multimodal transistor (MMT) as MMT's structure is simple enough to be fabricated with PE and it provides a unique linear behavior. Non-linearity in transistors causes various issues for devices such as distortion in amplifiers. In this project, we will develop and characterize high performance long lasting (few years life time) biodegradable materials for different layers of MMT and come up with processes to deposit them with printing processes. The printed MMT structure will be designed and fabricated using those materials and processes to achieve good performance such as linearity, high gain, high on-off ratio and low power requirement. After successful characterization of MMT, a low distortion amplifier will be designed and developed with the MMT. Successful completion of the project will help to overcome two existing major issues in electronics area: 1) E-waste and 2) non-linearity of transistors.

对电子产品的巨大需求产生了大量的电子废物（E-waste）。电子废物含有铅等无法分解且对环境有害的物质。尽管电子行业在过去三十年中一直专注于计算能力和小型化，但他们并没有关注产生较少危险材料废物的安全材料和工艺。因此，需要开发新的可生物降解的电子产品，其是环境安全的、一次性的，并且可以以低成本大量生产，具有较少的化学废物。印刷电子（PE）由于其添加剂性质，由于其成本效益，生产大面积电子产品的能力，较少甚至没有危险材料浪费和灵活的形状因素，正在发展成为传统微制造的实用和环境友好的替代品。因此，使用可生物降解材料沿着PE可以减少电子废物。由于晶体管是现代电子产品的基本组成部分之一，因此开发可生物降解的晶体管非常重要。虽然研究人员已经报道了可生物降解的晶体管，但这些晶体管通常是用复杂的传统减材微制造技术制造的，涉及有害材料废物。这些晶体管含有需要在某些化学条件下降解的材料，并产生有害的副产品。在这些背景下，我们提出了设计和开发可生物降解的环境安全的薄膜晶体管（TFT）与PE技术。对于TFT结构，我们选择了多峰晶体管（MMT），因为MMT的结构足够简单，可以用PE制造，并且它提供了独特的线性行为。晶体管的非线性会给器件带来各种问题，例如放大器的失真。 在这个项目中，我们将开发和表征高性能的持久（几年的寿命）可生物降解材料的不同层的蒙脱土，并提出了工艺，存款他们与印刷工艺。印刷MMT结构将使用这些材料和工艺来设计和制造，以实现良好的性能，如线性度，高增益，高开关比和低功耗要求。 在成功表征MMT之后，将用MMT设计和开发低失真放大器。该项目的成功完成将有助于克服电子领域现有的两个主要问题：1）电子废物和2）晶体管的非线性。