Mediaspace scheduled maintenance: Aug 25, 2026 07:00 - 12:00 AM. During this time, videos will be temporarily unavailable. Check status updates.

Lecture

Organic Thin Film Transistors

In course

MICRO-505: Organic and printed electronics

This course addresses the implementation of organic and printed electronics technologies using large area manufacturing techniques. It will provide knowledge on materials, printing techniques, devices, systems, and applications: state of the art and curren ...

Description

This lecture covers the characteristics and operation of Organic Thin Film Transistors (OTFTs), focusing on ideal characteristics, mobility, threshold voltage, and static figures of merit. It also discusses the impact of stress on lifetime and the concept of ambipolar transport in conjugated materials. The presentation includes examples of OTFT applications in printed sensors for skin/wearable devices and the design challenges for more complex circuits. The instructor emphasizes the need for continuous improvement in material properties and the potential for flexible/disposable systems in various domains.

This video is available exclusively on Mediaspace for a restricted audience. Please log in to MediaSpace to access it if you have the necessary permissions.

Watch on Mediaspace

Instructors (2)

Vivek Subramanian

Danick Briand

Official source

Related concepts (32)

Organic electronics

Organic electronics is a field of materials science concerning the design, synthesis, characterization, and application of organic molecules or polymers that show desirable electronic properties such as conductivity. Unlike conventional inorganic conductors and semiconductors, organic electronic materials are constructed from organic (carbon-based) molecules or polymers using synthetic strategies developed in the context of organic chemistry and polymer chemistry.

Printed electronics

Printed electronics is a set of printing methods used to create electrical devices on various substrates. Printing typically uses common printing equipment suitable for defining patterns on material, such as screen printing, flexography, gravure, offset lithography, and inkjet. By electronic-industry standards, these are low-cost processes. Electrically functional electronic or optical inks are deposited on the substrate, creating active or passive devices, such as thin film transistors; capacitors; coils; resistors.

Flexible electronics

Flexible electronics, also known as flex circuits, is a technology for assembling electronic circuits by mounting electronic devices on flexible plastic substrates, such as polyimide, PEEK or transparent conductive polyester film. Additionally, flex circuits can be screen printed silver circuits on polyester. Flexible electronic assemblies may be manufactured using identical components used for rigid printed circuit boards, allowing the board to conform to a desired shape, or to flex during its use.

Materials science

Materials science is an interdisciplinary field of researching and discovering materials. Materials engineering is an engineering field of finding uses for materials in other fields and industries. The intellectual origins of materials science stem from the Age of Enlightenment, when researchers began to use analytical thinking from chemistry, physics, and engineering to understand ancient, phenomenological observations in metallurgy and mineralogy. Materials science still incorporates elements of physics, chemistry, and engineering.

Material

Material is a substance or mixture of substances that constitutes an object. Materials can be pure or impure, living or non-living matter. Materials can be classified on the basis of their physical and chemical properties, or on their geological origin or biological function. Materials science is the study of materials, their properties and their applications. Raw materials can be processed in different ways to influence their properties, by purification, shaping or the introduction of other materials.

Related lectures (56)

Thin-film transistors and flat-panel displays

Explores the history, applications, and technologies of thin-film transistors and flat-panel displays, including LCD, OLED, and advanced color e-paper.

Organic Electronic Materials: Field-Effect Transistors

Explores organic electronic materials, focusing on organic field-effect transistors (OFETs) and their operation, characterization, and real-world applications.

Flexible Probes: Mechanics and Design

Explores critical strain, bending mechanics, and strain calculation in flexible probes.

Introduction to Organic Electronic Materials and Devices

Introduces organic electronic materials, covering their properties, challenges, and applications in sustainable engineering and device fabrication.

Organic Electronic Materials