# The Role of Interdigitated Electrodes in Printed and Flexible Electronics

## TL;DR

This paper reviews how interdigitated electrodes are used in flexible electronics for various sensor applications and their potential future growth.

## Contribution

The paper provides a comprehensive review of the role and benefits of interdigitated electrodes in flexible electronics.

## Key findings

- Interdigitated electrodes offer benefits like high output voltage and material imaging capability.
- They are being increasingly used in sensor applications due to their functional advantages.
- The paper anticipates continued growth in the use of interdigitated electrodes in future flexible circuits.

## Abstract

Flexible electronics, also referred to as printable electronics, represent an interesting technology for implementing electronic circuits via depositing electronic devices onto flexible substrates, boosting their possible applications. Among all flexible electronics, interdigitated electrodes (IDEs) are currently being used for different sensor applications since they offer significant benefits beyond their functionality as capacitors, like the generation of high output voltage, fewer fabrication steps, convenience of application of sensitive coatings, material imaging capability and a potential of spectroscopy measurements via electrical excitation frequency variation. This review examines the role of IDEs in printed and flexible electronics since they are progressively being incorporated into a myriad of applications, envisaging that the growth pattern will continue in the next generations of flexible circuits to come.