Development of organic passive devices for RF applications

TL;DR

This paper presents the development and characterization of organic passive RF devices, including filters and sensors, fabricated via fully screen-printed processes on flexible substrates, advancing organic electronics for RF applications.

Contribution

It introduces a complete set of organic passive devices and demonstrates their application in RF filters and RFID sensors, filling a gap in organic electronics technology.

Findings

Successfully fabricated RLC low-pass filters at 1GHz.

Developed a flexible RFID sensor using organic passive components.

Demonstrated the viability of organic passive devices for RF applications.

Abstract

A huge interesting progress in the field of organic electronic materials and devices has been observed in the last decade. However, the understanding of these materials is still a challenge to overcome. Most studies in literature focus on active devices such as OTFTs, OLEDs and OPVs. Nevertheless, a complete technology has to have also passive devices in order to allow the design of interesting applications and complex circuits. This paper deals with the development of a complete set of passive devices allowing the fabrication of simple applications such as filters or sensors. The process flow is a fully screen printed technology that uses exclusively organic materials on gold laser ablated flexible substrate. Discrete passive (R, L, C) devices have been processed and characterized. This has permitted the fabrication of RLC low-band pass filters that are dedicated to RF applications, typically around 1GHz. Furthermore, based on these discrete passive components, we have developed a sensitive sensor on flexible substrate for RFID applications. We present the state of the art of our process development for RF applications using organic materials.