Tutorials will take place on Sunday, June 28th.

"Printed Electronics from Nanomaterials: A Pathway to Ubiquitous Electronic Sensing"

Joseph Andrews, Ph.D.

Assistant Professor
University of Wisconsin-Madison

Abstract: As the connected future promised by the Internet-Of-Things expands, there is a need for ubiquitous electronic devices and sensors. New devices and sensors will need to possess a number of attributes including cost efficiency, flexibility, and the capability of operating in many environments. Printed electronics offers a pathway to enable novel form factor devices at low manufacturing costs. Additionally, recent developments in nanomaterial-based inks have facilitated the demonstration of innovative sensors able to operate in extreme environments. In this tutorial, I will present an overview of printed electronics from nanomaterials including a discussion of the printable materials and methods. I will then review sensor embodiments that have been enabled through printed nanomaterial thin films. This will include a discussion of two specific sensing systems: (1) a fully printed biological sensor capable of interrogating whole blood for a specific protein, and (2) a large-area tire tread-depth sensing array. I will conclude with a discussion on the outlook and challenges for the printed electronics field.

"Organic Narrowband Photodetectors: Materials, Devices and Applications"

Vincenzo Pecunia

Associate Professor and Principal Investigator
Institute of Functional Nano & Soft Materials, Soochow University, China

Abstract: Sensors that can detect the different “colours” of light in the visible, near-infrared (NIR), or ultraviolet (UV) range—i.e., narrowband photodetectors—are key to a broad range of applications, including emerging and rapidly evolving areas such as the Internet of Things, computer vision, and biomedicine. In recent years, narrowband photodetectors based on organic semiconductors have attracted ever-growing attention, as they provide a unique platform that overcomes many inherent limitations of conventional narrowband photodetector technologies. Importantly, due to their broad synthetic tunability, organic semiconductors offer practically limitless options in the spectral domain. Furthermore, their varied optoelectronic properties have enabled intriguing narrowband/ultranarrowband strategies, many of which have resulted in cutting-edge performance under several metrics.

This tutorial will provide a panoramic view of the exciting field of organic narrowband photodetection. The tutorial will firstly highlight the interplay among the unique properties of organic semiconductors, the specific narrowband strategies that they enable, and the performance metrics of the resulting photodetectors. These aspects will be covered in respect to all spectral regions—the UV, visible, and NIR ranges—in which organic narrowband photodetectors can deliver narrowband selectivity. Additionally, the significance of organic narrowband photodetectors will be contextualised against benchmark technologies. Finally, a discussion of device integration towards real-world applications will provide a concrete illustration of the remarkable technological potential of organic narrowband photodetectors.