ICCT 2022 Invited Speaker

Vincenzo Pecunia, Simon Fraser University, Canada


Prof. Vincenzo Pecunia is the Head of the Sustainable Optoelectronics Research Group at the School of Sustainable Energy Engineering, Simon Fraser University (Canada). His research covers environmentally friendly, printable semiconductors, their photoelectronic properties, and their applications in electronics, optoelectronics, and photovoltaics. Among his many research milestones, Prof. Pecunia has pioneered ultra-low-power electronics based on printed thin-film transistors, also demonstrating the ability to power such electronics using ambient indoor light via printable photovoltaics, thereby paving the way for printed, self-powered, IoT sensor nodes. In recognition of his contributions to the field, Prof. Pecunia is a Fellow of the Institute of Materials, Minerals and Mining (FIMMM) and a Senior Member of the Institute of Electrical and Electronics Engineers (SMIEEE).
Prior to moving to Simon Fraser University, Prof. Pecunia was at Soochow University for 5+ years. Before that, Vincenzo spent 6+ years at the Optoelectronics Group of the Cavendish Laboratory, University of Cambridge. Whilst there, he earned his PhD in Experimental Physics and worked as a Postdoctoral Research Associate under the supervision of Professor Henning Sirringhaus, FRS.
Prof. Pecunia has published in journals such as Nature, Advanced Materials, Advanced Energy Materials, Advanced Functional Materials, ACS Nano, and Nano Energy. Drawing from his research experience, Prof. Pecunia has also authored the books 'Organic Narrowband Photodetectors' (Institute of Physics Publishing, iopscience.iop.org/book/978-0-7503-2663-6) and 'Organic and Amorphous-Metal-Oxide Flexible Analogue Electronics' (Cambridge University Press, www.cambridge.org/pecunia).

Invited Talk Title
Printable Photodetectors Toward Easy-to-Fabricate Wearable Color Sensors

Abstract: Easy-to-fabricate, low-cost color sensors and imagers are in high demand for emerging applications in wearable electronics, machine vision, and smart devices for the Internet of Things [1], [2]. Organic photodetectors are uniquely positioned in this regard, given their facile processing via printing and coating and compatibility with flexible/stretchable substrates [3]. Moreover, the spectral tunability of organic semiconductors via chemical tailoring enables filter-free color detection, which paves the way for color sensor/imagers with simpler architectures and higher performance compared to conventional, silicon-based technologies [1], [3]. After introducing the capabilities and potential of wavelength-selective organic photodetectors for wearable color sensors, we will present our recent breakthroughs in this area. We will first discuss printable red- and green-selective photodetectors with cutting-edge performance in terms of photoconversion efficiency and specific detectivity [4]. Moreover, we will present the first-ever monolithic integration of a vertically stacked photodetector architecture based on printable semiconductors, which enables filter-free multicolor light sensing [5]. Building on these results, we will discuss the future potential of wavelength-selective organic photodetectors for wearable color sensors and imagers.