Slow excitonics for minimalistic and sustainable photonic and optoelectronic systems

Introduction

Modern technology should not only provide improved efficiency but follow sustainable and minimalistic design principles for an optimized ecological footprint. Photonic applications, e.g., used for information processing in logistics or sensor systems, currently require more and more complex technological solutions to speed up data storage and processing while creating non-recyclable waste. SLOWTONICS aims at providing a paradigm shift based on biocompatible organic optoelectronic and photonic components.

Design Principles

The design principle of digital luminescence developed in my research group combines easily processable excitonic states at long lifetimes (> 1 µs) with a programmable oxygen-based switch of the luminescence to create a unique programmable photonic framework.

Advantages of Organic Semiconductors

By using organic semiconductors, such systems offer:

• A low ecological footprint
• Small material consumption
• A high degree of material tuneability for tailor-made technological solutions

Prototypes and Applications

First prototypes of programmable luminescent tags have demonstrated the potential of this technology yet are missing the requirements for industrial application. Based on the existing expertise of my research group in the fields of organic optoelectronics and spectroscopy of soft luminescence materials, SLOWTONICS will overcome current limitations to realize industry-relevant systems for optical data storage and exchange.

Future Directions

Additionally, we aim to extend the application of digital luminescence towards:

1. Luminescent security labels
2. Multi-component sensor systems

Once we have developed novel communication components, we will attempt to realize these designs made only from materials found in nature.

Conclusion

This is an essential ultimate step because a world with an ever-growing demand for information requires systems that provide functionality and allow for responsible use. Our approach aims at systems that have material footprints of < 0.1 mg/system, making them truly minimalistic and sustainable.