Dr Matthew Griffith
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Dr Matthew Griffith

Research Manager
Australian Centre for Microscopy &
Microanalysis
Dr Matthew Griffith

Dr Matthew Griffith grew up in the rural Australian town of Orange. He studied chemistry, physics and materials engineering at the University of Wollongong, graduating with a Bachelor of Nanotechnology in 2007. In 2012, he was awarded a PhD in Chemistry, also from the University of Wollongong. The next few years were spent working as a NEDO Fellow at Shinshu University in Japan, before returning to Australia and becoming a Lecturer in Physics at the University of Newcastle, where he still holds a Conjoint appointment. He is currently working as a Research Manager in theSchool of Aerospace, Mechanical and Mechatronic Engineering, and is leading research efforts with biomedical applications of organic semiconductors at the Australian Centre for Microscopy and Microanalysis.

Dr Matthew Griffith sees a future that uses electronic devices to sense the world around us and then interface with and control functionality in the human body.

A continuing theme of Dr Griffith's research since he received a PhD in physical chemistry from the University of Wollongong has been the links between molecular structure and electronic functionality in organic and inorganic semiconducting devices. His research spans a broad area of applications, from the fundamental science of optical processes and charge carrier behaviour in semiconductors to the fabrication of printed sensors and bioelectronic devices on the roll to roll scale for Australian industry.

"I've been fascinated with organic semiconductors since I first heard about them in 2004. These materials combine the electronic properties of semiconductors with the easily tuneable properties of chemical inks and the soft mechanical properties of organic matter. This unique combination offers several exciting opportunities for a new generation of smarter electronic devices. Imagine a world where we can simply print electroactive devices on demand onto flexible substrates using low cost Australian manufacturing tools."

"Not only can these devices do everything the previous generation of semiconductors could do, like creating solar cells to address energy issues, or sensors for enabling industry 4.0, but because they are organic, they are the first electronic materials we've ever had that can seamlessly integrate with the human body. It's a truly exciting world that these organic semiconductors can open up for us. But before we can achieve this vision, we first must understand how these materials work. Or perhaps more importantly, how we can control them! Improving this understanding has been at the heart of my research activities over the past decade."

The research of Dr Griffith is at the nexus between chemistry, physics, and biomedical engineering. This allows him to pursue a passion for working with multidisciplinary teams, using an outstanding array of state-of-the-art equipment.

"I love working in teams with other scientists and engineers. This allows me to draw inspiration from the world-class mentors I've been lucky enough to work under and the next generation of emerging research leaders that I supervise. It's also proven to be the fastest way to innovate and connect all the dots throughout my career."

Dr Griffith’s latest research interests include two major focuses. Firstly, he is working on applied efforts to translate his printed electronic solutions to Australian industry. Secondly, he is investigating more fundamental research to understand the unique conduction mechanisms in organic semiconductors, which involve both ionic and electronic transport, and how these can be used to communicate with sensory neurons in the human body.

"The ability to transfer fundamental physical stimuli such as pressure, light and chemical reaction products into electrical signals using a low cost printed organic semiconductors has proven to be a major technological breakthrough. This has allowed me to work with several industry partners to deploy the technology in the real world. But I also have a passion for unlocking the full potential of these materials, and I believe that future is moving towards integrating the world of biology with the world of digital electronics. The human body uses sensory neurons, which operate through the exchange of both ions and electrons, to communicate with the brain. The carbon-based organic semiconductors I've been developing over the past decade offer a revolutionary platform that are also uniquely capable of both ion and charge transport. Furthermore, these soft and pliable organic semiconductors are seamlessly biocompatible with the soft carbon-based tissue of the human body."

"I joined the University of Sydney in 2020 because of its innovative culture, its leading role in Australian research excellence and the outstanding people and state-of-the-art tools at the Australian Centre for Microscopy and Microanalysis. I am grateful for the University's incredible research environment, and excited to see how far we can push the boundaries of electronic technology here at the University of Sydney."

Printable Artifical Retinas: Restoring Colour Selective Vision Using Organic Semiconductors

Nasal Drug Delivery for Glioblastoma Treatment Using Organic Semiconducting Nanoparticles

X-ray Detection Using Organic Semiconductors: Towards Tissue Equivalent Detection

Understanding the Organic Semiconductor Neural Interface Using Nanoscale Characterisation

Materials and structures, Biomedical engineering and technology, Clean energy

Publications

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