Mr William Pappas | ARC Centre of Excellence in Exciton Science

Mr William Pappas

PhD Student

Billy is a postgraduate student at the University of New South Wales currently undertaking a PhD in experimental condensed matter physics with Professor Dane McCamey.

His primary interests lie in understanding the interactions between microscopic spins in organic semiconductors and the effect they have on the opto-electronic processes in these devices. To achieve this, he utilises a novel imaging technique to measure the spatial variation and correlation of spin-dependent properties in organic light emitting diodes in order to reveal the role of spin in the charge-to-light conversion process. These investigations aim to characterise quantum properties localised in the thin organic films to enable additional device functionality in the form of magnetic field sensing.

Qualifications: 
BSc (Hons), University of New South Wales, Australia (2017)
Centre Research: 

Spatially resolved magnetic resonance measurements primarily in organic light emitting diodes in order to better understand magnetic field effects in these devices.

Centre Research Themes: 
2. Control of Excitons

Publications

Conference Papers
Pappas, W. J.; Geng, R.; Mena, A.; Baldacchino, A.; Asadpoordarvish, A.; McCamey, D. R.; Lee, T. - W.; So, F.; Adachi, C. Imaging the microscopic variation in spin properties of organic light emitting diodes. In Organic and Hybrid Light Emitting Materials and Devices XXV; Organic and Hybrid Light Emitting Materials and Devices XXV; SPIE: San Diego, United States, 2021. doi: 10.1117/12.2603441,10.1117/12.2603441.6265904439001
Journal Articles
Pappas, W. J.; Geng, R.; Mena, A.; Baldacchino, A. J.; Asadpoordarvish, A.; McCamey, D. R. Resolving the Spatial Variation and Correlation of Hyperfine Spin Properties in Organic Light‐Emitting Diodes. Advanced Materials 2022, 34 (11), 2104186 DOI: 10.1002/adma.202104186. doi: 10.1002/adma.202104186