Dr John Kennedy

Associate Investigator

Phone: +64 4 570 4771
Postal Address:
National Isotope Centre, GNS Science,
30 Gracefield Road, P O Box 31312,
Lower Hutt, 5010.New Zealand.

John Kennedy is an ion beam physicist who works on new materials development and ion beam analysis for advanced materials, biology, geology and environmental applications.   His main area of research interest is condensed matter physics with particular focus on coatings and surface modification. He is currently investigating metal and metal oxide nanoparticle growth and their structural, electrical, optical and magnetic properties.  John leads the GNS Science core science programme of ion beam applications which focuses on research and development of ion beam technology for industry and environment sectors.  



Research Interests

Metal and metal oxide nanoparticles show unique electronic, optical and magnetic properties that are desirable for applications in sensors, optical devices and the electronics industry.  In our group, we are working to understand the fundamental mechanism of these nanoparticle growth and their remarkable properties so that they can be tailored for the specific applications.  



Associated Content


Peter Murmu talks about his experience with the MacDiarmid Institute

Dr Peter Murmu was an MSc student at the Indian Institute of Technology in Bombay when he was offered a PhD scholarship from GNS Science and Victoria University of Wellington. He says he was drawn to New Zealand in part because it was the birthplace of Ernest Rutherford. “I had heard about New Zealand before […]


The Christmas Wrap

We’ve had another big year. We welcomed two new Deputy Directors Profs David Williams (UoA) and Alison Downard (UoC) (Shaun Hendy stepping down at the end of last year and Simon Brown at mid year). We also welcomed six new Principal Investigators (Natalie Plank (VUW), Cather Simpson (UoA), John Kennedy (GNS), Duncan McGillivray (UoA), Bernd […]


MacDiarmid Investigators success with MSI bids

Congratulations to the following MacDiarmid Institute Investigators named on awarded MSI grants, in no particular order:   New Cathodes, $964,050 over 2 years: Simon Hall (Lead Scientist, MU) Magnetic Devices, $3.9 m over 4 years: John Kennedy (Co-Lead Scientist, GNS) and Simon Granville (IRL) [Grant co-lead with Nick Long, IRL] Laser Micromachining, $7.8 m over […]

A Material World

John Kennedy is the father of two daughters, aged nine and five, and because I am ringing on the weekend, their cheerful voices can be heard throughout our conversation.
“I told them I had an appointment, but they still want me to play with them,” he says, laughing. Kennedy moved to New Zealand in 2001, and […]