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28 June 2022
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Story Nonsindiso Qwabe
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Photo ALBERT VAN BILJON
In conversation: Prof Petersen and Leanne Manas.
An outward-looking, globally competitive university that ranks among the top-tier universities in South Africa and on the continent, driven by a strong human-centred, diverse social-justice approach. This is at the heart of the vision
Prof Francis Petersen, Rector and Vice-Chancellor of the UFS, shared with multi-award-winning
news anchor
Leanne Manas during a sit-down conversation on Friday 22 July 2022.
Prof Petersen reflected on the great strides and difficulties faced during his first term, as well as navigating the UFS through the COVID-19 pandemic to position the institution in a strategic and focused manner as a university of choice on the continent
and in other parts of the globe.
Prof Prakash Naidoo, Vice-Rector: Operations, introduced Leanne Manas
Prof Francis Petersen
Leanne Manas and Prof Petersen In conversation
Leanne Manas
Leanne Manas meeting our staff members.
Leanne Manas meeting our staff members.
Leanne Manas meeting our staff members.
Prof Petersen with some of our staff members
From the left; Prof Prakash Naidoo, Leanne Manas, Prof Francis Petersen and Temba Hlasho, Executive Director: Student Affairs
Leanne Manas meeting our staff members.
From the left; Prof Prakash Naidoo, Prof Francis Petersen and Quinton Koetaan, Senior Director; HRA
Leanne Manas meeting our staff members.
UFS Physics Research Chair receives more funding
2017-11-20
Prof Hendrik Swart, Senior Researcher Professor in the
Department of Physics at UFS.
Photo: Charl Devenish
A research project into low-energy lighting using phosphor materials for light emitting diodes (LEDs) at the Department of Physics at the University of the Free State (UFS) has received further recognition.
The South African Research Chairs Initiative (SARChi) has awarded further funding for the Research Chair in Solid State Luminescent and Advanced Materials situated in the department. Prof Hendrik Swart, a Senior Research Professor in the Department of Physics, says this means that the Chair will carry on receiving funds from SARChi for another five years. The Initiative also awarded Prof Swart in 2012 for the research, which resulted in funding for equipment and among others, bursaries.
Better light emission in LED’s
The research focuses on better light emission of phosphor powers in LEDs. It is also looking into improving LED displays in flat screens. The research into solar cells has shown that phosphors can also increase their efficiency by increasing the range of light frequencies, which convert into electricity. It also entails that glow-in-the-dark coatings absorb light during the day and emit it at night.
Prof Swart says over the next five years the research will focus on developing and producing devices that emit better light using the substances already developed. “We need to make small devices to see if they are better than those we already have.” In practical terms, it means they want a farmer’s water pump that works with solar energy to work better with less energy input.”
Device that simulates sunlight
Prof Swart says the renewal of the Chair’s funding means the department can now get equipment to enhance its research such as a solar simulator. The solar simulator uses white LEDs whose intensity output and wavelengths can be tuned. The output is measured in number of suns. It enables researchers to work in a laboratory with a device that simulates sunlight.
According to Prof Swart the long-term benefit of the research will result in more environmentally friendly devices which use less energy, are brighter and give a wider viewing field.
About 10 postdoctoral researchers are working on the studies done by the Chair in collaboration with the Council for Scientific and Industrial Research.
The Research Chair Initiative aims to improve the research capacity at public universities to produce high-quality postgraduate students, research and innovative outputs. The criterion for evaluating the department’s Chair includes aspects such as how much development has occurred over the past five years. The assessors look at features such as the number of students the research entity has trained and how many publications the research team has produced.