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05 June 2019 | Story Leonie Bolleurs | Photo Leonie Bolleurs
Lucas Erasmus and Prof Hendrik Swart
Lucas Erasmus and Prof Hendrik Swart (right) are working on a joint project with Ghent University to find an attractive solution to address the energy demands of buildings, electric motor vehicles, and mobile electronics.
With a constant increase in the price of electricity, any innovation to replace this necessity in our daily lives is welcome. 

The University of the Free State (UFS), whose vision is supported by an element of innovation, welcomes the recent agreement between its Department of Physics and Ghent University.

Attractive solution

Not only will this research – which aims to develop the materials necessary for transparent solar panels – enlarge the international research footprint of the UFS, but it is also an attractive solution to address the energy demands of buildings, electric motor vehicles, and mobile electronics without affecting their appearance.

According to Prof Hendrik Swart, from the UFS Department of Physics, the agreement between the two universities entails a joint doctoral degree in which both universities will supervise the project and the awarding of the doctorate. The student, Lucas Erasmus, will conduct research at both institutions.

Transparent solar panel

The idea with the research is to develop glass that is transparent to visible light, just like the glass you find in the windows of buildings, motor vehicles, and mobile electronic devices. However, by incorporating the right phosphor materials inside the glass, the light from the sun that is invisible to the human eye (ultraviolet and infrared light) can be collected, converted, and concentrated to the sides of the glass panel where solar panels can be mounted. This invisible light can then be used to generate electricity to power these buildings, vehicles, and electronic devices. The invention is therefore a type of transparent solar panel.

Implemented in cellphone screens

This technology can be implemented in the building environment to meet the energy demands of the people inside the buildings. 

The technology is also good news for the 4,7 billion cellphone users in the world, as it can be implemented in the screens of cellphones, where the sun or the ambient light of a room can be used to power the device without affecting its appearance. 

Another possible application is in electric cars, where the windows can be used to help power the vehicle.

Low-income housing

Erasmus added: “We are also looking at implementing this idea into hard, durable plastics that can act as a replacement for zinc roofs.” 

“This will allow visible light to enter housing, and the invisible light can then be used to generate electricity. The device also concentrates the light from a large area to the small area on the sides where the solar panels are placed; therefore, reducing the number of solar panels needed and, in return, reducing the cost.”

The technology will take about a decade to implement.

“This study is currently ongoing, and we are experimenting and testing different materials in order to optimise the device in the laboratory. After this, it needs to be upscaled in order to test it in the field. It is truly the technology of the future,” said Erasmus.

Video: Barend Nagel

News Archive

Visiting Professor, Piet Bracke, Speaks on Public Mental Health
2015-02-20

Piet Bracke

Professor in the Department of Sociology at the Ghent University in Belgium, Piet Bracke, recently visited the UFS to speak about his research on the Public mental health and comparative health research: between social theory and psychiatric epidemiology.

At the public lecture on Monday 16 February, Bracke stated that part of the sociological attention to mental health and well-being was rooted in the 19th century's romanticists' discontent with self and society. The classical and contemporary social theorists' views on the disconnection between culture and the ‘real’ self resembles the more recent evolutionary psychological assumptions about the maladaptation of  psychobiological mechanisms to contemporary societal arrangements.

In contrast to these perspectives, contemporary psychiatric epidemiological research has a strongly underdeveloped conception about the nexus between society and population mental health. Both perspectives, the social-theory-and-societal-discontent approach and the biomedical psychiatric epidemiological approach, have drawbacks. Starting from the pitfalls of the aforementioned perspectives, they have been exploring the challenges posed by the development of a macro-sociology of population mental health.

Recently, this research domain has received renewed attention of scholars inside as well as outside sociology. The rise of multi-country, multilevel datasets containing health-related information, as well as the growing attention on the fundamental social causes of health and illness, and the focus on population as opposed to individual health, has contributed to the revival of comparative public mental health research. Based on findings from their recent research, they have illustrated how taking the context into account is vital when exploring the social roots of mental health and illness. In addition, they have demonstrated how they can liberate a few so-called ‘control variables’ in risk factor epidemiology – e.g. gender, education, and age – from their suppressed status by linking them to core concepts of sociology. With their research, they hope to further the development of a macro-sociology of public mental health.

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