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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

UFS law students sit in on exceptional case in the Supreme Court of Appeal
2011-09-21

 
At the Supreme Court of Appeal were, from left to right: Dr Beatri Kruger, lecturer in our Department of Criminal and Medical Law at the Faculty of Law; Adv. Ann Skelton, Amicus Curiae instructed by the Restorative Justice Centre; Ms Matsepo Soko, post-graduate student in Criminal Law; and Prof. Annette van der Merwe from the University of Pretoria.
Photo: Leonie Bolleurs

Fourth-year and master’s-degree students, from our Faculty of Law, had the privilege of attending the hearing of one of their prescribed cases in the module, Criminal Law, namely the State versus Tabethe, in the Supreme Court of Appeal. Apart from the fact that they could attend the hearing, the students were also addressed by experienced legal experts, Adv. Ann Skelton (amicus curiae, instructed by the Restorative Justice Centre) and Prof. Annette van der Merwe from the University of Pretoria, on the broad outlines of the case.

In this case, the accused was found guilty of raping his fifteen-year-old stepdaughter. The court imposed a sentence of ten years’ imprisonment, suspended in full, but with certain conditions. The conditions include 800 hours’ community service and stipulate that the accused has to follow a rehabilitation programme and that he has to give 80% of his income to the family in order to support the victim and her family.
 
This was the first rape case where, in following a restorative justice approach, exceptional conditions were imposed to address the interests of the victim who wants to proceed with her studies. The State appealed against the sentence.
 
Dr Beatri Kruger, lecturer in our Department of Criminal and Medical Law, who prescribed this case for the students, said, ‘The law students were indeed privileged to attend this auspicious and enriching occasion, which provided them with an insightful experience of how the law works in practice.’

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