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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

Tough future if nothing changes in Africa
2015-02-20

 

The Department of Political Studies and Governance at the UFS recently hosted a workshop with the Osaka School for International Public Policy and the Southern African Centre for Collaboration in Peace and Security Studies.

The workshop, which was held on Thursday 12 February, had the theme of Perspectives on African Peace and Security. During workshop sessions, thoughts and views on peace and security were discussed for both African and South African circumstances. This was the fourth year of this joint workshop at the UFS.

Prof Hussein Solomon from the Department of Political Studies and Governance at the UFS shared some notes:

“In terms of South Africa, the fact that only 11% of South Africans have a post-school education holds negative prospects for us attaining a so-called ‘knowledge economy’”, says Prof Solomon.

“This also means that unemployment will continue to remain high since, in certain key areas, the South African economy is quite sophisticated, and needs a sophisticated labour force. Therefore, high unemployment translates into further social unrest, especially if one considers that youth unemployment is approaching 50%.”
 
Moving to broader issues in Africa, Solomon states that governance remains a challenge.

“There is a need to move away from Eurocentric forms of governance to more hybrid forms, implementing a mix of western forms of governance alongside more traditional forms.”

“Otherwise, the probability of conflict remains high as we look into the future. The possibility of water wars between African states is distinct.”

“Terrorism too will be with us for some time to come, with three terrorist attacks per day in Africa. Making matters worse, whether it is conflict over water or terrorist atrocities, is the African Union’s inability to resolve these issues. It simply does not have the capacity”, says Solomon.

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