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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

Afrikaans place names were not only given by Afrikaner people, says professor.
2012-09-25

Prof. Peter Raper delivering his lecture on South African place names.
25 September 2012

 Prof. Peter Raper, honorary professor at the Department of Linguistics and Language Practice, delivered a public lecture in Clarens earlier this month. The theme of the lecture was “From Stone Age to GPS: The fourth edition of the South African Place Names Dictionary”.

Prof. Raper shared the historical development of the project as well as the challenges and other interesting observations associated with the topic. He elaborated on the dramatic change in the focus of his research on place names in South Africa.

It was previously assumed that all of the Afrikaans place names were given by the Afrikaner people and that changing these place names was consistent with the mandate of the South African Geographical Names Council (SAGNC) to transform place names. Prof. Raper said more in-depth research revealed that a significant number of place names are actually translations of original San names – into Afrikaans, Khoi and the Bantu languages. He told the audience that given the constitutional stipulation that no cultural group’s heritage may be removed, this discovery calls into the question the modus operandi of the SAGNC.

Prof. Raper’s lecture was part of the conference programme of the Third International MIDP IV Symposium that took place on the Qwaqwa campus. The MIDP (Multilingual Information Development Programme) is a project sponsored by the Province of Antwerp. The theme for this year’s symposium was “Multilingualism for Empowerment” and was presented in collaboration with the University of Antwerp.

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