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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

Student leaders reflect on post-Holocaust Germany and make connections to post-apartheid SA in study tour
2015-12-08

Njabulo Mabaso
Photo: Sam Styrax

“Our beloved South Africa (SA) has done quite a lot insofar as policy formulation to address the past imbalances is concerned. However, implementation has proven to be the biggest challenge.”

This is the view held by Nkosinathi Tshabalala, former Student Representative Council (SRC): Religious Affairs at Qwaqwa Campus of the University of the Free State (UFS), who was part of the Global Leadership Study Tour.

From 14 - 22 November 2015, a cohort of 37 outgoing SRC members studied through tours and seminars in Germany and Poland. The historical education trip was organised jointly by UFS Rector and Vice-Chancellor, Prof Jonathan Jansen, and the Student Affairs office. The study tour was supported and facilitated by the Johannesburg Holocaust and Genocide Centre.

Tshabalala added: “We know the thinking behind the likes of Reconstruction and Development Programme and the Truth and Reconciliation Commission, to mention only two. But what have these done to close the gap between the rich and the poor? What have they done to encourage proper and complete reconciliation? Germany paid for the damages which came as a result of the Holocaust, and it is time that we do the same.”

Mosa Leteane, former SRC President of the Bloemfontein Campus, echoed Tshabalala’s sentiments as they relate to the SA experience. “In light of the Rhodes Must Fall movement, one of the things that the youth was looking at were the symbols, what symbols mean, how symbols works as part of reparation and redress in a country that has come from a tragic past,” she said.

Leteane identified similarities between how our country and the two European nations have confronted the issue of trans-generational trauma and the reconciliation process, albeit in significantly differing circumstances.

“Within the first 20 years or so, it was almost like SA. Nobody wanted to talk about it, people just wanted to build the country.” Nonetheless, “the memorialisation and commemoration happened only for the last 20 years or so,” added Leteane.

Transformation of the European political, environmental, and social landscape took place only when students and the second generation began to challenge the status quo, and to lobby for transformation through the erection of memorials and monuments. Owing to the courage of the young generation, those countries were able to take meaningful steps towards transformation through an accurate narration and commemoration of history, which is a key factor in reconciliation.

Our students had the opportunity to conduct a comparative study of post-Holocaust Germany and post-apartheid South Africa in terms of how government and universities dealt with trans-generational trauma.

By being exposed to remnants of what used to be sites such as the Auschwitz-Birkenau concentration camp memorial in Poland, the young leaders were encouraged to continue their attempt at nation building and advance transformation and reconciliation.


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