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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

Prof Antjie Krog speaks on verbalising revulsion and the collusion of men
2015-06-26

From the left are Prof Lucius Botes, UFS: Dean of the Faculty of the Humanities; Prof Helene Strauss, UFS: Department of English; Prof Pumla Gobodo-Madikizela, UFS: Trauma, Forgiveness and Reconciliation Studies; Prof Antjie Krog, UCT: Department Afrikaans and Dutch; Dr Buhle Zuma, UCT: Department of Psychology. Both Prof Strauss and Dr Zuma are partners in the Mellon Foundation research project.

“This is one of the bitterest moments I have ever endured. I would rather see my daughter carried away as a corpse than see her raped like this.”

This is one of 32 testimonies that were locked away quietly in 1902. These documents, part of the NC Havenga collection, contain the testimonies of Afrikaner women describing their experiences of sexual assault and rape at the hands of British soldiers during the South African War.

This cluster of affidavits formed the foundation of a public lecture that Prof Antjie Krog delivered at the University of the Free State’s (UFS) Bloemfontein Campus on Tuesday 23 June 2015. The lecture, entitled ‘They Couldn’t Achieve their Goal with Me: Narrating Rape during the South African War’, was the third instalment in the Vice-Chancellor’s Lecture Series on Trauma, Memory, and Representations of the Past. The series is hosted by Prof Pumla Gobodo-Madikizela, Senior Research Professor in Trauma, Forgiveness, and Reconciliation Studies at the UFS, as part of a five-year research project funded by the Andrew W. Mellon Foundation.

Verbalising revulsion

The testimonies were taken down during the last two months of the war, and “some of the women still had marks and bruises on their bodies as evidence,” Prof Krog said. The victims’ words, on the other hand, struggled to express the story their bodies told.

What are the nouns for that which one sees? What words are permissible in front of men? How does one process revulsion verbally? These are the barriers the victims – raised with Victorian reserve – faced while trying to express their trauma, Prof Krog explained.

The collusion of men

When the war ended, there was a massive drive to reconcile the Boers and the British. “Within this process of letting bygones be bygones,” Prof Krog said, “affidavits of severe violations by white men had no place. Through the collusion of men, prioritising reconciliation between two white male hierarchies, these affidavits were shelved, and, finally, had to suffer an embargo.”

“It is only when South Africa accepted a constitution based on equality and safety from violence,” Prof Krog said, “that the various levels of deeply-rooted brutality, violence, and devastation of men against the vulnerable in society seemed to burst like an evil boil into the open, leaving South African aghast in its toxic suppurations. As if, for many decades, we did not know it was there and multiplied.”

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