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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

In her inaugural lecture, Prof Helene Strauss explores symbols that reflect our history
2014-02-18

 

Prof Helene Strauss
The burning tyre – image of promise and disappointment
Photo: Stephen Collett

Prof Helene Strauss did not disappoint in her highly-anticipated inaugural lecture “The Spectacles of Promise and Disappointment: Political Emotion and Quotidian Aesthetics in Post-transitional South Africa”. She posed some very challenging ideas on the promises and disappointments that arouse from apartheid. Prof Strauss pointed to the fact that “… a promise must promise to be kept; that is, not to remain spiritual or abstract, but to produce events, new effective forms of action, practice, organisation, and so forth.”

She underscored the message of her lecture by making use of the image of a burning tyre – a symbol commonly associated with apartheid. This act of ‘necklacing’ is closely connected to the violence and protests of that era. Prof Strauss used this image to represent an array of social concerns: global mass protest, modernity and mobility, waste economies and waste management, environmental destruction, as well as poverty and resistance in varied formats.

Some of South Africa’s greatest artists have used the burning tyre in their work, particularlyBerni Searle and Zanele Muhloi. Not only does it trigger the shadow of the damaging past, but “more recently, it has come to figure also in the spectacles of promise and disappointment that have marked the country’s transitional and post-transitional periods,” Prof Strauss remarked.

Prof Strauss focuses her research on these symbolisms in our history because of “the questions that they raise about the emotional cultures produced in the aftermath of apartheid and for the unique contribution that they make to current debates on political and aesthetic activism.”Her passion for this subject comes from the “affective or emotional legacies of various forms of structural inequality, an interest that owes a sizeable debt to postcolonial, queer and feminist critical theory and creative work of the past hundred or so years.”

Prof Strauss accepted a position at the University of the Free Sate in 2011 and currently works in the Department of English. She is part of the Vice-Chancellor’s Prestige Scholars Programme and holds a PhD from the University of Western Ontario. Previously, she held the position of Assistant Professor in the Department of English and Cultural Studies at McMaster University in Canada, where she resided for 11 years.

Among the guests were Prof Jonathan Jansen, Profs Botes and Witthuhn, lecturers in the Department of English, members of the Faculty of the Humanities, students and some of Prof Strauss’ colleagues from Canada.

 

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