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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

UFS academic delivers inaugural lecture on challenges confronting political science in the 21st century
2012-10-12

Prof. Hussein Solomon.
Photo: Stephen Collett
12 October 2012

This week Prof. Hussein Solomon, Senior Professor in the Department of Political Studies and Governance delivered his inaugural lecture on the Bloemfontein Campus of the University of the Free State (UFS).

In his lecture, “Challenges confronting political science in the 21st century, A South African perspective”, Prof. Solomon explored five challenges to academic political science in general and to South African political scientists in particular.

The challenges include the need to localise international relations theory with an emphasis on the emancipatory dimensions; exploring the nexus between technology and politics; incorporating political anthropology into mainstream political science syllabi; rising to the challenge of governing Africa’s cities; and the dangers of over-specialisation in an era that demands the use of a broader academic lens.

According to Prof. Solomon, political science has come a long way from those heady days in 1950 when Lasswell could confidently state that politics was about who gets what, when and how.

“Indeed, the world of 2012 scarcely resembles the world of 1950. Immanuel Wallerstein was correct in his assessment that the modern world system is coming to an end. As political scientists, we need to interrogate our existing knowledge constructs in relation to this rapidly changing reality. We need to indigenise international relations theory and emphasise creating an emancipatory and counter-hegemonic discourse.

We need to explore the nexus between technology and politics to deepen our democracy by empowering the margins in our societies. We need to embrace political anthropology as we strive to understand non-Western forms of governance. We need to use these understandings of traditional societies as we create hybrid forms of urban governance that stress inclusivity as we overcome the politics of identity and difference. We need to heed the call of De Tocqueville and create a new political science to understand the new times by supplementing disciplinary insights with those from other disciplines. In doing so, political science will once more regain its relevance to humanity in the twenty-first century,” Prof. Solomon said.
 

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