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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

Faculty of Theology hosts annual meeting of Society for Practical Theology
2015-01-30

From the left are: Prof Yolanda Dreyer (Chairperson of SPTSA, University of Pretoria), Prof Johann Rossouw (UFS), Prof Hussein Solomon (UFS) and Prof Johan Cilliers (Stellenbosch University).
Photo: Michelle Nothling

The privilege of hosting the annual meeting of the Society for Practical Theology in South Africa (SPTSA) fell to the University of the Free State (UFS) this year. Delegates from across the country recently convened on the Bloemfontein Campus to attend the event from 21 – 23 January 2015.

The three-day congress saw several high-profile keynote speakers discussing the topic of ‘Power of religion and religions of power’.

Dr Johann Rossouw from the UFS Department of Philosophy presented a paper on ‘Power, the state and the church in South Africa’. Dr Rossouw regards the cooperation between theologians and philosophers as integral to help us understand the time we live in. Twenty years since the dawn of South Africa’s democracy, “the gap between the country we were promised and the country we received is bigger than ever,” Dr Rossouw said. “A South-African Church … cannot but make her voice heard regarding this gap.”

Expert on conflict resolution and fundamentalism, Prof Hussein Solomon from the UFS Department of Political Studies and Governance scrutinised the compatibility of Islam with democracy. He warned, though, against “the labelling of a conflict as religious on the mere basis of its religious overtones.” Prof Solomon’s paper, ‘Political Islam: trends, trajectory and future prospects,’ not only advocated tolerance and political pluralism, but also pointed to the fact that it is “in the common good of all humanity” to avert a “Clash of Civilizations”.

‘God in granite?’ – Prof Johan Cilliers’ paper – investigated the phenomenon of the monumentalization of religion. Prof Cilliers from Stellenbosch University explained that monuments often have “spiritual character and iconic value, in the sense that it offers a space for the formation or discovery of meaning.” In his presentation he showed, though, that monuments – even those connected to religious motifs – “seldom escape the lure of power”.

The event was organised by the University of the Free State’s Faculty of Theology, Department of Practical Theology.

  

For more information or enquiries contact news@ufs.ac.za .

 

 

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