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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

First Black Rag Queen wants to give voice to voiceless
2017-02-22

Description: Coronation ball 2017 Tags: Coronation ball 2017

The winners of the 2017 Amanzi Coronation
ball are, from the left: Devina Harry,
Second Princess; Kgomotso Sebusi,
First Princess; Prudence Mahlaba, Rag Queen;
Suhail Peerbhai, Mr Rag; Jordan Nadasen,
First Runner-up; and Mohlale Matlala,
Second Runner-up.
Photo: Gerhardus Bosch


“It is true what they say about your purpose driving you towards your goal. The ride to eventually becoming the first black RAG Queen was motivated by a pure desire in my heart to help other people.”

This is the moving words of Prudence Mahlaba, who was crowned Rag Queen at the Amanzi Coronation Ball on Friday 17 February 2017. Suhail Peerbhai, a second-year BCom Economics student, was crowned Mr Rag 2017.

Giving a voice to the voiceless
Mahlaba says she wants to make a positive impact, “not only on the less fortunate, but also on the voiceless.” The fourth-year LLB student strives to adhere to the vision of the acronym RAG (Receive and Give). RAG is mainly about a good cause in order to make a difference.
“It is beauty with a purpose, practising what you preach, and doing unto others what you want them to do unto you,” Mahlaba said.

It was a night of glitz and glamour as the finalists made a last bid for the sought-after titles at the prestigious event held at the Student Church on the Bloemfontein Campus of the University of the Free State.

Role provide foundation for change
“Becoming Mr Rag is an exceptional feeling; however, this role entails much more responsibility,” Peerbhai said. “At a time like this, it has given me a solid foundation to make a difference in communities that are less fortunate.”

His advice to future participants in the contest is, “to go for it, since it entails the most life-changing challenges students in our era can face. No classroom teachings can provide you with the same values and experiences.”

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