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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

“I, too, am an African,” says visiting US drama professor
2013-03-06

 
Africans are of blood and of soil, says Prof Charles Dumas in his inaugural lecture at the UFS. Speaking on the topic I, too, am an African, Prof Dumas reminisced about his life and experiences on the continent.
Photo: Minette Grove
05 March 2013

Lecture (pdf)

What is an African? Is it those born in Africa, defined in racial and genealogical terms, or those who identifies with the continent in nationality and ancestral location? Did the descendants of enslaved Africans in the US, the Caribbean or Brazil lose their Africaness when their ancestors were put on slave ships to the New World?

These were some of the questions raised by Prof Charles Dumas, visiting senior professor in the Department Drama and Theatre Arts, in his inaugural lecture at the university.

Proclaiming attachment to the continent, Prof Dumas told his audience there are two types of Africans: Africans of the blood and Africans of the soil. In a speech titled, “I, too, am an African,” he stated that he lay claim to his ancestral birthright not because of blood relationship to an identifiable ethnic group or birthright to the continent, but because he earned it.

“I suggest another way that one can be an African, is through trial and struggle to be reborn an African in spirit. It is a ritual journey that may be taken by anyone. For, after all, if we are to believe the anthropologists who tell us that human life as we know it began in the Olduvai Gorge, genetically we are all African in origin.”

Prof Dumas, a senior professor at Penn State University in the USA, took the audience on a journey of his experiences on the continent, starting in 1978 when he first came to South Africa as a legal observer. Noticing the changes between Apartheid and today’s South Africa, he said this generation are committed to learn from each other – and that is the most important, he said.

“With their hopes and aspirations they earnestly desire to live in the new South Africa that we promised them. We must support them in their effort. It is time we stored our old baggage in the closet.”

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