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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

Breyten Breytenbach shares his words and philosophies
2013-03-05

 

Breyten Breytenbach
Photo: Johan Roux
02 March 2013

The Department of Philosophy at the University of the Free State (UFS) recently hosted Breyten Breytenbach as part of its Colloquium series.

In a packed Odeion theatre, Breytenbach shared his words and views relating to poetry and philosophy. The session was chaired by Prof Pieter Duvenhage from the Department of Philosophy, who noted the symbiotic relationship which exists between the two seemingly distinct disciplines.

Breytenbach is one of South Africa’s best-known literary sons, gaining worldwide recognition for his writings and poetry, as well as his political activism against the erstwhile Apartheid regime. He left the country in 1960 due to Apartheid and settled in Paris where his first collection of poetry was published in 1964. It was the beginning of a prizewinning literary career spanning multiple languages and decades.

He returned illegally in 1975 in order to agitate against the repressive National Party government, but was arrested, spending seven years in prison after being charged with terrorism.

The audience was treated to a reading from an unpublished work from Breytenbach, A letter to my daughter. The lengthy letter outlined Breytenbach's world views, his sense of the creative process, his philosophies and his takes on current and historical events.

A large part of the letter focused on the philosophical and emotional processes involved in writing.“Writing is the travelling of its own landscape; landscapes and rooms that may always have been there,” he said.

He noted that it’s not always an easy process, and that sometimes writers need to explore the abysses, which can be unnerving.

“In this regard it is important to know that emptiness exists,” he said.

He stressed his concern over some of the problems the country currently faces, especially the abuse of state institutions. He was especially worried about the abuse of power. He warned that “power has its own predatory identity,” often abused and misused by those who wield it.

Despite his misgivings, Breytenbach still retains his optimism for the country and its people. He remarked that the country and its many diverse cultures resembles a “fantastic patchwork blanket,” one that should be cherished and protected.

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