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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 a much safer place
2011-09-20

 
First-year students Chuma Nyiko (left) and Mabasa Teleni next to one of the red poles installed on our Bloemfontein Campus.
Photo: Amanda Tongha

Students and staff at our Bloemfontein Campus can feel even safer, with several initiatives being put in place to ensure their safety.

The stop-and-search actions of the recent past, which are being carried out at all the main gates of our Bloemfontein Campus, seem to be successful, since car theft has decreased on the campus. Mr Willie Frankim, Head of Protection Services, says the stop-and-search actions are carried out sporadically, but have a definite effect on crime at the campus. Mr Frankim says only one vehicle has been stolen in the past two months as opposed to the many more that have been stolen in the past.

The message that safety is viewed in a serious light reaches as far as our university’s parking areas and walkways, which are being patrolled by security staff. Mr Frankim says a security officer is placed in all the large parking areas, while other personnel are distributed across the entire campus, especially at key areas, such as at the library and student centre.

Our university also recently installed more than 30 red poles across the entire campus. Each of these red poles is fitted with a panic button by means of which help can be summoned. Should a student or staff member feel unsafe, all they have to do is press the button and cameras, which are installed in the vicinity, will focus on the pole and Protection Services will send assistance. Twenty five of these poles are already working and ten more still have to be activated.

Students and staff can also phone Protection Services on 051 401 2911 if they feel uncomfortable about their safety. They can use this number, for example, to ask a security officer to accompany them to their car.
 

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