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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

Sought-after title warms heart doctor’s heart
2013-10-02

02 October 2013

Prof Stephen Brown was recently named as Ons Stad’s Bloemfonteiner of the Year, a title Prof Brown views as “one of the greatest moments” of his life.

Prof Brown, a cardiologist in the University of the Free State’s (UFS’) Department of Paediatrics and Child Health, has dedicated his life to children’s hearts ever since he qualified as paediatrician.

He is also involved in the teaching of under- and postgraduate students, as well as the training of doctors in paediatric cardiology. He is also jointly responsible for the planning and compilation of the undergraduate training programme for final-year students.

“This title is truly one of the greatest moments of my life. I feel humbled and impressed by the quality of the nominations for the title, which makes me feel small among the others.

“As physician I appreciate it even more, because this award means that the people of our wonderful city value the achievements and work of the doctors in our city – this warms my heart.”

Under Prof Brown’s leadership, Bloemfontein’s Paediatric Cardiology Unit is the only certified and recognised unit for pulmonary-valve implants in Africa.

The development of a local prenatal fetal heart screening and diagnostic programme, as well as adult congenital heart clinics, is due to his work and passion for his study field.

At the World Congress in 2013, he was involved as operator from South Africa in the first ‘direct telecast’ of children’s heart procedures.

“I hope that the award will help in our campaign to raise awareness in the community about children’s heart diseases.  They are, after all, the people I work for."

The UFS also congratulates Sheri Brynard on her nomination for the title. Paul Colditz, the winner for 2012, is also a UFS Board member.

 

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