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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

Food insecurity at university campuses a growing threat
2015-07-28

Food insecurity on university campuses in South Africa has come to the fore as one of the more pressing subjects that needs to be tackled to ensure the continuing education of disadvantaged students across the country.

On Friday 14 August 2015, the University of the Free State will host the first higher education colloquium on food insecurity on university campuses.  The one-day colloquium will take place during the Arts and Social Justice Week, in collaboration with the UFS’s Institute for Reconciliation and Social Justice Best practices will be shared, exploring the available research on student food insecurity at institutions of higher education.

Food insecurity has emerged as a pressing social justice issue affecting students countrywide. Action needs to be taken to promote the academic success of students, who will ultimately contribute to the country’s economic growth. One of the primary focus areas of the colloquium will be to establish a common practice to address this need.  Universities leaders, staff from wellness and social work departments, and SRC members from across the country who have been invited, and are expected to attend, are the University of Pretoria, the Tshwane University of Technology, North West University, UNISA, and the Central University of Technology.

Professor Jonathan Jansen will participate in a panel discussion alongside Ruda Landman and Prof Edelweiss Wentzel-Viljoen (HPCSA). This promises to be an inspiring meaningful dialogue, by asking the difficult question:  How do we change the food insecurity situation at universities?

The University of the Free State is currently the country’s leading university in addressing food insecurity on all its campuses through its flagship No Student Hungry Bursary programme, which has funded more than 500 students since it was established in 2011.

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