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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

Heidedal-based foundation and UFS host inaugural music concert
2015-12-04

ROC children rock in marimba music
Photo: Valentino Ndaba

Reach Our Community (ROC) Foundation in conjunction with the University of the Free State’s Odeion School of Music (OSM) held its first-ever music concert last month. Children who form part of the foundation’s Afterschool Care programme showed their impressive music skills to their parents and guardians in attendance.

ROC provides support to orphaned and vulnerable children from early childhood through to adolescence in the Heidedal community in Bloemfontein. The foundation strives to address the challenges resulting from factors such as poverty, unemployment, HIV/Aids, single parenting, lack of guardianship, and physical and sexual abuse. In the Afterschool Care programme, the children engage in educational, cultural, and recreational activities.

Going the extra mile

Since 2008, the UFS has successfully partnered with ROC through service learning and community engagement in which students from across all seven faculties participate. Two Music Education and Practice students from the OSM took it upon themselves to continue after their curriculum requirements were met.

Amy Viljoen- now a final-year BMus student, together with fellow student, Petre du Plessis, and their lecturer and programme coordinator, Gerda Pretorius, established the music class project in Heidedal in 2014. The students embarked on weekly trips to ROC, and would spend an hour working on the recorders and marimbas with children from ROC.

This year, Viljoen and Kara-Lynn Crankshaw, a final-year BA Music student, spent eleven months teaching the children music practice and theory, culminating in a concert that both the community and students can be proud of.

“I wanted to do something that was not only meant for educational purposes, but to give back to the community,” said Viljoen.

After having to gather extra chairs because of the influx of community members at the ROC hall, the founder, Patrick Kaars, said he had not expected such a turn-out. “It exceeded my expectations, and it was a dream come true. It meant so much to the children to be exposed to music, and to explore their own capabilities and talents.”

More children will learn how to play other instruments. Currently, the instruments used for the children’s training were purchased second-hand in order to cut costs. New music education specialists, who will join the programme in 2016, will also work with Pretorius to gather additional equipment, and compile learning material.

Kaars is also thrilled about the potential expansion to the music group, now that the concert has become an annual event. The OSM is also in the process of establishing a Centre for Music Development at ROC.

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