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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

21 Icons: 21 Years of Freedom Collection at the University of the Free State
2015-09-02

   

In Prayer and Protest - Sophia Williams De Bruyn

The Johannes Stegmann Art Gallery, in partnership with 21 Icons, is hosting the 21 Years of Freedom Collection, an exhibition specially curated for the University of the Free State.
21 Icons celebrates a heroic past and inspires a hopeful future. The project was launched in 2013 as an initiative that uses film, photography and written narrative to celebrate the lives of extraordinary South Africans. It highlights people who have been catalysts in shaping society, on a local or global level and across a variety of contexts: in a social, political, environmental or artistic sense.

It is the brainchild of internationally renowned photographer and filmmaker Adrian Steirn, whose primary source of inspiration was the life of Nelson Mandela. In one way or another, all of the men and women featured in the project have extended his legacy, making a magnificent impact on South Africa and beyond.

  

Beautiful Sacrifice - Albie Sachs

21 Years of Freedom features 21 icons from the first and second seasons of the project. It includes the last official photographic portrait of Nelson Mandela and many of his friends and fellow struggle heroes. Behind each portrait lies a carefully planned concept that captures the essence of each icon, capturing their spirit and distinct legacy.

Among the other extraordinary South Africans featured in this collection, are struggle icons Ahmed Kathrada and Advocate George Bizos, Archbishop Desmond Tutu, human rights and environmental activist Kumi Naidoo, celebrated storyteller Gcina Mhlophe, Nobel laureate Nadine Gordimer, activist and musician Yvonne Chaka Chaka, gender activist Sophia Williams De Bruyn and artist William Kentridge.

    

The Full Report - Zubeida Jaffer

The 21 Icons was created as a movement for positive change. By sharing the stories of iconic South African men and women, the intention is to inspire new generations to follow in their footsteps.  With the country celebrating 21 years of democracy but still grabbling with injustices, the message that everyone can do something to make a difference, is portrayed in these powerful and inspiring stories.

Writer-in-residence and well-respected journalist, Zubeida Jaffer, who features among the collection of 21 striking photographs, opened the exhibition saying, “I feel like I’m surrounded by a circle of energy from which I have been fortunate to draw strength …It’s a choice that we make…whether to draw energy from those who are positive and forward looking or to surround ourselves with people who are fearful.  There is a lot to be fearful about in our country. We have lived through very fearful and difficult times.  But to cope with these times, those people and many others have kept their focus on hope.  They have kept their focus on what is possible…and what we would like South Africa to be in the future.”

For more information on 21 Icons: 21 Years of Freedom Collection contact the Johannes Stegmann Art Gallery at +27 (0)51 401 2706 or dejesusav@ufs.ac.za

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