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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

Esteemed Tutu family honorary guests at first intercontinental symposium
2013-10-08

 

08 October 2013
Photo: Karina Turok

The University of the Free State (UFS) will be hosting a visit by Archbishop Desmond Tutu and Mrs Leah Tutu. The occasion is to launch the Annual Intercontinental Leah Tutu Symposium on rape and violence against women in honour of Mrs Tutu, who has been an outspoken advocate of women’s rights and the sanctity of family life.

The Inaugural Intercontinental Leah Tutu Symposium will take place on:

Thursday 17 October 2013
12:00-14:00
Scaena Theatre


The launch of the Annual Intercontinental Leah Tutu Symposium is organised by Profs Pumla Gobodo-Madikizela (who hosts the Dialogue between Science and Society lecture series) and Heidi Hudson (Director of the Centre for Africa Studies). The Inaugural Intercontinental Leah Tutu Symposium will feature gender and policy analyst Nomboniso Gasa as keynote speaker and Sheila Meintjes, Wits University professor with expertise in gender politics, violence and conflict transformation. The event will also feature voices of survivors of rape and sexual violence, including Johannesburg businesswoman and social entrepreneur, Andy Kawa, who is a survivor of rape and started the organisation Enuf is Enuf to campaign for an end to rape and sexual violence.

On Mrs Tutu’s 80th birthday, during the family’s visit to the UFS, Archbishop Desmond Tutu will also be in conversation with the Vice-Chancellor and Rector, Prof Jonathan Jansen, at a public event: Celebration of a partnership: Archbishop Tutu pays tribute to his wife, on the topic: Man to Man: The Meaning of Leah in My Life.

Thursday 17 October 2013
16:30-18:00
Centenary Complex


The public event is part of the Dialogue between Science and Society lecture series, in collaboration with Mrs Grace Jansen and the Tutu Legacy Foundation.

Please RSVP to Anja Pienaar at pienaaran@ufs.ac.za or +27(0)51 401 7330 or Jo-Anne Naidoo at naidooja@ufs.ac.za or +27(0)51 401 7160.

Two of their daughters, Rev Mpho Tutu and Dr Thandeka Tutu-Gxashe, will accompany Archbishop Desmond and Mrs Leah Tutu.

Short Bio of Mrs Leah Tutu

Nomalizo Leah Tutu is an outspoken advocate for the rights of women and the sanctity of family life. She was awarded an Honorary Doctorate in 2000 by the National Louis University in Atlanta for her commitment to human rights and support of her husband’s work. She is patron of the Phelophepa Train, a health project that brings medical care to people living in remote areas of South Africa. She is also a patron of the Tshwaranang Centre that provides legal advocacy to end violence against women. With Archbishop Tutu, Mrs Tutu is a patron of the Tygerberg Children’s Hospital in Cape Town. She, Archbishop Tutu, and family established the Desmond and Leah Tutu Legacy Foundation in 2012.

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