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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

‘Leadership is formed through ethical behaviour’
2012-08-20

Mr Edward Kieswetter
20 August 2012

“Being ethical is not about what we can do, it is about what we ought to do.” This is according to Mr Edward Kieswetter, Group Executive of Alexander Forbes Limited. During his lecture to MBA students in the Business School, Mr Kieswetter allowed the audience to engage in a discussion about ethics and leadership in the business world. Mr Kieswetter is also Vice-Chairperson of the UFS Council.

Part of the lecture was discussing South Africa as a country that was not born in ethics. Mr Kieswetter commented that although context was is very important in making decisions, South African people tended to, for example, and “feed on corruption, instead of acting actively against it”. Questions about South Africa’s ethical foundation were raised. Mr Kieswetter explained that one of the greatest challenges with the South Africans was to help them understand that a person always had a choice. “If you have to compromise on your own values, you are not doing anybody justice.”

Ethics can promote common and social goals if they are not determined by what people feel and strive to reach beyond the barriers that religious beliefs put up. He shared of his life’s most valuable lessons learned about people in leadership positions. “A great leader has incredible self-awareness and displays a huge amount of humility.” He said that in life it was not about being perfect; it was rather about being authentic, even in challenging times where the outcome might affect the current situation negatively. “My greatest successes came from lessons I learned in making mistakes and growing from them.

“If you have nothing to die for, then what is there to live for?” Mr Kieswetter said when asked whether he would compromise his financial position if he did not agree with the ethics of the company he worked for. “By constantly complaining instead of progressing, we are giving up our power to change, and that is a scary thing for South Africa as a developing country.” 
 

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