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Research explores solution for electricity generation

05 June 2019 | Story Leonie Bolleurs | Photo Leonie Bolleurs

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

Teacher training key to democracy and freedom

2011-12-06

MEC Mr Tate Makgoe (left) with Faculty of Education’s Prof. Dennis Francis, holding the inaugural SURLEC Award. With them is Dr Dipane Hlalele.
Photo: Thabo Kessah

Universities have the responsibility to respond to the challenges that the South African education system is faced with.

This is the view of the Free State MEC for Education, Mr Tate Makgoe, during his address at the three-day First Sustainable Rural Learning Ecologies (SURLEC) Colloquium, which was recently held at the Qwaqwa Campus of the University of the Free State (UFS).

“Our universities must not only research the failures of our system. They must also come up with solutions.

“One of the questions that demand answers in our country is whether we produce quality teachers at our universities, considering our learners’ performance internationally. Our children lack the basics like grammar and yet we are 17 years into democracy. Why is their performance so poor in comparison to children in poorer countries?” asked Mr Makgoe.

“We must work together as a Government and universities to change this. Universities must be anchors of democracy and freedom, which is meaningless if our children cannot read and write. We must also focus on Mathematics and Natural Sciences, not forgetting to value our indigenous knowledge and games to enhance learning, especially in Mathematics,” he said.

According to Dr Dipane Hlalele, Head of the Faculty of Education at the UFS Qwaqwa Campus, the colloquium was held to search for best practices and success stories relating to the theme, Creating sustainable rural learning ecologies in the 21^st century.

“Our objective was to tap into experiences and wisdom of policy makers, researchers, scholars, teachers and students in order to map a new direction in research as well as to make an indelible mark on the revitalisation of this campus,” concluded Dr Hlalele.

The UFS Dean of Education, Prof. Dennis Francis’ efforts to improve rural education were honoured with the first ever SURLEC Award.

Over 70 research papers from the universities of the Free State, South Africa, Venda, KwaZulu-Natal, Limpopo and the Cape Peninsula University of Technology were delivered and learners from the local schools like The Beacon, Mafube, Qwaqwa and Clubview presented their winning projects at the Science Expo.

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