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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

“Every journey begins with the first steps” – Marguerite van der Merwe
2016-07-08

Description: Marguerite van der Merwe Tags: Marguerite van der Merwe

Marguerite van der Merwe, recipient of University of the
Free State Chancellor’s Medal, with Chancellor
Dr Khotso Mokhele, at the Winter Graduation ceremony.

Photo: Johan Roux

Marguerite van der Merwe has dedicated her life to the enrichment and increased quality of life for others. At the University of the Free State’s Winter Graduations on 30 June 2016, Van der Merwe and her brother, Anthony Douglas Osler, were both honoured with Chancellor’s Medals for exceptional service to South Africa and the world beyond our borders. In the early 1980s, she learned about the Alexander Technique and her life since then has been about perfecting the technique and sharing it with others. The Alexander Technique teaches people of any age, gender, occupation or interest, how to be posture-aware and perfect, how to be aware and alert, and how to be calm and discriminating, all of which are part of a practical teaching to integrate these qualities consciously into all our daily human activities.  

She walks the walk

She understood the Alexander Technique to be the perfect way to develop the body both physically and mentally, as it develops the higher mental faculties like focus, attention, awareness, consciousness, discrimination, and unfolding of the psyche, thus developing the human potential holistically as a spiritual way of being. She received her training for the technique in Cape Town and London, thereafter she published The Art of Walking, a guide to the Alexander Technique.

Van der Merwe is an internationally-certified teacher of the Alexander Technique, has been offering this work and its application in the spheres of health, education, and performance skills for 30 years, both nationally and internationally.

Van der Merwe says that the South African higher education system should encompass a holistic approach to teaching and educating. Education should envisage a modern vision of education that supports the evolution of the potential of the human being as a holistic system – a competent, skilled, caring, kind individual, developed in physical, mental, emotional and sensorial aspects. She believes that students thus educated will model ‘wholeness’ and ‘humanness’ as they take their place in society, business, education, and entrepreneurship.

Enriching women’s potential

Apart from The Art of Walking, Van der Merwe published EVE-OLUTION, a book to inspire women to listen to their intuition, and empower women to repossess their bodily wisdom, freedom, and authenticity. Van der Merwe proclaims that it is important to liberate women to take charge of their own bodies, minds, and souls. The purpose of the book is to ensure that young women soak up wisdom and encouragement and for older women to express their wisdom, which needs to be respected and listened to.

“Females and feminine roles in society and family are being liberated and acknowledged in the actions of many women as we stand for equal opportunity, equal power, and equality in many fields,” says Van der Merwe.
“Our young women in business and the higher education fraternity, for one, are strong in their views, beautiful in their presence, outspoken in leadership,” Van der Merwe concluded.

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