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18 July 2019 | Story Julian Roup | Photo Leonie Bolleurs
Clear glass
UFS researchers Lucas Erasmus (left), researcher in the UFS Department of Physics and Prof Hendrik Swart, senior professor in the UFS Department of Physics and SARChI chair (South African Research Chairs Initiative) in Solid State Luminescent and Advanced Materials, with the equipment used for the ground-breaking research.

A revolutionary new type of window glass – in effect a transparent solar panel - is the objective of joint research being done by the University of the Free State (UFS) in South Africa and Ghent University in Belgium. 

A working model has been created which proves the viability of the process which now needs to be refined, made more efficient and brought to the market. It is hoped to achieve this within a decade.

This new product will have the capacity to revolutionise the generation of power cheaply from the sun to power homes, factories and cities in a new clean way.

Academics from the UFS, Prof Hendrik Swart and Lucas Erasmus are doing joint research with Ghent University in Belgium, to find solutions for energy production. 

The two universities entered into an agreement recently for this research into electricity generation. The research is driven by the UFS and was prompted by ever-rising electricity prices and growing demand for electricity production. South Africa lives with constant power outages which leaves people stuck in lifts and facing chaos on the roads as traffic lights cut out. Many people who can afford them now rely on generators.

Prof Hendrik Swart, senior professor in the Department of Physics at the University of the Free State and SARChI chair (South African Research Chairs Initiative) in Solid State Luminescent and Advanced Materials, says: “An innovation like this which can help to replace traditional means of carbon based fuel for power generation in our daily lives would be hugely welcome.”

Swart explains the main objective of the research: “The idea 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 buildings, vehicles and electronic devices. The goal is therefore to create a type of transparent solar panel.”

Swart says 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 cell phone users in the world, as it can be implemented in the screens of cell phones, where the sun or the ambient light of a room can be used to power the device without affecting its appearance,” he said.

Another possible application is in electric cars, where the windows can be used to help power the vehicle.

Lucas Erasmus who is working with Prof Swart adds: “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 diffused 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.”

It is envisaged that the technology will take about a decade to refine and implement. This study is currently on-going, and UFS are experimenting and testing different materials in order to optimise the device in the laboratory. It then needs to be upscaled in order to test it in the field. “It is truly the technology of the future,” says 
Erasmus.

The UFS envisages that the end result of this research will provide an attractive solution to address the energy demands of buildings, electric motor vehicles and mobile electronics without affecting their appearance. 

According to Swart, the agreement entails a joint doctoral degree in which both universities will supervise the project and the awarding of the doctorate. Lucas Erasmus, a student at the UFS, has been tasked with the assignment to conduct research at both institutions.

News Archive

Spring Graduation
2011-09-12

 

Our university will be awarding altogether 91 diplomas/certificates and 624 degrees during the Spring Graduation Ceremony on 14 and 15 September 2011. Of these, 23 doctorates and two honorary doctorates will also be awarded.

As with this year’s Autumn Graduation Ceremony, we will be making the ceremony more accessible to students and the public. Two appearances, in particular, can be looked forward to on this occasion: a national concert pianist in Grade 12 from Voortrekker High School in Bethlehem, Caryn Reed, and a continental debating champion and second-year student in our Faculty of Economic and Management Sciences, Sibusiso Tshabalala, as guest speaker.
 
All the master’s and doctoral degrees of the various faculties will once again be awarded during one ceremony on 15 September 2011.
 
Prof. Robert Frater, Emeritus Professor in Thoracic and Cardiovascular Surgery, and Emeritus Professor of Paediatrics, Albert Einstein College of Medicine and Montefiore Medical Centre, New York, will be receiving an honorary doctorate in Medical Science. As a teacher and trainer, Prof. Frater has influenced many surgeons in his training role in the wards, operating room and intensive care facility. Dr Akilagpa Sawyerr, an academic from Ghana, will be receiving an honorary doctorate in Education for groundbreaking work done on the African continent. Dr Sawyerr, who is a member of our International Advisory Council, has visiting appointments at prestigious universities, such as the famous Fletcher School of Law and Diplomacy at Tufts University. He also has visiting status at the Harvard Law School and the Yale Law School.
 
The full programme for the various ceremonies is:
  • Wednesday, 14 September 2011:
At 10:15, the degrees will be awarded to students of the Faculties of Humanities, Education, Law and Theology. Diplomas/certificates up until honours degrees will be awarded. This excludes the Certificate in Education, National Professional Diploma in Education and the Advanced Education Certificate.
 
At 15:15, degrees will be awarded to students in the Faculties of Economic and Management Sciences and Natural- and Agricultural Sciences and Health Sciences. Diplomas/Certificates up until honours degrees will be awarded.
  •  Thursday, 15 September 2011:
At 10:15, a total of 125 master’s and doctoral degrees plus two honorary doctorates will be awarded by all the faculties in a joint ceremony.
 
The Chancellor’s Dinner will also take place on the same day.

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