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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

UFS the only university in South Africa with a P-rated history researcher
2016-12-13

Description: Dr Daniel Spence  Tags: Dr Daniel Spence  

Dr Daniel Spence has been earmarked by the NRF
to become a future international leader in his field
of expertise.
Photo: Supplied

The University of the Free State (UFS) is the only university in South Africa with a P-rated History researcher. Dr Daniel Spence, a postdoctoral Research Fellow at the International Studies Group (IGS), and a member of the Vice-Chancellor’s Prestige Scholar’s Programme at the UFS, was last week awarded a National Research Foundation P-rating by the National Research Foundation (NRF). Dr Spence is the first South African historian to achieve this honour.

Leader of the pack
P-ratings are given to young researchers, usually under the age of 35, who have the potential to become leaders in their field. Researchers in this group are recognised by all, or the overwhelming majority of, reviewers as having demonstrated the potential to become future international leaders.

The rating is awarded on the basis of exceptional research performance and output from their doctoral and early postdoctoral research careers.

Other researchers from the UFS who obtained P-ratings in the past, are Prof Lodewyk Kock (1986), Prof Zakkie Pretorius (1989), and Prof Robert Schall (1991).

Extraordinary achievement lauded  
“It is an extraordinary achievement. There are fewer P-ratings, than there are A-ratings,” said Prof Neil Roos, associate professor at the ISG. Prof Roos said the P-rating was seldom awarded to researchers within the field of Humanities.

As a member of the ISG, Dr Spence’s research has flourished under the guidance of Prof Ian Phimister. Much of the success of this group is due to the way it operates as an incubator for high-level research, with scholars collaborating with each other.

In addition to Dr Spence’s magnificent P-rating, the ISG currently has three C1-rated researchers (established researchers with a sustained recent record of productivity in their field) and two Y1-rated researchers (researchers 40 years old or younger, who are recognised by all reviewers as having the potential to establish themselves as future leaders in their fields).

“From the time Dr Spence wrote his doctoral thesis on the colonial history of the Royal Navy, he has expanded his field of expertise so that he can address imperial and global histories of race,” said Prof Roos.

Demonstrated research excellence

Dr Spence secured a postdoctoral Research Fellowship at the UFS to develop an African case study to augment his Asian and Caribbean research thesis into a monograph. In March 2013, Dr Spence won a three-year NRF Postdoctoral Innovation Scholarship, and learned Kiswahili ahead of archival research in Kenya and Tanzania from April to May of that year. He has conducted archival and oral research in Singapore, Malaysia, Hong Kong, Australia, Kenya, Zanzibar, the Cayman Islands, Trinidad, and the UK.

Internationally renowned
Dr Spence is the author of two monographies, the Colonial Naval culture and British imperialism, 1922-67 and A History of the Royal Navy: Empire and Imperialism. He has been invited to present papers and chair panels at over 20 international conferences, workshops and seminars.

The NRF rating system is a benchmarking system through which individuals who exemplify the highest standards of research, as well as those demonstrating strong potential as researchers, are identified by an extensive network of South African and international peer reviewers.

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