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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

Confirmation of the security arrangements on the Bloemfontein and South Campuses for the week
2016-02-29

As communicated yesterday, please receive confirmation of the security arrangements:

The Bloemfontein Campus is secure and we have more than doubled the security arrangements, with the interdict firmly in place.

The university management condemns in the strongest possible terms the violence that took place at Xerox Shimla Park on the night of Monday 22 February 2016. It also condemns the disruptions of the university that followed Monday’s event, which resulted in the suspension of academic and administrative activities on the Bloemfontein Campus. In line with the terms of the interdict - and now that we are at full capacity to secure this very large and spread-out campus - the university will act swiftly and firmly if any protests or disruption recur.

The following security arrangements are in place:
1.  Staff and students must have their staff and student cards with them when entering the campus. Passengers in motor vehicles will have to present their cards to security personnel before access could be granted. Security personnel will check this physically by verifying that each person has a valid staff or student card.

2.  Buses will not be allowed to enter the campus and passengers will have to be dropped off outside the gates - passengers will enter through the turnstiles with their valid access cards. Anyone without a valid access card will have to go to the Visitors Centre and present positive proof of ID (SA ID, passport or driver’s licence).

3.  Pedestrians will have to swipe their cards at the turnstiles at the gates. Those without cards will have to enter through the Visitors Centre by presenting positive proof of ID (SA ID, passport or driver’s licence).

4.  Visitors must report to the Visitors Centre (at Gate 5 in DF Malherbe Drive) and present positive proof of ID (SA ID, passport or driver’s licence).

5.  Due to anticipated delays, it is advised that people allow some additional time when planning their routes to campus and to also make use of the less busy gates, such as Gate 4 (Furstenburg Road) and Gate 2 (Roosmaryn Residence).

6.  It is advised that walkways be used, especially at night, and that pedestrians should keep to areas that are well lit.

Security helpline: +27(0)51 401 2911 | +27(0)51 401 2634.

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