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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

Free State Receives R7 Million Grant from the Mellon Foundation for Arts Innovation
2015-11-30


Man in the Green Blanket, Lesiba Mabitsela.
Photo: Karla Benade

Bloemfontein will experience a flood of new, experimental art over the next four years as a result of R7 million that has been received to develop experimental art projects in central South Africa. The Andrew W. Mellon Foundation recently awarded the grant to the University of the Free State (UFS) for the Programme for Innovation in Artform Development (PIAD). Initiated jointly by the UFS and the Vrystaat Arts Festival in 2014, PIAD was established as a programme to promote the exploration of the arts to advance interdisciplinary research and to impact on human development.

The Andrew W. Mellon Foundation is a New York-based, non-profit organisation which endeavours to strengthen, promote, and, where necessary, defend the contributions of the humanities and the arts to human flourishing, and to the well-being of diverse and democratic societies.

“The Innovation in Artform Development initiative will provide an important contribution to the ways in which the university hopes to broaden and deepen research and dialogue about the humanities in South African society. Using the arts as a vehicle to engage communities around issues of social significance, makes for an exciting endeavour, and we are happy to have Mellon’s financial and partnership investment in this initiative,” said Prof Jonathan Jansen, Vice-Chancellor of the UFS.

“This substantial support from the Foundation will play a pivotal role in facilitating collaborations with national and international artists to explore new, innovative modes of artistic practice and creative production in South Africa,” said Angela de Jesus, UFS Art Curator and Co-Director of PIAD.

“A series of First Nations projects, arts/science research and artist residencies, arts laboratories for creative practitioners, the production of exciting new work for Bloemfontein, and critical debates/forums is expected over the next few years,” she added.

PIAD focuses on supporting cross-cultural, experimental art programmes that can assist South African society creatively. For this process, PIAD is engaging the skills and expertise of South Africa artists in collaboration with several international partners, who are recognised as global leaders in this field, to develop a mutually- beneficial programme of engagement.  

Innovation, technology, and new forms of art will be explored and international collaborations that have the potential to attract benefits for the creative industries in Bloemfontein and beyond will be introduced.

“The artistic landscape of the Free State - in fact the whole South Africa - will be forever changed because of this extraordinarily generous grant. Rarely does a regional community get a chance to lead innovation on a national scale, and also impact on experimental art internationally. We are in for an incredible artistic journey,” said Dr Ricardo Peach, Director of the Vrystaat Arts Festival and Co-Director of PIAD.

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