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23 November 2021 | Story Leonie Bolleurs | Photo Supplied
With her talk on ‘Breaking the walls of darkness’, Emmie Chiyindiko came in second out of the 74 pitches presented at the recent Falling Walls Science Summit.

“I need you to take a moment and imagine trying to do everything that you do every day … without reliable energy. Or I’ll ask you this … How far would you walk to charge your phone if you didn’t have electricity? Would you walk for hours? Kilometres?”

“Well, that’s what millions of people in sub-Saharan Africa do daily to charge their phones. One billion people globally don’t have access to electricity in their homes and in sub-Saharan Africa, more than half of the population remains in the dark.”

This was the introduction to Emmie Chiyindiko’s talk at the recent Falling Walls Science Summit earlier this month. Emmie, who is a PhD student in Chemistry at the University of the Free State (UFS), came in second out of the 74 pitches presented with her talk on ‘Breaking the walls of darkness’ in the ‘Breakthrough of the year in the emerging talents category’.

Falling Walls Lab is a world-class pitching competition, networking forum, and steppingstone that brings together a diverse and interdisciplinary pool of students, researchers, and early-career professionals by providing a stage for breakthrough ideas, both globally and locally. 

Emmie, who sees getting out of bed every morning as just another opportunity to “be the exceptional young black female scientist that I am”, won the local Falling Walls Lab in Cape Town in October, which resulted in her going through to the finals in Berlin. She plans to host the Falling Walls Lab in Zimbabwe, her homeland, next year. 

This innovator and science communicator, whose work has been covered in Forbes Science, News24, and the Sunday Times, among others, refers to her obtaining second place on the international stage for her research as “a tremendous achievement and a new height in my science communication career. That level of recognition from the world leaders in science, technology, and science engagement cannot be overstated”.

Ending energy poverty

She believes Sustainable Development Goal 7 – leaving no one behind and eradicating global poverty – must be preceded by intentional efforts to end energy poverty. “My research on dye-sensitised solar cells (DSSC) with special metal complexes is among the most interesting alternatives to conventional solar cells.”

Emmie explains: “The design of the cells is inspired by photosynthesis – that good old process plants use to transform sunlight into energy via chlorophyll. Instead of a leaf, the cells start with a porous, transparent film of eco-friendly titanium dioxide nanoparticles. The film is also coated with a range of different dyes that absorb scattered sunlight and fluorescent light. When sunlight hits, it excites the electrons in the dye, creating an endless supply of energy. 

The bright side of this research is that there are several benefits to this invention. It produces energy that is cheap, reliable, and relatively simple and inexpensive to produce. Emmie adds: “These next-generation cells also work impeccably in low-light and non-direct sunlight conditions, providing all-year-round energy with no disruptions. DSSC is also three times cheaper than conventional cells and produces 40% more energy.”

Improving livelihoods 

She continues: “It does not degrade in sunlight over time as do other thin-film cells, making the cells last longer, and requiring less frequent replacement. DSSCs are also mechanically strong, because they are made of lightweight materials and do not require special protection from rain or abrasive objects.”

Emmie has proven that solutions to our current energy situation are available. “We are on the cusp of an energy revolution, and we must act now. Solutions are available, and if we do not seize them during a time of crisis, when will we?”

She believes that creating technology like this can end the energy crisis and improve livelihoods. “Billions of people simply lack enough energy to build a better life. Affordable, abundant, and reliable energy can go a long way to store food, power life-saving medical equipment, and run trains and factories. It can help communities to grow and prosper and to access opportunity and dignity. Societies where people have access to energy have lower childhood mortality, a higher life expectancy, they eat better and drink cleaner water, and have a better literacy rate.”

News Archive

UFS honours its sport stars
2008-10-24

 

The UFS's sport stars are, from the left: Robert Ebersohn, junior mens sport star, Boy Soke, Sportsman of the Year, and Mari-Lise Linde, junior women sport star. Adéle Niemand, Sportswoman of the Year, was absent.

 The University of the Free State (UFS) this week honoured its sport stars during the annual Kovsie Sports Dinner, held in Bloemfontein.

Boy Soke, long distance runner who has obtained national colours in all three disciplines of athletics was named Sportsman of the Year. Protea netball player Adéle Niemand was named Sportswoman of the Year for the second consecutive year.

The Cheetah and Springbok sevens rugby player, Robert Ebersohn and netball player Mari-Lise Linde were named junior sport stars.

“The inclusion of five of our students in the South African team that took part in the Beijing Olympic Games is an indication of the standard of sport at the university. We are proud of all our sportsmen and women and salute them for the effort they put in to achieving their goals,” said Mr James Letuka, Director of KovsieSport.

The UFS this year had several other achievements, namely: The inclusion of eight Free State cricket players in the amateur team, the hockey team winning the University Sport South Africa (USSA) B section, the inclusion of three soccer players in the USSA team, rugby winning the USSA competition for the second time, netball winning gold on the USSA tournament for the fourth consecutive year, and the ladies tennis winning the USSA tournament.

The following awards were also made in the university’s different sporting codes during the Kovsie Sports Dinner:

Roné Reyneke: Athletics
Boy Soke: Athletics
Murray Capon: Hockey
Cherie Smith: Hockey
Doretha Joubert: Netball
Riaan Jordaan: Cricket
Wayne Stevens: Rugby
Karin Coetzee: Tennis
Willem Steenkamp: Tennis
Gabisele Hlumbane: Soccer
Lehlohonolo Mofokeng: Soccer
Prof. Martin Dednam: Devoted service to badminton
Sarah Shannon: Special merit award for participating in the Paralympics Games in Beijing

The guest speaker was Dr Derik Coetzee who was the head of Springbok Rugby Team’s conditioning during last year’s Rugby World Cup.

Media Release
Issued by: Lacea Loader
Assistant Director: Media Liaison
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: loaderl.stg@ufs.ac.za  
23 October 2008
 

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