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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

Meet our Council: Mr Rantooa Moji – passionate about the welfare of workers
2017-07-07

Description: Mr Rantooa Moji  Tags: Mr Rantooa Moji  

Mr Rantooa Moji, member of the UFS Council
Photo: Stephen Collett

Mr Rantooa Moji has recently joined the UFS Council by virtue of being chairperson of the university’s Institutional Forum (IF).  The IF’s function is to advise Council in accordance with the Higher Education Act and UFS Statute.
 
Born and bred in Qwaqwa, Mr Moji is a junior lecturer in Chemistry at the university.  He completed his BSc (Hons) in Chemistry at the then UNIN (Qwaqwa), which is now part of the UFS.  He also completed an MA (HES) at the University of the Free State.
 
Fascinated with Chemistry
“I pursued science mainly due to my school background, but I also have a keen interest in the subject.  The diverse applications of Chemistry in daily life have always fascinated me and that is why I chose to pursue it,” he says.
 
During his postgraduate studies at the UFS, Moji was exposed to education and management trends in higher education.  He has subsequently become involved with labour relations issues through the personnel union Nehawu.  He says he has a passion for the welfare of workers and therefore fulfils a number of roles in the union, including representing members in disciplinary and grievance hearings, being part of the negotiations team, and representing the union on a number of institutional committees, such as the Health Care Committee.
 
Passion for worker’s welfare
Says Mr Moji: “I feel that my experience as an academic and a union activist puts me in good stead to ensure that the views and aspirations of employees are taken into account in the Council’s deliberations and decision-making.”
 
Mr Moji is married, with two daughters and one son.

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