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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

Academics should strive to work with students towards publishing, says NRF-rated researcher
2017-07-17

Description: Dr Rodwell Makombe Tags: National Research Foundation University of the Free State Qwaqwa Campus Department of English  

Dr Rodwell Makombe, Y-gegradeerde navorser.
Foto: Thabo Kessah


“The National Research Foundation (NRF) is a prestigious research institution and to be recognised by such an institution means that my work is worthwhile. This alone motivates me to do more research.” This is how Dr Rodwell Makombe reflected on his recent recognition as an NRF-rated researcher – one of the few on the Qwaqwa Campus. He is a Senior Lecturer in the Department of English at the University of the Free State’s Qwaqwa Campus.

“This recognition is indeed an important milestone in my research career. It means that my efforts as a researcher are recognised and appreciated. The financial research incentive will enable me to engage in more research, attend conferences, and so forth,” he said.

Comparing research in the Humanities and Sciences

Dr Makombe’s research area is broadly postcolonial African literature, but he is particularly interested in postcolonial literatures and resistance cultures. He is currently working on a book project entitled Visual Cultures of the Afromontane.

When asked what he thought about Natural Sciences being in the lead as far as research is concerned, he said that this is mainly caused by funding opportunities.

“It means that my efforts as a
researcher are recognised and
appreciated.”

“It is easier to access funding for research in the Natural Sciences than for the Humanities. Researchers in the Humanities usually do research without any form of funding. However, there are also differences in the way research is done in the Sciences than in the Humanities. Science researchers tend to work together on different projects, which make it easier for them to have their names on publications, no matter how small their contribution. This is also connected to the issue of funding,” he added. 

He continued: “Since research in the Humanities is largely unfunded, it is difficult for researchers to establish research groups. Another issue is that most academics in the Humanities do not necessarily teach modules within their research interests. Therefore, they tend to be overloaded with work as they have to do research in one area and teach in another area.”

NRF-rating and funding

For Dr Makombe, the solution to this challenge lies in academics in the Humanities working towards publishing with their students. “This way,” he said, “both the students and the academics will get publications that will help them to get NRF-rating and other forms of research funding. Modules in the Humanities need to be aligned to academics’ research interests to avoid mismatches between teaching and research.” 

He previously worked at the University of Fort Hare and the Durban University of Technology and has published several articles in both local and international journals.

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