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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

Prof Helene Strauss delves into the emotion and politics of contemporary South African protest cultures
2014-12-22

Prof Helene Strauss from the University of the Free State’s (UFS) Department of English currently researches the relationship between emotion and politics in contemporary South African public and protest cultures.

The research foregrounds the complex set of concerns opened up by a study of intimacy, read as not simply a sign for emotional and sexual closeness, but more broadly as a complexly mediated site from which to observe the embodied, affective coordinates of various forms of control and contestation. Through the analysis of a range of cultural texts that, for instance, recompose moments of spectacular social upheaval through the lenses of everyday, embodied experience, this research considers what aesthetic responsibility might mean in both post-transitional South Africa and elsewhere.

One aspect of this research charts a gradual shift in South Africa from what is frequently referred to as the ‘liberation euphoria’ of the mid- to late 1990s – and the optimistic fantasies of a future South Africa that characterised dominant public discourse in the period immediately following the political transition – toward an emotional culture in which expressions of anger, disillusionment and disappointment seem to have become relatively widespread.

Prof Strauss asks, for instance, how these public feelings have been managed in the aftermath of events such as the Marikana massacre, and suggests that the affective and temporal dimensions of current attempts at containing perceived threats to financial and political stability on the part of South Africa’s business and political elite are key to understanding increasingly violent and repressive securitisation strategies.

Earlier this year, Prof Strauss presented papers on aspects of this research at two international conferences: (i) the Association for Cultural Studies conference in Tampere, Finland, where she was invited to be part of a ‘Spotlight Panel’ on the topic of African Cultural Studies, (ii) and at a conference at McMaster University in Hamilton, Canada, which she helped to co-organise.

An article based on some of this work has been published in the journal Safundi.

For more of Prof Strauss’s research published in journals, follow the links below:
http://www.tandfonline.com/toc/rsaf20/current#.VAf88_mSxqU
http://www.tandfonline.com/toc/riij20/15/1#.VAf80vmSxqU
http://www.palgrave-journals.com/sub/journal/v4/n2/index.html

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