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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 Safety Awareness March set to create a safe space for students
2017-07-27

 Description: Suspicious behavior Tags: safety, campaign, SRC, communication, awareness


The University of the Free State (UFS), in collaboration with various stakeholders, has dedicated the week of 24 to 28 July 2017 to creating awareness for the safety of students on and around its campuses.

UFS and CUT unite for safety
The highlight of the week will be on Thursday 27 July 2017 when a safety awareness march will take place from the Main Building on the Bloemfontein Campus to the Bram Fischer Building, where a memorandum will be handed over to Mr Sam Mashinini, MEC for Police, Roads, and Transport in the Free State. The march is a partnership between the UFS Student Representative Council (SRC) and the Central University of Technology (CUT).

 During a meeting on 24 July 2017, the Executive Committee of Senate granted formal approval for students and staff of the Bloemfontein Campus to take part in the safety march on 27 July 2017. For this reason, all lectures will be suspended from 11:00 to 13:00 on 27 July 2017 in order to give the campus community the opportunity to participate in the march. Academic staff, as well as staff in the administrative support services, are encouraged to join the march.

Programme for the safety march:


11:00: Marchers gather in front of the Main Building

11:15: Marchers depart from the Main Building to the Main Gate

11:30: Marchers exit the Main Gate and move towards the Central University of Technology (CUT). Students and staff who are unable to participate in the rest of the march, return to their work places or classes.

12:20: UFS and CUT marchers will gather at the Bram Fischer Building, situated on the corner of Nelson Mandela Avenue and Markgraaff Street. Here, the Rector and Vice-Chancellor of the UFS, Prof Francis Petersen, and the Vice-Chancellor and Principal of CUT, Prof Henk de Jager, will address the marchers, after which the memorandum will be read by the respective SRC Presidents and handed to Mr Mashinini.

Activities underway to raise safety awareness
During the week, the Student Representative Council (SRC), together with other stakeholders, have been involved in several activities on and off the Bloemfontein Campus, including door-to-door visits to student homes and residences on and around campus, awareness campaigns at all the gates of the campus, and a Safety Dialogue that will be held on Wednesday 26 July 2017 at the Equitas Auditorium. The aim of the Safety Week is to focus on informing, educating, and encouraging students as well as the Mangaung community at large, in order to work together in creating a safe environment for students.

The week started with the roll-out of an awareness campaign titled Reach Out, which is set to bring students and the community of Mangaung together to help decrease the number of violent crimes faced by students off campus. The communication plan includes safety messages, using outdoor billboards, posters on lampposts around the residential student areas, local community radio stations, campus media, and the university’s social media platforms.

A similar student safety awareness campaign will take place on the university’s Qwaqwa Campus during the week of 31 July 2017.



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