Dr. Justine Nyarige – Project Coordinator FA(ST)2Africa
Dr. Justine Nyarige, a physicist with a PhD specializing in nano- and microtechnology at KIT, has been living in Karlsruhe with his family since 2023. Since 2025, he has been contributing his expertise to the project as a programme coordinator.
What is the significance of the FAST(2)-Africa project in your opinion?
The FA(ST)2-Africa project is a crucial initiative in addressing Africa’s challenges in different sectors such as energy, water, and climate change through advanced science and technology. It focuses on collaborating with different African universities to develop sustainable solutions tailored to the continent’s needs. By fostering collaborations between African and European researchers, the project enhances knowledge exchange and capacity building. In my opinion, its impact extends beyond scientific advancements, as it will also contribute to economic development and improved quality of life for communities facing these challenges.
At which universities have you studied so far?
I completed my Bachelor of Science in Physics and Mathematics at the University of Nairobi in Kenya, followed by a Master of Science in Physics at the same institution. I then pursued my PhD in Physics at the University of Pretoria in South Africa.
What is the content of your research?
I have specialized in semiconductor Physics, Material Science (nano and microtechnology) for photoelectrochemical water splitting and photodegradation applications. Briefly, in my research, fabricate/synthesize different inorganic materials like Metal oxides (Fe2O3, and TiO2) on different substrates such as indium doped tin oxide (ITO) on glass and then use simulated sun in the laboratory which is equivalent to 1 sun to split the water, producing H2 that can be used as a fuel and O2 can have different applications. At the same time, I also employ the same materials and approach for the photodegradation of water-borne pollutants, such as organic dyes.
What brought you to KIT?
I first visited KIT from September to December 2022 for a research stay in Prof. Bryce S. Richards’s lab at his invitation. This was part of a collaborative project, Performance Enhancement of Solar-Driven Photocatalytic Materials for Water Treatment (SolPhoWat), between the University of Pretoria (South Africa) and the University of Dar es Salaam (Tanzania), initiated during a workshop in South Africa. The project was funded by the German Research Foundation (DFG). During my visit, I was impressed by the state-of-the-art facilities and equipment, which inspired my decision to join KIT. Later, I was awarded the Alexander von Humboldt (Georg Forster Fellowship) to continue my research at KIT from 2023 to date.
What were the reasons for choosing your field of study?
My passion for Physics grew during my undergraduate studies, particularly in understanding how scientific principles can be applied to solve real-world challenges. As I progressed, I became particularly interested in Semiconductor Physics and Material Science, especially for energy and other applications. Given the global challenges of climate change and energy sustainability, I was drawn to research that focuses on renewable energy and clean water solutions, which are also the main challenges developing nations like Africa are facing. This led me to specialize in photocatalysis and nanotechnology for sustainable energy and water purification.
How do you like Germany?
Germany has been a great experience for me. The research environment is highly stimulating, and the emphasis on innovation, novelty, and collaboration is quite impressive for me. I appreciate the efficiency and organization in both academic and everyday life. Though the cultural differences took some adjustment, I’ve found it to be a rewarding experience, especially with the opportunity to work alongside top researchers in my field.
What do you do in your free time?
In my free time, I enjoy spending time with my family, exploring new places, and experiencing different cultures. I also like reading scientific literature to stay updated on recent developments in my field. Additionally, I enjoy outdoor activities, which help me relax and stay active.
How is life for your family in Karlsruhe?
Since I arrived in 2023, I have received a lot of support from KIT. At first, I had the chance to stay at the International Guest House, which gave me time to look for permanent accommodation. I found an apartment after a few months. KIT supported me a lot to make sure that my family felt comfortable and well taken care of. I was even able to secure a kindergarten spot for my daughter, which can be quite difficult. My family is really enjoying life in Karlsruhe. My daughter has grown a lot over the past two years and now loves going to kindergarten and playing with her friends.
What plans do you have for the future?
My long-term goal is to contribute to the development of sustainable energy solutions and water purification technologies. I aim to continue researching novel materials and techniques that can improve the efficiency of renewable energy systems. I also aspire to collaborate with institutions and industries to translate research findings into real-world applications that can benefit society.