KAUST's Functional Nanomaterials Laboratory (FuNL), led by Prof. Osman Bakr, focuses on synthesizing nanomaterials with novel optical, electronic, and magnetic properties for solar cells and other devices. The lab's research centers on controlling the size and composition of nanoparticles to optimize light absorption across different wavelengths. Unlike silicon-based solar cells, nanoparticle-based solar cells can be processed at low temperatures and potentially integrated with roll-to-roll printing. Why it matters: This research could lead to more efficient and versatile solar energy solutions, including printable photovoltaic thin films for buildings and flexible electronics.
Prof. Karl Leo has been appointed as the Director of KAUST's Solar and Photovoltaics Engineering Research Center (SPERC). He joins KAUST from Technische Universität in Dresden, bringing expertise in organic semiconductors and photovoltaics. His research aims to improve the efficiency and lifetime of organic solar cells, with a goal of reaching 20% efficiency. Why it matters: This appointment strengthens KAUST's solar energy research program and aligns with Saudi Arabia's focus on renewable energy technologies.
Researchers at KAUST, Fraunhofer ISE, and University of Freiburg developed a method using 1,3-diaminopropane dihydroiodide (PDAI) to treat the perovskite surface of perovskite silicon tandem solar cells. The treated solar cells achieved a conversion efficiency of 33.1% and an open-circuit voltage of 2.01 volts. The devices maintained performance at over 40°C for over 1500 hours along the Saudi coast. Why it matters: This innovation overcomes challenges in surface passivation of textured perovskite cells, paving the way for more efficient and stable solar energy solutions suitable for deployment in hot climates.
Professor Iain McCulloch from KAUST has won the Royal Society of Chemistry's Interdisciplinary Prize. McCulloch was recognized for his work in designing and applying functional materials in optics, electronics, and energy. His research focuses on creating new organic materials for flexible solar cells and other applications. Why it matters: This award highlights KAUST's increasing role as a hub for innovative materials science research with global impact.
KAUST researchers found Y-series nonfullerene acceptors enhance the outdoor stability of organic solar cells, enabling energy-efficient windows. They also used satellite data to show managed vegetation can mitigate rising temperatures across Saudi Arabia's agricultural regions. Additionally, they developed DeepKriging, a deep neural network, to solve complex spatiotemporal datasets and tested it on air pollution. Why it matters: This research addresses critical challenges in renewable energy, climate change, and AI data privacy relevant to Saudi Arabia and the broader region.
KAUST researchers have achieved a breakthrough by passing the damp-heat test for perovskite solar cells (PSCs), a rigorous assessment of their ability to withstand prolonged exposure to high humidity and temperatures. The team engineered 2D-perovskite passivation layers that block moisture and enhance power conversion efficiencies. The successful test, which requires maintaining 95% of initial performance after 1,000 hours at 85% humidity and 85 degrees Celsius, marks a significant step toward commercialization. Why it matters: This advancement addresses a critical weakness of PSCs and brings the technology closer to competing with silicon solar cells in terms of stability and longevity, crucial for widespread adoption of renewable energy.
KAUST researchers studied quantum dot (QD) solar cells, finding that QD size significantly impacts electron injection efficiency. Using femtosecond broadband transient absorption spectroscopy, they examined charge transfer between QDs and phenyl-C61-butyric acid methyl ester (PCBM). They demonstrated that smaller QDs with a bandgap larger than 1 eV facilitate electron transfer to PCBM upon light absorption. Why it matters: This work provides insights into optimizing QD solar cell design by tuning electron injection through QD size, potentially leading to more efficient and low-cost photovoltaic technologies.
KAUST Professor Iain McCulloch has received the 2020 Blaise Pascal Medal for Materials Science from the European Academy of Sciences (EurASc). McCulloch directs KAUST's Solar Center and also holds a professorship at Imperial College London. His research focuses on semiconducting small molecules and polymers for organic electronic devices, leading to advancements in organic solar cells. Why it matters: This award highlights KAUST's contributions to materials science and its focus on advancing solar energy technologies in the region.