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.
A KAUST-led team developed a superabsorbent polyacrylate film for passive cooling, combining radiative and evaporative techniques without extra energy. The film uses sodium polyacrylate to absorb moisture and form a reflective film, reducing solar heating. Experiments showed the film lowered temperatures by five degrees Celsius, with simulations indicating a 3.3 percent reduction in total energy consumption. Why it matters: This innovation offers a sustainable alternative to traditional cooling systems, reducing carbon emissions and strain on energy grids in hot climates.
KAUST researchers have developed a surface treatment for jute storage bags to prevent moisture-induced damage to stored grains. The treatment involves roughening the jute surface with an alkali and applying a thin layer of paraffin wax. Experiments showed that seed moisture content reduced by up to 7.5 percent in wax-coated bags, and seed germination efficacy after storage was up to 35 percent higher. Why it matters: This simple, scalable technique could significantly reduce grain losses in developing countries and provide an environmentally friendly alternative for grain storage.
KAUST researchers have fabricated and tested high-efficiency perovskite-silicon tandem solar cells optimized for hot climates. The tandem device is more stable than conventional perovskite cells and optimized for industry use. Outdoor testing at KAUST confirmed performance improvements, indicating bromide-lean perovskite top cells with narrower bandgaps are ideal. Why it matters: The research demonstrates the viability of tandem silicon-perovskite cells in harsh environments, paving the way for more efficient solar technology in the region and globally.
KAUST is spearheading geothermal energy research in Saudi Arabia to support the Kingdom's Vision 2030 goals. In early 2024, KAUST and TAQA Geothermal partnered to drill a 400-meter test well on the KAUST campus for subsurface data collection. KAUST aims to serve as a testbed for geothermal technology development and deployment across the country. Why it matters: Geothermal energy offers a consistent, weather-independent renewable energy source that could significantly reduce emissions and boost economic efficiency in Saudi Arabia.
TII's Directed Energy Research Center (DERC) is now the first in the GCC to reproduce high-altitude electromagnetic pulses (HEMP) from nuclear reactions using its EMC labs, in partnership with Montena Technologies. The Nuclear Electromagnetic Pulse Simulator allows local testing of critical infrastructure and electronics, reducing reliance on foreign facilities. DERC's capabilities will support government entities and industries in hardening equipment against international standards. Why it matters: This provides strategic autonomy and enhances the UAE's ability to protect critical infrastructure from electromagnetic threats, benefiting various sectors including emergency services, telecommunications, and finance.
Researchers at KAUST and KACST have developed a composite material that enhances solar cell performance by absorbing air moisture at night and releasing it during the day. When applied to solar cells in Saudi Arabia, the material increased power output by 12.9% and extended cell lifespan by over 200%. The passive cooling technology also reduced electricity generation costs by 18%. Why it matters: This innovation addresses a key challenge in solar energy adoption in hot climates, potentially making solar power more efficient and cost-effective in the region.