Uppsala University has achieved a groundbreaking milestone in solar energy technology, setting a new world record for electrical energy generation from CIGS (copper indium gallium selenide) solar cells with an unprecedented efficiency of 23.64 percent. This remarkable feat, verified by the independent institute Fraunhofer ISE in Germany and published in the journal Nature Energy, marks a significant advancement in the field of solar cell research.
Collaborating with the First Solar European Technology Center, Uppsala University has demonstrated exceptional progress in improving the efficiency of CIGS solar cells. The achievement underscores the university’s longstanding commitment to innovation in renewable energy technology.
Professor Marika Edoff, the driving force behind the study, highlights the meticulous analysis conducted to validate the record-breaking efficiency. Through advanced measurement techniques such as nano-XRF, transmission electron microscopy (TEM), and photoluminescence, researchers gained valuable insights into the structural and electrical properties of the solar cell.
CIGS solar cells, composed of layers of copper, indium, gallium, and selenide, offer promising potential as a competitive alternative for solar energy generation. The strategic balance of alkali metals and precise composition of the CIGS layer play pivotal roles in maximizing conversion efficiency, ensuring optimal absorption of sunlight and efficient electron transport.
The achievement of the world record not only elevates Uppsala University’s profile but also enhances the prospects of CIGS technology for various applications, including tandem solar cells. With its reputation for reliability, CIGS technology holds promise for widespread adoption in the renewable energy sector.
As the global demand for sustainable energy solutions continues to rise, Uppsala University’s breakthrough paves the way for further advancements in solar cell performance and opens new avenues for research and development. The university remains committed to driving innovation and contributing to the transition towards a greener, more sustainable future.
