Dr. Jiantao Wang
13/03/2024
ZOOM
13:00
Solar photovoltaic energy has been playing an increasingly important role in the world’s energy portfolio. It is becoming a key contributor in the global transition to decarbonized electricity generation. In the past decade, perovskite solar cells have emerged as a revolutionary photovoltaic technology, captivating the scientific community with their exceptional properties such as tunable bandgap, low-cost fabrication, and impressive efficiencies. However, reaching their full potential requires overcoming limitations such as stability and efficiency barriers in single-junction devices. This talk will delve into the dynamic field of perovskite photovoltaics, exploring my journey from single-junction cells to the groundbreaking advancements of tandem architectures. I will begin by outlining the fundamental principles and advantages of single-junction perovskite solar cells, highlighting their current performance benchmarks and inherent limitations. The core of the talk focuses on the game-changing concept of tandem perovskite solar cells. I will explore how these multi-junction devices circumvent the efficiency limitations of single-junction cells by harvesting a broader spectrum of sunlight. Key advancements in tandem perovskite architectures and their impact on efficiency improvements will be presented. Furthermore, I will delve into the remaining challenges and future directions of perovskite photovoltaics. By exploring these ongoing research efforts, I will shed light on the promising path towards realizing the full potential of perovskite solar cells, discovering how these game-changing devices are poised to revolutionize the solar energy landscape, and paving the way for a more sustainable future.