Unlocking Tandem Photovoltaics: Enhancing Efficiency and Stability with LBIC from infinityPV
🌟 Exciting Breakthrough in Solar Cell Technology! 🌟
In a recent study, researchers incorporated pseudo-halogen thiocyanate (SCN) ions in iodide/bromide mixed halide perovskites, leading to remarkable enhancements. Mixed halide wide-bandgap perovskites present promising opportunities for tandem photovoltaics such as perovskite/organic solar cells. However, the challenge lies in halide phase segregation, which limits device efficiency and lifespan.
In this study, researchers introduced pseudo-halogen thiocyanate (SCN) ions to address this issue. SCN ions facilitated enhanced crystallization and reduced grain boundaries within the perovskite structure. By forming an I/Br/SCN alloy and occupying iodine vacancies, they effectively blocked halide ion migration, thereby minimizing energy loss.
The resulting perovskite/organic tandem solar cell demonstrated impressive performance, achieving a power conversion efficiency of 25.82% and operational stability lasting 1,000 hours.
This breakthrough, achieved through meticulous research and innovation, showcases the potential of mixed halide perovskites in tandem photovoltaics. By leveraging cutting-edge technology, such as infinityPV's LBIC (Ultrafast laser beam induced current) mapping, researchers gained crucial insights into the performance of these advanced solar cell materials.
While the LBIC mapping played a supportive role in characterizing the improvements, it's the collaborative effort and ingenuity of the research team that deserve recognition. Together, they've unlocked new possibilities for the future of solar energy, paving the way for more efficient and sustainable photovoltaic technologies.
Authors:
• Zhichao Z., Soochow University
• Weijie Chen, Soochow University
• Xingxing Jiang, Hunan University
• Jianlei Cao, Soochow University
• Haidi Yang, Soochow University
• Haiyang Chen, Soochow University
• Fu Yang, Soochow University
• Yunxiu Shen, Soochow University
• Heyi Yang, Soochow University
• Qinrong Cheng, Soochow University
• Xining Chen, Soochow University
• Xiaohua Tang, Soochow University
• Shuaiqing Kang, Soochow University
• Xue-mei Ou, Soochow University
• Christoph J. Brabec, Helmholtz-Institut Erlangen-Nürnberg für Erneuerbare Energien
• Yaowen Li, Soochow University
• Yongfang Li, Soochow University
🌐 Read the entire study here.