Perovskite solar cells (PSC) are a new paradigm in renewable energy because of their high efficiency reaching over 25%. The perovskite solar cells' high efficiency is due to their excellent optoelectronic properties, which were optimized by various cations and anions with different ratios. Another advantage of perovskite solar cell is their simple fabrication through solution-processing methods, either in n-i-p or p-i-n configurations.
However, the PSCs' long-term stability is still a significant concern and is the bottleneck to commercialization. We have developed strategies to enhance the stability by using functionalized ionic liquids as additives and interface engineering by hydrophobic 2-Dimensional perovskite materials, preventing ion migration and protecting the perovskite absorber. The long-term stability of unencapsulated devices under one sun illumination retains>95% of their original efficiencies after 1000h aging.
In this webinar, we present layer by layer deposition of 3-Dimensional and 2-Dimensional perovskites and compositionally engineered perovskite with polymerizable novel ionic liquids resulting in 24% certified power conversion efficiency under one sun.
Mohammad Khaja Nazeeruddin
École Polytechnique Fédérale de Lausanne, Switzerland
Prof. Nazeeruddin's current research at EPFL focuses on Perovskite Solar Cells and Light-emitting diodes. He has published more than 725 peer-reviewed papers, ten book chapters, and he is the inventor/co-inventor of over 93 patents. His work's high impact has been recognized by invitations to speak at over 250 international conferences. He appeared in the ISI listing of most cited chemists and has more than 106'900citations with an h-index of 147. According to the Web of Science in 2016, he is the 5th most cited chemist in the world and is one of the 19 scientists identified by Thomson Reuters as the World's Most Influential Scientific Minds in 2015. He has been named Thomson Reuters "Highly Cited Researcher" from 2014 to 2020 and listed among the Top 10 researchers in the perovskite solar cell research field by the Times Higher Education. He has been elected to the European Academy of Sciences, Fellow of The Royal Society of Chemistry, and Fellow of Telangana Academy of Sciences and selected for the 34th Khwarizmi International Award (KIA) Laureate 2021.
Materials science and engineering
Session 1:presented April 15, 2021
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