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Physics Seminar | PV Technology: The Quest for Efficiency
The first silicon solar cell was designed in Bell Laboratory in 1954. It had 6 percent power conversion efficiency PCE. The latest record (26.6 percent) was reported in 2017. It is onlya few percent lower than the thermodynamic limit of silicon. The cell efficiency is the most impactful characteristic of the cell as far as the levelized cost of energy (LCOE) is concerned. This explains the race for high efficiency between many PV technologies over many decades. Silicon is still dominating the PV market today because of its natural abundance non-toxicity, good absorbance of the visible light and the technological knowhow accumulated over decades by the silicon-based microelectronic industry. However, despite an exponential decrease of the cost of silicon, the quest for alternative materials that enable a further reduction of the solar energy cost continues. Perovskite materials emerged recently as very promising alternative to silicon. However, major challenges need to be addressed before perovskite-based solar technology reaches the market. We will review in this talk the international PV roadmap for silicon and discuss the R&D paths to develop a perovskite-based technology.
Speaker: Professor Nouar Tabet, Physics Department, University of Sharjah
Nouar Tabet received his PhD in Materials Sciences from University of Orsay Paris XI, France. He has served in many academic positions including Rector of the University of Constantine, Algeria, He is recipient of the Al-Marai Prize for Innovation in Physics, 2004, the “Research Excellence Award” of King Fahd University of Petroleum and Minerals. He has published more than 110 journals papers, holds two US patents and has five filed, and has authored the book Nanotechnology and its Applications. He co-chaired the 11th Beam Injection Assessment of Microstructure in Semiconductors (BIAMS) International Workshop (2012) and the First Sharjah International Conference on Nanotechnology and its Applications (2007). He was a visiting scientist at various research institutions, including the Advanced Light Source (ALS), Berkeley National Laboratory, USA; Massachusetts Institute of Technology, Boston, USA; and Institut de Science et Genie des Materiaux, Odeillo, CNRS / IMP Font Romeu, France.
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