Green, M. A.Wenham, S. R.Zhao, J.Zolper, J.Blakers, A. W.2026-01-042026-01-040160-8371ORCID:/0000-0002-0800-2276/work/162946128https://hdl.handle.net/1885/733803557An overview of recent progress in silicon solar cell research at the University of New South Wales, Australia, is given. Recent results include the demonstration of 24% cell efficiency using the passivated emitter, rear-locally diffused (PERL) cell structure and an efficiency approaching 18% for polycrystalline cells. An AM0 efficiency above 20% for the former cells has been measured for the first time at NASA-Lewis, at SERI, and at Sandia National Laboratories. Initial batches of cells designed for concentrated sunlight have given efficiencies of up to 26.7%. In the polycrystalline cell area, an efficiency approach 18% has been demonstrated. Recent emphasis has been on investigating innovative approaches for texturing polycrystalline cells.4en19900025421722