Abstract
Silicon-based photovoltaics dominate the market. A study now sets a new record efficiency for large-area crystalline silicon solar cells, placing the theoretical efficiency limits within reach.
Highlights
HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not
Experts have considered that 25% was just about the practical limit for monocrystalline silicon solar cells[4,5,6]
In the Kaneka design, shadowing losses due to the front grid metallization are completely suppressed by using interdigitated back contact (IBC) solar cells
Summary
HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. A study sets a new record efficiency for large-area crystalline silicon solar cells, placing the theoretical efficiency limits within reach. These solar cells were contacted on both their front and back surfaces and used the so-called passivated emitter rear localized (PERL) technology, leading to an efficiency of 25% on a 4 cm[2] device[3].
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