Sharp sets conversion efficiency record of 44.4%

Japan’s Sharp Corp has used a concentrator triple-junction III-V compound semiconductor photovoltaic cell to achieve a solar energy conversion efficiency of 44.4%, exceeding the record of 43.5% for concentrating conversion efficiency set in March 2011 by Solar Junction of San Jose, CA, USA, a manufacturer of III-V multi-junction solar cells for concentrated photovoltaics (CPV), and equalled by Sharp in June 2012.

Measurement of the 44.4% conversion efficiency was confirmed in April by the Fraunhofer Institute for Solar Energy Systems (ISE) in Freiburg, Germany cell surface of about 0.165cm2 under a light-concentrating magnification of 302 times. One of several organizations around the world that officially certifies efficiency measurements in solar cells, ISE is one of the participating members from the European Union in the the collaboration ‘NGCPV: A new generation of concentrator photovoltaic cells, modules and systems’, which began in June 2011 as part of the project ‘R&D in Innovative Solar Cells’.

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