Japanese scientists have developed a heterojunction germanium solar cell with the biggest area ever achieved for the tech. It has an open-circuit voltage of 291 mV, a short-circuit current of 45.0 mA/cm2, and a fill factor of 0.656.Researchers from Tokyo City University have fabricated a germanium (Ge) heterojunction solar cell with an area of 1 square centimeter, which they claim is the highest level ever reported for the technology thus far. "The Ge heterojunction solar cell was developed as the bottom cell of the triple-junction solar cell," researcher Makoto Konagai told pv magazine. "Concrete ...Den vollständigen Artikel lesen ...
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