Development of CuInSe₂ Micro-Concentrator Solar Cells by German Researchers
A team in Germany has innovated a micro-concentrator solar device using CuInSe₂, achieving a conversion efficiency of up to 0.65%. The method employs laser-assisted MOCVD for localized growth of indium islands, showing promise for efficient solar energy solutions.
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Researchers in Germany have fabricated a micro-concentrator solar device utilizing copper, indium, and selenium (CuInSe₂), achieving up to 0.65% efficiency under standard illumination. The device employs laser-assisted metal-organic chemical vapor deposition (LA-MOCVD) for localized growth of indium islands on molybdenum (Mo) substrates, forming a 7 × 7 array without the need for masks.
This technique enables the potential addition of gallium and copper locally. Testing showed that while initial measurements were promising, challenges related to intensity distribution and process repeatability must be addressed. Future optimization of this method could enhance resource efficiency and scalability in photovoltaic production.
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