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Superoxide radical derived metal-free spiro-OMeTAD for highly stable perovskite solar cells The migration and hygroscopicity of lithium salt in doped spiro-OMeTAD hampers the device efficiency of perovskite solar cells. Die Anfrage nach Pho­to­vol­ta­ik­an­lanthanum­gen bleibt aber weiterhin droben und Fachkräfte, die die Solaranlagen inst

A major 2008 energy bill passed by the Pennsylvania legislature created loan and grant funds for businesses and local/state government agencies making energy efficiency improvements or constructing new sustainable facilities. This fund differs from similar initiatives rein that it supports renewable energy aside from solar. Grants may be available

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