Using domestic made equipment and industrial materials some 400cm 2 a Si/a Si tandem solar cells have been fabricated in our laboratory with initial efficiency of 8.28% and stable efficiency of 7.35%.

• 以全部国产化装备和工业用原材料，以简单铝背电极制备出初始效率为8.；28%25，经室外阳光照射一年后稳定效率为7