Publication date: 7th November 2016
A low-cost and simple process tandem structure including a top cell with high bandgap and a bottom cell with lower bandgap would be a promising candidate for high efficiency solar cells. In this work, perovskite solar cells (as a top cell) and p-type c-Si solar cells (as a bottom cell) were fabricated and perovskite/crystalline silicon tandem structure was introduced. In order to form a tandem structure, perovskite solar cell was stacked to the crystalline silicon solar cell with an inter junction layer. J-V curves were measured for the sample with an area of 0.09 cm2. The best fabricated tandem solar cell reaches the efficiency of 15.4% with JSC of 16.3 mA・cm-2, VOC of 1.42 V and FF of 66.6%. Considering the current match of series-connected top and bottom cells and improving the antireflection performance on the bottom cell, the perovskite-silicon tandem cells can be improved. The detail about tandem structure will be shown in this conference.
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