Researchers at China's Nanjing University have fabricated a perovskite-organic tandem solar cell featuring a bottom organic subcell that uses a low-bandgap (LBG) acceptor to enhance near-infrared (NIR) absorption while reducing voltage losses. "A key factor limiting the efficiency of perovskite-organic tandem solar cells is the relatively low photocurrent density generated by the LBG organic subcells compared with their wide-bandgap (WBG) perovskite counterparts," corresponding author Qingdong Zheng told pv magazine. "This photocurrent imbalance largely originates from the substantial overlap ...Den vollständigen Artikel lesen ...
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