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Reagent for Perovskite Solar Cells: Purified Lead(II) Iodide

L0279-Fig.
The organic-inorganic hybrid solar cell first reported in 2009 by Miyasaka et al., the so-called perovskite solar cell, recently receive much attention.1) Power conversion efficiency (PCE) of the solar cell is more than 15%.2,3) A device of the perovskite solar cell can be fabricated in low cost, because it is solution-processible. At a main part of the solar cell, the organic-inorganic perovskite semiconductor (MeNH3PbI3) can functionalize as an absorption layer. Wakamiya et al. reported that use of highly purified lead(II) iodide is a key to fabricate efficient perovskite solar cell devices (PCE > 10%) with high reproducibility.4-6) Our product, the purified lead(II) iodide was produced by collaboration with Prof. Atsushi Wakamiya. The advantages of the purified lead(II) iodide (1) are as follows: (1) it contains an extremely low quantity of water for preparing a concentrated clear DMF solution, and (2) it can fabricate perovskite solar cell devices exhibiting high PCE of more than 10%.

*This product was produced by collaboration with Prof. Atsushi Wakamiya
at Institute for Chemical Research, Kyoto University.

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