通过双齿苯胺盐提高钙钛矿太阳能电池的稳定性和效率。

Scalon Lucas, Szostak Rodrigo, Araújo Francineide L, Adriani Karla F, Silveira Julian F R V, Oliveira Willian X C, Da Silva Juarez L F, Oliveira Caio C, Nogueira Ana Flávia

Institute of Chemistry, University of Campinas, Campinas, São Paulo 13083-970, Brazil.

São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo 13560-970, Brazil.

JACS Au. 2022 May 4;2(6):1306-1312. doi: 10.1021/jacsau.2c00151. eCollection 2022 Jun 27.

We report improvement in the perovskite solar cell efficiency and stability after passivation with an organic molecule decorated with two anilinium cations. We compare this salt with its neutral analog and found that the change in the electron density distribution upon protonation and the presence of the halide anion are key to explaining the better passivation ability of the salt. In addition, we show that the counteranion has a significant impact on the performance of the device.

我们报道了用带有两个苯胺阳离子修饰的有机分子进行钝化后，钙钛矿太阳能电池的效率和稳定性得到了提高。我们将这种盐与其中性类似物进行了比较，发现质子化时电子密度分布的变化以及卤化物阴离子的存在是解释该盐具有更好钝化能力的关键。此外，我们表明抗衡阴离子对器件性能有重大影响。