In this study, we report a new BODIPY-based design, called the cross-conjugated design, that takes advantage of the α- and β-position functionalization of the BODIPY core. After synthesis, and compared to a more standard BODIPY dye, using similar functional groups and based on a horizontal design, called h-BOD, the new cross-conjugated BODIPY dye (cc-BOD) exhibits clearly the highest conjugation and light harvesting properties. Consequently, when used as photosensitizers in dye-sensitized solar cells (DSSCs), an impressive improvement of power conversion efficiency (PCE) has been observed, with a PCE of 6.02% with broad incident photon to current conversion efficiency (IPCE) for cc-BOD, compared to only 3.7% for h-BOD. Moreover, by co-sensitizing a DSSC with the two complementary absorbing dyes h-BOD and cc-BOD, we further improved the PCE up to 6.2%.

中文翻译：

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交联的BODIPY颜料，用于高效染料敏化太阳能电池

在这项研究中，我们报告了一种新的基于BODIPY的设计，称为交叉共轭设计，该设计利用了BODIPY核心的α和β位置功能化。合成后，与更标准的BODIPY染料相比，使用相似的官能团并基于水平设计（称为h -BOD），新的交叉共轭BODIPY染料（cc -BOD）显然具有最高的缀合和光收集特性。因此，如在染料敏化太阳能电池的光敏剂（DSSC中），的功率转换效率（PCE）一个令人印象深刻的改善使用时已经观察到，具有6.02％与广泛的入射光子的PCE到电流转换效率（IPCE），用于CC -董事会，而h -BOD仅为3.7％。此外，通过将DSSC与两种互补吸收染料h -BOD和cc -BOD共同增感，我们将PCE进一步提高了6.2％。