Lanthanide(III)-cored complex as a wavelength conversion material has been successfully designed and synthesized for highly efficient dye-sensitized solar cells, for the first time, since light with a short wavelength has not been effectively used for generating electric power owing to the limited absorption of these DSSCs in the UV region. A black dye (BD) was chosen and used as a sensitizer, because BD has a relatively weak light absorption at shorter wavelengths. The overall conversion efficiency of the BD/WCM device was remarkably increased, even with the relatively small amount of WCM added to the device. The enhancement in $V_oc}$ by WCM, like DCA, could be correlated with the suppression of electron recombination between the injected electrons and $I_3^-}$ ions. Furthermore, the short-circuit current density was significantly increased by WCM with a strong UV light-harvesting effect. The energy transfer from the Eu(III)-cored complex to the $TiO_2$ film occurred via the dye, so the number of electrons injected into the $TiO_2$ surface increased, i.e., the short-circuit current density was increased. As a result, BD/WCM-sensitized solar cells exhibit superior device performance with the enhanced conversion efficiency by a factor of 1.22 under AM 1.5 sunlight: The photovoltaic performance of the BD/WCM-based DSSC exhibited remarkably high values, $J_sc}$ of 17.72 mA/$cm^2$, $V_oc}$ of 720 mV, and a conversion efficiency of 9.28% at 100 mW $cm^-2}$, compared to a standard DSSC with $J_sc}$ of 15.53 mA/$cm^2$, $V_oc}$ of 689 mV, and a conversion efficiency of 7.58% at 100 mW $cm^-2}$. Therefore, the Eu(III)-cored complex is a promising candidate as a new wavelength conversion coadsorbent for highly efficient dye-sensitized solar cells to improve UV light harvesting through energy transfer processes. The abstract should be a single paragraph which summaries the content of the article.
由于短波长的光在紫外区的吸收有限,这些 DSSC 无法有效地用于发电,因此首次成功设计和合成了作为波长转换材料的
镧系(III)有芯配合物,用于高效
染料敏化太阳能电池。由于黑色
染料(BD)在较短波长处的光吸收相对较弱,因此被选为敏化剂。BD/WCM 器件的整体转换效率显著提高,即使添加的 WCM 相对较少。与 DCA 一样,WCM 对
$V_oc}$ 的增强可能与抑制注入电子和
$I_3^-}$ 离子之间的电子
重组有关。此外,WCM 还显著提高了短路电流密度,具有很强的紫外光收集效应。从 Eu(III)-cored 复合物到
$TiO_2$ 薄膜的能量转移是通过
染料实现的,因此注入
$TiO_2$ 表面的电子数量增加,即短路电流密度增加。因此,BD/WCM 敏化太阳能电池表现出卓越的器件性能,在
AM 1.5 阳光下的转换效率提高了 1.22 倍:基于 BD/WCM 的 DSSC 的光电性能值非常高,
$J_sc}$为 17.72 mA/
$cm^2$,
$V_oc}$为 720 mV,转换效率为 9.相比之下,标准 DSSC 的
$J_sc}$ 为 15.53 mA/
$cm^2$,
$V_oc}$ 为 689 mV,100 mW
$cm^-2}$ 时的转换效率为 7.58%。因此,Eu(III)掺杂复合物有望成为高效
染料敏化太阳能电池的新型波长转换共吸附剂,通过能量转移过程改善紫外光收集。摘要应为概述文章内容的一个单独段落。