The dye‐sensitized solar cell (DSC) is a proven technology that operates efficiently under both sunlight and ambient dim light. However, because sunlight is significantly different from ambient dim light in terms of irradiance and emission spectrum, designing a single sensitizer that can perform equally efficiently under both conditions remains practically difficult. For the first time, panchromatic Ru(II) sensitizers bearing the tBu substituted 6‐quinolin‐8‐yl‐2,2′‐bipyridine anchor and 2,6‐bis(pyrazolyl)pyridine ancillary with peripheral CF₃ and C₃F₇ substituents and central tBu substituent are synthesized to provide superior conversion efficiency. The quinolin‐8‐yl‐2,2′‐bipyridine anchor enhances the spectrum response from 550 to 700 nm, which is particularly important to fluorescent light spectrum. Furthermore, the introduction of bulky C₃F₇ and tBu groups effectively increase the steric hindrance that allows better dye uptake and suppresses interfacial recombination, both of which are important for light harvesting under dim light. The champion device in this study exhibits a remarkable power conversion efficiency of 31.82% under 6000 lux fluorescent light without the use of a cosensitizer. Meanwhile, the device also shows a high PCE of 10.37% under simulated 1 sun irradiation, making it the first ruthenium sensitizer suitable for both high and dim light applications under the same fabrication condition in DSC.

中文翻译：

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新型钌敏化剂设计用于在阳光和环境暗光下均能有效收集光

染料敏化太阳能电池（DSC）是一项经过验证的技术，可以在日光和环境暗光下高效运行。然而，由于日光在辐照度和发射光谱方面与周围的暗光显着不同，因此设计在两种条件下均能有效工作的单一敏化剂实际上仍然很困难。带有tBu取代的6-喹啉-8-基-2,2'-联吡啶锚和2,6-双（吡唑基）吡啶辅助的全色Ru（II）增感剂首次带有外围CF ₃和C ₃ F ₇合成了取代基和中心tBu取代基以提供优异的转化效率。喹啉-8-8-2,2'-联吡啶锚可将光谱响应从550 nm提高到700 nm，这对荧光光谱尤为重要。此外，引入了笨重的C ₃ F ₇tBu和tBu基团有效地增加了空间位阻，从而可以更好地吸收染料并抑制界面重组，这两者对于在昏暗的光线下进行采光都很重要。在不使用助敏剂的情况下，本研究中的冠军设备在6000 lux荧光灯下的功率转换效率高达31.82％。同时，该器件在模拟的1次日光照射下也显示出10.37％的高PCE，使其成为第一款适用于DSC中相同制造条件下的高光和暗光应用的钌敏化剂。