Cathode interfacial layer (CIL), phenylquinoline-based, 10-ethyl-3,7-bis(4-phenylquinolin-2-yl)-10H-phenothiazine (PTDPQ) was employed between the ZnO and photoactive layer, poly[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b']dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl] thieno[3,4-b]-thiophenediyl] (PTB7):[6,6]-phenyl C₇₁-butyric acid methyl ester (PC₇₁BM) for the inverted organic solar cells (IOSCs) and between LiF and PTB7:PC₇₁BM for conventional organic solar cells (COSCs). It was also incorporated as interfacial layer in perovskite solar cells (PSCs). For the ZnO/PTDPQ bilayer, the power conversion efficiency (PCE) enhanced to 8.69%, which is about 15% improvement than that of the control IOSCs reference device. For the PTDPQ/LiF bilayer, it was achieved to 8.06%, and after insertion of PTDPQ as interfacial layer for PSCs, average PCE enhanced to 16.45% from that of 15.28% reference device. Hereinafter, PTDPQ as CIL enhances the solar cells device performance. It is analyzed that the charge recombination is suppressed and facilitates charge extraction due to the incorporation of the dual CIL as accordance with observed improvement of the solar cell parameters. The devices with dual CIL showed the higher electron mobility which matches with the higher fill factor and improved current density. The dual CIL exhibited excellent impact on enhancing the photovoltaic properties of OSCs and PSCs along with long-term stability.

阴极界面层（CIL），基于苯基喹啉的10-乙基-3,7-双（4-苯基喹啉-2-基）-10 H-吩噻嗪（PTDPQ）用于ZnO和光敏层之间，聚[4， 8-双[（2-乙基己基）氧基]苯并[1,2-b：4,5-b']二噻吩-2,6-二基] [3-氟-2-[（2-乙基己基）羰基]噻吩[3,4- b ]-噻吩二基]（PTB7）：[6,6]-苯基C _71-丁酸甲酯（PC ₇₁ BM），用于倒置有机太阳能电池（IOSC），并且位于LiF和PTB7：PC _71之间常规有机太阳能电池（COSC）的BM。它也被并入钙钛矿太阳能电池（PSC）的界面层中。对于ZnO / PTDPQ双层，功率转换效率（PCE）提高到8.69％，比控制IOSC参考设备的功率转换效率提高了约15％。对于PTDPQ / LiF双层，达到了8.06％，并且在插入PTDPQ作为PSC的界面层之后，平均PCE从15.28％的参考设备提高到16.45％。在下文中，作为CIL的PTDPQ增强了太阳能电池器件的性能。根据观察到的太阳能电池参数的改善，由于结合了双CIL，分析了电荷复合被抑制并且促进了电荷提取。具有双CIL的器件显示出更高的电子迁移率，这与更高的填充因子和更高的电流密度相匹配。双CIL在增强OSC和PSC的光伏性能以及长期稳定性方面表现出出色的影响。