This work we report a facile solution-processed fabrication of a hybrid polymer photodetector using n-type oriented Mg–Al co-doped ZnO nanorods (MAZO NRs) and P3HT. MAZO NRs show significantly enhanced light scattering (average haze 15.37%) compared to the Al-doped ZnO (AZO) and ZnO NRs from 300 to 800 nm. The efficient light-trapping induced enhanced light absorption level of the polymer layer. MAZO devices showed the best rectification ratio (52.6) and on-off ratio compared to the AZO and ZnO devices. The electric field and carrier recombination rate were simulated and theoretically analyzed. The results showed that, the stronger electric field and the blocking effect on the holes of the MAZO devices allow achieving enhanced a detectivity of 4.35*10⁹ Jones and a linear dynamic region of 21.56 dB under 625 nm. Our results provide a facile way for improving light-scattering for ZnO NRs and polymeric photodiode and other ZnO-based photovoltaic devices.

这项工作报告了使用 n 型取向 Mg-Al 共掺杂 ZnO 纳米棒（MAZO NRs）和 P3HT 的混合聚合物光电探测器的简便溶液加工制造。与 Al 掺杂的 ZnO (AZO) 和 ZnO NRs 相比，MAZO NRs 在 300 到 800 nm 范围内显示出显着增强的光散射（平均雾度 15.37%）。有效的光捕获诱导聚合物层的光吸收水平增强。与 AZO 和 ZnO 器件相比，MAZO 器件显示出最佳的整流比 (52.6) 和开关比。对电场和载流子复合率进行了模拟和理论分析。结果表明，较强的电场和对MAZO器件孔洞的阻挡作用使探测率提高了4.35*10 ⁹Jones 和 625 nm 下 21.56 dB 的线性动态区域。我们的结果为改善 ZnO NRs 和聚合物光电二极管以及其他基于 ZnO 的光伏器件的光散射提供了一种简便的方法。