Flexible, large-area, and stable perovskite photodetectors have drawn increasing widespread research attention for next-generation wearable and portable optoelectronic devices. However, high mechanical durability coupled with large device area and enhanced environmental stability has not been demonstrated yet to attain practical viability. Herein, a highly bendable, stable, and large-area (3 cm²) flexible polystyrene incorporated perovskite photodetector is presented. Due to the formation of a porous polystyrene-perovskite composite film in a single step it allows unprecedented mechanical stability, maintaining 85% of its original photocurrent value after 10,000 bending cycles at a bending angle of 120°. Equally crucial, the solution-processed self-assembled Pt–Au nanochains were developed to provide a simple and fast method of patterning the conductive and flexible electrodes onto the filter substrate. The optimized polystyrene-perovskite photodetector exhibits a high responsivity up to 2.73 A W⁻¹, a maximum specific detectivity of 6.2 × 10¹³ Jones, and a superior switching ratio of 1.0 × 10⁴. In addition, the polystyrene-perovskite photodetector yields excellent stability under the combined stresses of moisture, ambient air, and room light, and retains 92% of its original performance for over 30 days. All these results demonstrate that this work provides a facile and cost-effective approach that paves the way to develop high-performance, stable, and highly flexible optoelectronic devices.

柔性，大面积和稳定的钙钛矿光电探测器已经引起了对下一代可穿戴和便携式光电设备越来越广泛的研究关注。然而，尚未证明高的机械耐久性与大的器件面积以及增强的环境稳定性来获得实用的可行性。在此，高度弯曲，稳定且大面积（3 cm ²）提出了结合有柔性聚苯乙烯的钙钛矿光电探测器。由于在一个步骤中形成了多孔聚苯乙烯-钙钛矿复合膜，因此可实现空前的机械稳定性，在120°弯曲角度下进行10,000次弯曲后，可保持其原始光电流值的85％。同样重要的是，溶液加工的自组装Pt–Au纳米链得到了发展，它提供了一种简单而又快速的方法来将导电和柔性电极构图到滤光片基板上。经过优化的聚苯乙烯-钙钛矿光电探测器显示出高达2.73 A W ^-1的高响应度，6.2×10 ¹³ Jones的最大比探测率和1.0×10 ⁴的出色开关比。此外，聚苯乙烯-钙钛矿光电探测器在潮湿，环境空气和室内光线的综合压力下具有出色的稳定性，并在超过30天的时间内保持其原始性能的92％。所有这些结果表明，这项工作提供了一种简便且具有成本效益的方法，为开发高性能，稳定且高度灵活的光电设备铺平了道路。