Self-powered and flexible perovskite photodetectors are holding great promise owing to their potential for high-performance wearable and portable optoelectronic applications. The light-induced ferro-pyro-phototronic effect can boost the performances of ferroelectric materials-based photodetector systems significantly. However, the utilization of the ferro-pyro-phototronic effect in polycrystalline halide perovskites films-based flexible photodetectors is rarely mentioned. Here, a ferro-pyro-phototronic effect boosted self-powered, flexible, and ultra-stable photodetector based on 1D/3D mixed perovskite ferroelectric film/P3HT heterojunction is demonstrated. By employing Pb(SCN)₂ as lead source to partially for fabricating high-quality MAPbI₃ film and incorporating 1D ferroelectric perovskite TMIMPbI₃, the overall optoelectronic performances were largely enhanced, with a low dark current of 7 × 10⁻⁹ A, a responsivity of 6.6 mA/W and a detectivity of 5 × 10⁹ Jones. The PDs displayed good folding endurance, and anti-humidity stability. The excellent performance is attributed to the reduced trap-density and enhanced pyro-phototronic effect induced by improved crystallinity and introduced ferroelectricity.

自供电和灵活的钙钛矿光电探测器因其在高性能可穿戴和便携式光电应用方面的潜力而具有巨大的前景。光诱导的铁热光电子效应可以显着提高基于铁电材料的光电探测器系统的性能。然而，很少提及在基于多晶卤化物钙钛矿薄膜的柔性光电探测器中利用铁热光电子效应。在这里，展示了一种基于 1D/3D 混合钙钛矿铁电薄膜/P3HT 异质结的铁热光电子效应增强自供电、柔性和超稳定光电探测器。通过采用 Pb(SCN) ₂作为铅源，部分用于制造高质量的 MAPbI ₃薄膜并结合一维铁电钙钛矿 TMIMPbI ₃，整体光电性能大大提高，暗电流为 7 × 10 ^-9 A，响应度为 6.6 mA/W，检测率为 5 × 10 ⁹ Jones。PD表现出良好的耐折性和抗湿稳定性。优异的性能归因于由提高的结晶度和引入的铁电性引起的陷阱密度降低和热光电子效应增强。