Large-area transparent flexible guanidinium incorporated MAPbI3 microstructures for high-performance photodetectors with enhanced stability.

摘要: Unveiling the transparency and flexibility in perovskite-based photodetectors with superior photoresponse environmental stability remains an open challenge. Here we report on guanidinium incorporated metal halide perovskite (MA1−xGuaxPbI3, x = 0 to 0.65) random percolative microstructure (RPM) fabrication using ultra-fast spray coating technique. Remarkably, RPMs over a large area of 5 × cm2 flexible substrates ∼50% can be achieved enriched stability. Transparent based MA1−xGuaxPbI3 (x 0.12) manifest excellent performance responsivity 187 A W−1, detectivity 2.23 1012 Jones external quantum efficiency 44 115%. Additionally, exhibited mechanical under wide range bending angles number binding cycles. Integrating features including transparency, high performance, stability, scalability within photodetector is unmatched holds potential for novel applications transparent wearable optoelectronic devices.