Samuel Stranks1
University of Cambridge1
The efficiency of halide perovskite optoelectronic devices including solar cells and LEDs continue to rise, yet operational stability remains a challenge. Here, I will outline recent developments towards understanding and realising stable perovskite device operation in both solar cell and LED platforms on different length scales. I will show a variety of multimodal operando microscopy measurements to understand device degradation, realising generalised understanding of instability pathways. I will show how material and contact optimisation and passivation leads to greatly increased device stability, opening up pathways to realise long-term stability.