In Situ Directional Growth of 2D/3D Perovskite Hetero-Crystals for Highly Sensitive and Stable X-ray Imaging.
The performance of perovskite X-ray detectors is limited by the stability-sensitivity trade-off. Although 2D/3D heterostructures provide a promising route, fabricating single-crystalline interfaces with minimal defects remains challenging. Here, we develop a seed-mediated in situ directional epitaxy strategy to grow la...