4 papers
Revealing Polar Walls in CsPbBr3: Herringbone Structure and Formation Pathway
Weilun Li, Qimu Yuan, Michael B. Johnston +1
Domain walls in ferroic materials can host nanoscale functionalities absent from the periodic crystal, offering new opportunities to control electronic transport and polarization i…
Atomic Structure of Grain Boundaries, Dislocations and Associated Strain in Templated Co-evaporated Photoactive Halide Perovskites
Huyen T Pham, Siyu Yan, Zhou Xu +4
Structural defects, particularly grain boundaries, play a crucial role in governing charge transport and the optoelectronic properties of metal halide perovskites, thereby limiting…
Discovery of Ferroelectric Twin Boundaries in a Photoactive Halide Perovskite
Weilun Li, Qimu Yuan, Michael B. Johnston +1
Halide perovskites have emerged as promising materials for next-generation photovoltaics, laser sources and X-ray detectors. There is intense debate as to whether some photoactive…
Deriving a comprehensive dataset of optical constants for metal halide perovskites
Akash Dasgupta, Shuaifeng Hu, Seongrok Seo +5
Accurate optical constants are essential for modelling light propagation, absorption, and ultimately photovoltaic performance in state of the art perovskite solar cells and is espe…