Controlling Energy Flow in Perovskite Heterostructures Through Dimensionality and Phase Engineering.

Metal halide perovskites have emerged as a transformative class of semiconductors, driving advancements in optoelectronics, photovoltaics, and sensing technologies. One of the key challenges in optimizing these materials for next-generation devices is controlling the flow of energy within them, which is highly sensitive to structural and dimensional factors. Recent advances in phase and dimensionality engineering have opened new avenues for tailoring energy transport and excitonic behaviors in perovskite heterostructures. By controlling the dimensionality and tuning the phases of perovskites, it is possible to achieve enhanced efficiency, stability, and selectivity in energy transfer processes. This perspective explores the fundamental principles of energy flow in perovskites and related materials, highlighting how phase transitions and dimensionality control can be leveraged to design optimized heterostructures for cutting-edge optoelectronic applications.