Publication date: 22nd July 2026
Metal-halide perovskites provide a remarkably versatile platform for engineering optoelectronic properties through control of composition, structure, and dimensionality. Moving beyond conventional three-dimensional perovskites, low- and mixed-dimensional architectures introduce new degrees of freedom to manipulate quantum and dielectric confinement, excitonic character, electronic energy landscapes, and carrier transport.
In this talk, I will discuss our recent work on dimensionality engineering of metal-halide perovskites using thermal evaporation. The precise control over composition, thickness, and deposition sequence offered by vacuum processing enables the formation of low-dimensional phases, mixed-dimensional films, and multilayer heterostructures, providing a versatile platform to systematically tailor their optical and electronic properties.[1-3] We explore how the coexistence and spatial distribution of different dimensionalities reshape the energy landscape and influences carrier dynamics which ultimately results in a powerful design parameter to tune light absorption and emission, charge transport, and overall optoelectronic functionality.
These studies highlight multidimensional perovskites as a broader materials platform in which structure and dimensionality can be deliberately engineered to access functionalities beyond those available in conventional three-dimensional films, opening opportunities across photovoltaics, light-emitting devices, photodetectors, and emerging photonic and optoelectronic technologies.
