Low-Dimensional Perovskite Materials and Devices

Dear Colleagues,

Three-dimensional (3D) metal halide perovskites (MHPs) have rapidly emerged as one of the hottest topics due to their excellent optoelectronic properties and solution processability. Their high absorption coefficients, long charge-carrier diffusion length, tunable bandgap, and low-cost processability are among the most attractive advantages of perovskite materials. These merits have enabled the development of optoelectronic devices with record efficiency, such as solar cells and light-emitting diodes (LEDs), that are comparable to those of standard commercialized devices.

Beyond 3D MHPs, low-dimensional perovskites (2D, 1D, and even 0D) with unique crystal structures that incorporate larger, less volatile, and generally more hydrophobic organic cations exhibit improved thermal, chemical, and environmental stability, thus leading to more stable optoelectronic devices. Moreover, low-dimensional perovskites can play different roles within optoelectronic devices, either as primary materials or as a capping layer on top of a 3D perovskite layer (e.g., 2D/3D perovskite heterostructure). Reducing the crystal dimension of perovskite will result in quantum and dielectric confinements, leading to larger optical band gaps and exciton-binding energies. Topics to be covered within this Special Issue include, but are not limited to, the following:

Synthesis and characterization of perovskite and low-dimensional perovskite materials;
Fundamental studies of perovskite materials (structural stability, electronic, phonons, optical, defects, and charge transport, etc.);
Optoelectronic applications of perovskite and low-dimensional perovskite materials (solar cells, LEDs, lasers, photodetectors, X-ray imaging, photonic devices, flexible and integrated devices, etc.);
Modeling and theoretical studies (first-principles simulations, molecular dynamics simulations, and device simulations);
Environmental impact and sustainability of perovskite and low-dimensional perovskite materials and devices.

We welcome original research articles, reviews, and perspectives covering these topics and related areas. This Special Issue aims to provide a platform for researchers to share their latest findings and insights, and we look forward to publishing high-quality research in this exciting field. The contributions of researchers in this Special Issue will enhance our understanding of perovskite and low-dimensional perovskite materials and ultimately advance the development of perovskite-based materials and devices to achieve a sustainable future. This Special Issue will be focused on basic research related to materials and devices in the form of thin films and nanocrystals.

We look forward to receiving your submissions.

Dr. Junke Jiang
Guest Editor

Manuscript Submission Information

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• low-dimensional perovskite
• synthesis techniques
• crystal structures
• optoelectronics
• device physics
• simulations